KR102685950B1 - Honeycomb adsorbent composition for canister - Google Patents
Honeycomb adsorbent composition for canister Download PDFInfo
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- KR102685950B1 KR102685950B1 KR1020230013618A KR20230013618A KR102685950B1 KR 102685950 B1 KR102685950 B1 KR 102685950B1 KR 1020230013618 A KR1020230013618 A KR 1020230013618A KR 20230013618 A KR20230013618 A KR 20230013618A KR 102685950 B1 KR102685950 B1 KR 102685950B1
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- activated carbon
- canister
- honeycomb
- adsorbent composition
- surface area
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 51
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000011230 binding agent Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 17
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000005995 Aluminium silicate Substances 0.000 claims description 9
- 235000012211 aluminium silicate Nutrition 0.000 claims description 9
- 229920000609 methyl cellulose Polymers 0.000 claims description 9
- 239000001923 methylcellulose Substances 0.000 claims description 9
- 235000010981 methylcellulose Nutrition 0.000 claims description 9
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052625 palygorskite Inorganic materials 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 16
- 239000001273 butane Substances 0.000 abstract description 14
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract description 14
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract description 14
- 238000003795 desorption Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 239000012855 volatile organic compound Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 235000019645 odor Nutrition 0.000 description 5
- 229910052624 sepiolite Inorganic materials 0.000 description 5
- 235000019355 sepiolite Nutrition 0.000 description 4
- 238000002336 sorption--desorption measurement Methods 0.000 description 4
- 239000004113 Sepiolite Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000002734 clay mineral Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 229910052621 halloysite Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 230000005068 transpiration Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229910001649 dickite Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052622 kaolinite Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 206010008805 Chromosomal abnormalities Diseases 0.000 description 1
- 208000031404 Chromosome Aberrations Diseases 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 208000015114 central nervous system disease Diseases 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 208000032839 leukemia Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28042—Shaped bodies; Monolithic structures
- B01J20/28045—Honeycomb or cellular structures; Solid foams or sponges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28011—Other properties, e.g. density, crush strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
- B01J20/28066—Surface area, e.g. B.E.T specific surface area being more than 1000 m2/g
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0854—Details of the absorption canister
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
본 발명은 캐니스터용 허니컴 흡착제 조성물에 관한 것으로, 더욱 상세하게는 비표면적이 1500 내지 2300m2/g인 활성탄, 바인더 및 충전재로 이루어진다.
상기의 성분으로 이루어지는 허니컴 흡착제 조성물은 비표면적이 1500 내지 2300m2/g인 활성탄을 사용하여 부탄 흡탈착성능이 부여되며 압축강도와 같은 기계적 물성이 캐니스터용으로 사용하기에 적합한 특성을 나타낸다.The present invention relates to a honeycomb adsorbent composition for a canister, and more specifically, consists of activated carbon, a binder, and a filler having a specific surface area of 1500 to 2300 m 2 /g.
The honeycomb adsorbent composition composed of the above components uses activated carbon with a specific surface area of 1500 to 2300 m 2 /g, provides butane adsorption and desorption performance, and exhibits mechanical properties such as compressive strength suitable for use in canisters.
Description
본 발명은 캐니스터용 허니컴 흡착제 조성물에 관한 것으로, 더욱 상세하게는 비표면적이 1500 내지 2300m2/g인 활성탄을 사용하여 부탄 흡탈착 성능이 부여되며 압축강도와 같은 기계적 물성이 캐니스터용으로 사용하기에 적합한 특성을 나타내는 캐니스터용 허니컴 흡착제 조성물에 관한 것이다.The present invention relates to a honeycomb adsorbent composition for canisters, and more specifically, by using activated carbon with a specific surface area of 1500 to 2300 m 2 /g, butane adsorption and desorption performance is provided, and mechanical properties such as compressive strength are used for canisters. A honeycomb adsorbent composition for canisters exhibiting suitable properties.
휘발성유기화합물(VOCs, Volatile organic compounds)은 인체 및 생태계에 미치는 영향이 커서 특정 대기 유해물질로 분류되고 있으며, 또한 광화학 반응을 통하여 오존 등과 같은 2차 오염물질인 광화학 산화물을 생성시킨다.Volatile organic compounds (VOCs) are classified as specific air pollutants because they have a significant impact on the human body and ecosystem. They also generate photochemical oxides, which are secondary pollutants such as ozone, through photochemical reactions.
이와 같은 휘발성 유기화합물은 발암성이 높다고 알려져 있는 화학물질이 다수 포함되어 있기 때문에 인체에 유독하며 오존층 파괴, 지구온난화, 광화학 스모그, 악취 등의 문제점을 야기한다.These volatile organic compounds are toxic to the human body because they contain many chemicals known to be highly carcinogenic and cause problems such as ozone layer destruction, global warming, photochemical smog, and bad odor.
휘발성 유기화합물의 인체에 대한 직접적인 영향은, 방향족 탄화수소류의 휘발성 유기화합물 중 벤젠의 경우에는 백혈병과 중추신경 장애를 일으킨다고 알려져 있으며, 매우 낮은 농도의 벤젠에 노출되었던 사람에게도 염색체 이상이 종종 발견된다고 보고되고 있다.The direct effect of volatile organic compounds on the human body is that benzene, a volatile organic compound of aromatic hydrocarbons, is known to cause leukemia and central nervous system disorders, and chromosomal abnormalities are often found in people who have been exposed to very low concentrations of benzene. It is being reported.
한편, 유기 용제류는 그 자체가 독성을 지니고 있거나 그 속에 포함된 이물질들의 독성이 높아 문제시되고 있다. 대표적인 유기용제로는 벤젠, 톨루엔, 크실렌 등의 방향족 탄화수소류가 있다.Meanwhile, organic solvents are problematic because they are toxic themselves or the foreign substances contained therein are highly toxic. Representative organic solvents include aromatic hydrocarbons such as benzene, toluene, and xylene.
종래에는 휘발성유기화합물을 흡착 및 제거하는 흡착제 조성물로 활성탄이 주로 사용되고 있는데, 활성탄의 제조 원료로는 목재, 석탄, 코코넛 열매와 같은 탄소함유 물질이 사용되며, 활성탄의 종류로는 분말탄, 입상탄 그리고 섬유상 활성탄 등이 있다.Conventionally, activated carbon is mainly used as an adsorbent composition for adsorbing and removing volatile organic compounds. Carbon-containing materials such as wood, coal, and coconut fruit are used as raw materials for the production of activated carbon. Types of activated carbon include powdered carbon and granular carbon. And there is fibrous activated carbon.
한편, 자동차, 바이크(자동 이륜차)나 보트 등, 가솔린 등의 증산 연료를 연소시키는 내연 기관을 탑재한 차량에서는, 외기 온도 변화 등에 따라 연료 탱크 내의 압력이 변동되어, 연료 탱크 내에 충만한 증산 연료 가스가 연료 탱크로부터 방출된다. 방출되는 증산 연료 가스는, PM2.5나 광화학 스모그의 원인 물질의 하나로 여겨지고 있고, 이를 대기 중에 방출하는 것을 막기 위해, 흡착제를 구비한 캐니스터가 마련되어 있다.On the other hand, in vehicles equipped with an internal combustion engine that burns transpiration fuel such as gasoline, such as cars, motorcycles (motorcycles), and boats, the pressure in the fuel tank fluctuates due to changes in outside air temperature, etc., and the transpiration fuel gas filled in the fuel tank may evaporate. released from the fuel tank. The emitted transpiration fuel gas is considered one of the causative substances of PM2.5 and photochemical smog, and a canister equipped with an adsorbent is provided to prevent it from being released into the atmosphere.
또한, 캐니스터의 경우 일반적으로 펠릿형 흡착제를 주로 사용하나 일부를 하니컴용 흡착제로 변경하는 경우 전체 흡착/탈착 성능이 개선되며, 이에 따라 관련 규제가 강화되어 허니컴형 흡착제의 사용량이 증가하고 있는데, 종래에 허니컴형 흡착제는 부탄에 대한 흡탈착성능이 없고, 기계적 강도가 낮아 캐니스터용으로 부적합한 문제점이 있었다.In addition, in the case of canisters, pellet-type adsorbents are generally mainly used, but if some of them are changed to honeycomb adsorbents, the overall adsorption/desorption performance is improved. As a result, related regulations are strengthened, and the use of honeycomb-type adsorbents is increasing. The honeycomb type adsorbent had a problem in that it had no adsorption/desorption performance for butane and had low mechanical strength, making it unsuitable for canisters.
본 발명의 목적은 비표면적이 1500 내지 2300m2/g인 활성탄을 사용하여 부탄 흡탈착 성능이 부여되고 압축강도와 같은 기계적 물성이 캐니스터용으로 사용하기에 적합한 특성을 나타내는 캐니스터용 허니컴 흡착제 조성물을 제공하는 것이다.The object of the present invention is to provide a honeycomb adsorbent composition for canisters that provides butane adsorption and desorption performance using activated carbon with a specific surface area of 1500 to 2300 m 2 /g and exhibits mechanical properties such as compressive strength suitable for use in canisters. It is done.
본 발명의 목적은 비표면적이 1500 내지 2300m2/g인 활성탄, 바인더 및 충전재로 이루어지는 것을 특징으로 하는 캐니스터용 허니컴 흡착제 조성물을 제공함에 의해 달성된다.The object of the present invention is achieved by providing a honeycomb adsorbent composition for a canister, characterized in that it consists of activated carbon, a binder, and a filler having a specific surface area of 1500 to 2300 m 2 /g.
본 발명의 바람직한 특징에 따르면, 상기 캐니스터용 허니컴 흡착제 조성물은 비표면적이 1500 내지 2300m2/g인 활성탄 25 내지 35 중량%, 충전재 53 내지 67 중량% 및 바인더 8 내지 12 중량%로 이루어지는 것으로 한다.According to a preferred feature of the present invention, the honeycomb adsorbent composition for a canister is composed of 25 to 35% by weight of activated carbon with a specific surface area of 1500 to 2300 m 2 /g, 53 to 67% by weight of filler, and 8 to 12% by weight of binder.
본 발명의 더 바람직한 특징에 따르면, 상기 활성탄은 비표면적이 2100 내지 2150m2/g인 것으로 한다.According to a more preferred feature of the present invention, the activated carbon has a specific surface area of 2100 to 2150 m 2 /g.
본 발명의 더욱 바람직한 특징에 따르면, 상기 충전재는 카올린, 팔리고르스카이트, 수경성 산화알루미늄 및 세피올라이트로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것으로 한다.According to a more preferred feature of the present invention, the filler is made of one or more selected from the group consisting of kaolin, paligorskite, hydraulic aluminum oxide, and sepiolite.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 충전재는 카올린과 팔리고르스카이트가 1:1의 중량부로 혼합되어 이루어지는 것으로 한다.According to an even more preferred feature of the present invention, the filler is made by mixing kaolin and paligorskite in a 1:1 ratio by weight.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 바인더는 메틸셀룰로오스계 바인더로 이루어지는 것으로 한다.According to an even more preferred feature of the present invention, the binder is made of a methylcellulose-based binder.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 메틸셀룰로오스계 바인더는 메틸셀룰로오스, 카르복시메틸셀룰로오스 및 히드록시프로필메틸셀룰로오스로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것으로 한다.According to an even more preferred feature of the present invention, the methylcellulose-based binder is made of one or more selected from the group consisting of methylcellulose, carboxymethylcellulose, and hydroxypropylmethylcellulose.
본 발명에 따른 캐니스터용 허니컴 흡착제 조성물은 비표면적이 1500 내지 2300m2/g인 활성탄을 사용하여 부탄 흡탈착 성능이 부여되고 압축강도와 같은 기계적 물성이 캐니스터용으로 사용하기에 적합한 특성을 나타내는 흡착제를 제공하는 탁월한 효과를 나타낸다.The honeycomb adsorbent composition for canisters according to the present invention uses activated carbon with a specific surface area of 1500 to 2300 m 2 /g to provide butane adsorption and desorption performance and has mechanical properties such as compressive strength suitable for use in canisters. It provides excellent effects.
이하에는, 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.Below, preferred embodiments of the present invention and the physical properties of each component are described in detail, but are intended to be described in detail so that a person skilled in the art can easily carry out the invention. This does not mean that the technical idea and scope of the present invention are limited.
본 발명은 캐니스터용 허니컴 흡착제 조성물에 관한 것으로, 비표면적이 1500 내지 2300m2/g을 나타내는 활성탄, 바인더 및 충전재로 이루어지며, 비표면적이 1500 내지 2300m2/g을 나타내는 활성탄 25 내지 35 중량%, 충전재 53 내지 67 중량% 및 바인더 8 내지 12 중량%로 이루어지는 것이 바람직하다.The present invention relates to a honeycomb adsorbent composition for a canister, which consists of activated carbon having a specific surface area of 1500 to 2300 m 2 /g, a binder and filler, comprising 25 to 35% by weight of activated carbon having a specific surface area of 1500 to 2300 m 2 /g, It is preferably comprised of 53 to 67% by weight of filler and 8 to 12% by weight of binder.
상기 활성탄은 비표면적이 1500 내지 2300m2/g을 나타내며, 25 내지 35 중량%가 함유되는데, 상기와 같인 비표면적을 갖는 활성탄은 부탄 흡탈착 성능(BWC, Butane Working Capacity)이 부여되어 캐니스터용으로 적용하기에 적합한 흡착제 조성물이 제공될 수 있도록 하는 역할을 한다.The activated carbon has a specific surface area of 1500 to 2300 m 2 /g and contains 25 to 35% by weight. Activated carbon having the above specific surface area is given butane adsorption and desorption performance (BWC, Butane Working Capacity) and is used for canisters. It serves to provide an adsorbent composition suitable for application.
상기 활성탄의 비표면적이 1500m2/g 미만이면 부탄 흡탈착 성능이 부여되지 못해 캐니스터용으로 적용될 수 없으며, 상기 활성탄의 비표면적이 2300m2/g을 초과하게 되면 상기의 효과는 크게 향상되지 않으면서 허니컴 구조의 흡착제를 제조하는 과정에서 균일(Crack)이 발생할 수 있기 때문에 바람직하지 못하다.If the specific surface area of the activated carbon is less than 1500 m 2 /g, butane adsorption and desorption performance is not provided and it cannot be applied for canisters, and if the specific surface area of the activated carbon exceeds 2300 m 2 /g, the above effect is not significantly improved. This is undesirable because cracks may occur during the manufacturing process of the honeycomb-structured adsorbent.
이때, 상기 활성탄의 비표면적은 2100 내지 2150m2/g을 나타내는 것이 가장 바람직한데, 상기의 비표면적을 나타내는 활성탄을 사용하게 되면 부탄 흡탈착성능이 우수하면서도 기계적 강도가 향상되어 캐니스터용으로 가장 적합한 허니컴 구조의 흡착제를 제공할 수 있다.At this time, it is most preferable that the specific surface area of the activated carbon is 2100 to 2150 m 2 /g. When activated carbon showing the above specific surface area is used, the butane adsorption and desorption performance is excellent and the mechanical strength is improved, making the honeycomb most suitable for canisters. An adsorbent having a structure can be provided.
또한, 상기 비표면적이 1500 내지 2300m2/g을 나타내는 활성탄의 함량이 25 중량% 미만이면 상기의 효과가 미미하며, 상기 상기 비표면적이 1500 내지 2300m2/g을 나타내는 활성탄의 함량이 35 중량%를 초과하게 되면 상기의 효과는 크게 향상되지 않으면서 상대적으로 바인더와 충전재의 함량이 줄어들기 때문에, 허니컴 흡착제 조성물의 형태안정성이나 기계적 물성이 저하될 수 있다.In addition, if the content of activated carbon having a specific surface area of 1500 to 2300 m 2 /g is less than 25% by weight, the effect is insignificant, and the content of activated carbon having a specific surface area of 1500 to 2300 m 2 /g is 35% by weight. If it exceeds , the morphological stability or mechanical properties of the honeycomb adsorbent composition may be reduced because the content of binder and filler is relatively reduced without significantly improving the above effect.
상기 충전재는 53 내지 67 중량%가 함유되며, 카올린, 팔리고르스카이트, 수경성 산화알루미늄 및 세피올라이트로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것이 바람직한데, 본 발명에 따른 흡착제 조성물의 기계적 강도를 향상시킬 뿐만 아니라, 수분저항성이나 흡착성능을 더욱 향상시키는 역할을 한다.The filler contains 53 to 67% by weight and is preferably made of at least one selected from the group consisting of kaolin, paligorskite, hydraulic aluminum oxide, and sepiolite, and improves the mechanical strength of the adsorbent composition according to the present invention. In addition, it plays a role in further improving moisture resistance and adsorption performance.
상기 카올린은 가장 대표적인 점토광물이며, 단위구조는 규산 4면체층과 알루미나 8면체층이 1: 1로 되는 구조를 가지며, 카올리나이트, 디카이트(dickite), 내크라이트(nacrite)의 구조가 다른 3종류의 광물과 층간수가 첨가된 할로이사이트(halloysite)를 포함할 수 있다. 할로이사이트 이외의 3광물의 화학조성식은 [Al2Si2O5(OH)4] 또는 [Al2O3·2SiO2·2H2O]이며 산화물의 중량%는 SiO2 46.5%, Al2O3 39.5%, H2O 14.0%로 점토광물 중에서는 가장 일정한 조성을 가진다.The kaolin is the most representative clay mineral, and its unit structure has a 1:1 structure of a silicic acid tetrahedral layer and an alumina octahedral layer, and is composed of three types with different structures: kaolinite, dickite, and nacrite. It may contain halloysite with added minerals and interlayer water. The chemical composition of the three minerals other than halloysite is [Al 2 Si 2 O 5 (OH) 4 ] or [Al 2 O 3 ·2SiO 2 ·2H 2 O], and the weight percent of the oxide is SiO 2 46.5%, Al 2 O 3 39.5% and H 2 O 14.0%, which has the most consistent composition among clay minerals.
상기와 같은 특성을 나타내는 카올린은 상기의 효과 외에도 공기 중에 함유되어 있는 인체에 해로운 각종 세균이나 바이러스, 곰팡이, 미세먼지, 악취 등의 냄새 성분과 오염물질을 살균, 탈취 및 정화시키는 효과를 나타낸다.In addition to the above effects, kaolin, which exhibits the above properties, has the effect of sterilizing, deodorizing, and purifying odors and pollutants such as various bacteria, viruses, mold, fine dust, and odors that are harmful to the human body contained in the air.
또한, 상기 수경성 산화알루미늄은 본 발명에 따른 흡착제 조성물의 기계적 강도를 향상시킬 뿐만 아니라, 수분 저항성을 향상시켜 다습한 조건에서도 흡착제 조성물의 물성이 유지될 수 있도록 하는 역할을 한다.In addition, the hydraulic aluminum oxide not only improves the mechanical strength of the adsorbent composition according to the present invention, but also improves moisture resistance so that the physical properties of the adsorbent composition can be maintained even under high humidity conditions.
또한, 상기 팔리고르스카이트는 침상으로 산출되는 2:1 점토광물로서 화학식은 [Si8Mg2Al2O20(OH)2(OH)2·4H2O]인데, 규산 4면체의 사슬구조에 의한 터널(tunnel)구조를 가지며 터널 내에 물분자를 함유한다. 주로 건조지역의 토양에 존재하고, 상업적으로는 아타풀자이트(attapulgite)로 알려져 있으며 비료 제조 과정에 이용되기도 하는데, 본 발명에서는 흡착제 조성물의 기계적 강도를 향상시키며 휘발성 유기화학물의 흡착효과를 더욱 향상시키는 역할을 한다.In addition, the paligorskite is a 2:1 clay mineral that occurs in the form of needles, and its chemical formula is [Si 8 Mg 2 Al 2 O 2 0(OH) 2 (OH) 2 4H 2 O], which has a chain structure of silicic acid tetrahedron. It has a tunnel structure and contains water molecules within the tunnel. It mainly exists in the soil of dry areas, and is commercially known as attapulgite and is also used in the fertilizer manufacturing process. In the present invention, it improves the mechanical strength of the adsorbent composition and further improves the adsorption effect of volatile organic chemicals. It plays a role.
또한, 상기 세피올라이트는 해포석(海泡石)이라고도 하며, 화학성분은 [Mg4Si6O15(OH)2·6H2O]으로, 굳기는 2 내지 25이고, 비중은 2를 나타내는데, 섬유상의 결정도 있으나 보통은 토상(土狀)의 미소한 결정의 집합체로 전자현미경으로만 관찰할 수 있다. 백색, 회색, 녹색 및 황색을 띠며 건조한 덩어리로 된 것은 물에 뜰 만큼 가볍고, 미국에서는 염호(鹽湖)의 바닥에 다량으로 존재한다. 탐사보링용 이수(泥水)나, 구워서 건조제(乾燥劑)로 사용하는데, 본 발명에서는 흡착제 조성물의 기계적 강도를 향상시키며 휘발성 유기화학물의 흡착효과를 더욱 향상시키는 역할을 한다.In addition, the sepiolite is also called meerschaum, and its chemical composition is [Mg 4 Si 6 O 15 (OH) 2 ·6H 2 O], hardness is 2 to 25, and specific gravity is 2. There are fibrous crystals, but they are usually aggregates of earth-like microscopic crystals that can only be observed with an electron microscope. The white, gray, green and yellow dried lumps are light enough to float and are found in large quantities at the bottom of salt lakes in the United States. It is used as mud water for exploration boring or as a desiccant by baking. In the present invention, it improves the mechanical strength of the adsorbent composition and further improves the adsorption effect of volatile organic chemicals.
또한, 상기 충전재는 카올린과 팔리고르스카이트가 1:1의 중량부로 혼합되어 이루어지는 것이 가장 바람직한데, 상기와 같이 카올린과 팔리고르스카이트로 이루어진 충전재를 사용하게 되면, 인체에 해로운 각종 세균이나 바이러스, 곰팡이, 미세먼지, 악취 등의 냄새 성분과 오염물질 뿐만 아니라, 휘발성 유기화합물에 대해 우수한 흡착효과를 나타내면서도 기계적 강도가 우수한 흡착제 조성물을 제공할 수 있다.In addition, the filler is most preferably made by mixing kaolin and paligorskite in a 1:1 weight ratio. When a filler consisting of kaolin and paligorskite is used as described above, various bacteria or viruses harmful to the human body, It is possible to provide an adsorbent composition that exhibits excellent adsorption effect for volatile organic compounds as well as odor components and contaminants such as mold, fine dust, and odor, and has excellent mechanical strength.
상기의 성분으로 이루어지는 충전재의 함량이 53 중량% 미만이면 본 발명에 따른 흡착제 조성물의 기계적 강도 향상효과가 미미하며, 상기 충전재의 함량이 67 중량%를 초과하게 되면 상기의 효과는 크게 향상되지 않으면서 상대적으로 활성탄과 바인더의 함량이 지나치게 줄어들어 휘발성유기화합물의 흡착력이나 분해력 및 흡착제 조성물의 결속력의 저하로 인해 오히려 기계적 물성이 저하될 수 있다.If the content of the filler consisting of the above components is less than 53% by weight, the effect of improving the mechanical strength of the adsorbent composition according to the present invention is minimal, and if the content of the filler exceeds 67% by weight, the effect is not significantly improved. If the contents of activated carbon and binder are relatively reduced too much, the mechanical properties may be reduced due to a decrease in the adsorption or decomposition ability of volatile organic compounds and the binding strength of the adsorbent composition.
상기 바인더는 8 내지 12 중량%가 함유되며, 메틸셀룰로오스계 바인더로 이루어지는데, 메틸셀룰로오스, 카르복시메틸셀룰로오스 및 히드록시프로필메틸셀룰로오스로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것이 바람직하며, 본 발명을 통해 제조되는 캐니스터용 허니컴 흡착제 조성물을 구성하는 각 성분을 결속시켜 기계적 강도를 부여하는 역할을 한다.The binder contains 8 to 12% by weight and is made of a methylcellulose-based binder, preferably made of at least one selected from the group consisting of methylcellulose, carboxymethylcellulose, and hydroxypropylmethylcellulose, and is manufactured through the present invention. It serves to provide mechanical strength by binding each component constituting the honeycomb adsorbent composition for the canister.
상기 바인더의 함량이 8 중량% 미만이면, 상기 활성탄과 충전재의 결속력 저하로 인해 제조되는 캐니스터용 허니컴 흡착제의 기계적 물성이 저하될 수 있으며, 상기 바인더의 함량이 12 중량%를 초과하게 되면 상대적으로 활성탄 및 충전재의 함량이 지나치게 줄어줄어 흡착성능 및 기계적 강도가 저하될 뿐만 아니라, 허니컴 형태의 흡착제를 제조하는 과정에서 조성물의 점도가 지나치게 증가하여 가공성이 저하될 수 있다.If the binder content is less than 8% by weight, the mechanical properties of the honeycomb adsorbent for canisters may be reduced due to a decrease in the binding force between the activated carbon and the filler, and if the binder content exceeds 12% by weight, the activated carbon is relatively weak. And the content of the filler is excessively reduced, which not only reduces the adsorption performance and mechanical strength, but also causes the viscosity of the composition to increase excessively during the process of manufacturing the honeycomb-type adsorbent, which may reduce processability.
이하에서는, 본 발명에 따른 캐니스터용 허니컴 흡착제 조성물을 이용한 캐니스터용 허니컴 흡착제의 제조방법 및 그 제조방법으로 제조된 캐니스터용 허니컴 흡착제의 물성을 실시예를 들어 설명하기로 한다.Hereinafter, a method of manufacturing a honeycomb adsorbent for a canister using the honeycomb adsorbent composition for a canister according to the present invention and the physical properties of the honeycomb adsorbent for a canister manufactured by the manufacturing method will be described through examples.
<실시예 1><Example 1>
비표면적이 1,537.44m2/g인 활성탄 30kg, 바인더(메틸셀룰로오스) 10kg 및 충전재(카올린과 팔리고르스카이트가 1:1의 중량부로 혼합) 60kg을 교반기가 구비된 혼합장치에 투입하고 150rpm의 속도로 20분 동안 교반하여 캐니스터용 허니컴 흡착제 조성물을 제조하고, 제조된 조성물을 압출성형장치에 투입하고 압출성형하여 허니컴구조를 갖는 성형물로 성형하였다. 이를 전기로에 투입하고 질소분위기에 1000℃의 온도로 4시간 동안 열처리하여 캐니스터용 허니컴 흡착제를 제조하였다.30 kg of activated carbon with a specific surface area of 1,537.44 m 2 /g, 10 kg of binder (methylcellulose), and 60 kg of filler (kaolin and palygorskite mixed in a 1:1 weight ratio) were placed in a mixing device equipped with a stirrer and rotated at a speed of 150 rpm. A honeycomb adsorbent composition for a canister was prepared by stirring for 20 minutes, and the prepared composition was put into an extrusion molding device and extruded to form a molded product with a honeycomb structure. This was put into an electric furnace and heat treated at a temperature of 1000°C for 4 hours in a nitrogen atmosphere to prepare a honeycomb adsorbent for a canister.
<실시예 2><Example 2>
상기 실시예 1과 동일하게 진행하되, 비표면적이 1,840.09m2/g인 활성탄을 사용하여 캐니스터용 허니컴 흡착제를 제조하였다.A honeycomb adsorbent for a canister was manufactured in the same manner as in Example 1, except that activated carbon with a specific surface area of 1,840.09 m 2 /g was used.
<실시예 3><Example 3>
상기 실시예 1과 동일하게 진행하되, 비표면적이 2,127.9m2/g인 활성탄을 사용하여 캐니스터용 허니컴 흡착제를 제조하였다.A honeycomb adsorbent for a canister was manufactured in the same manner as in Example 1, except that activated carbon with a specific surface area of 2,127.9 m 2 /g was used.
<비교예 1><Comparative Example 1>
상기 실시예 1과 동일하게 진행하되, 비표면적이 1,201.5m2/g인 활성탄을 사용하여 캐니스터용 허니컴 흡착제를 제조하였다.A honeycomb adsorbent for a canister was manufactured in the same manner as in Example 1, except that activated carbon with a specific surface area of 1,201.5 m 2 /g was used.
<비교예 2><Comparative Example 2>
상기 실시예 1과 동일하게 진행하되, 비표면적이 2,402.6m2/g인 활성탄을 사용하여 캐니스터용 허니컴 흡착제를 제조하였다.A honeycomb adsorbent for a canister was manufactured in the same manner as in Example 1, except that activated carbon with a specific surface area of 2,402.6 m 2 /g was used.
상기 실시예 1 내지 3 및 비교예 1 내지 2를 통해 제조된 캐니스터용 허니컴 흡착제의 부탄 흡탈착성능 및 압축강도를 측정하여 아래 표 1에 나타내었다.The butane adsorption/desorption performance and compressive strength of the honeycomb adsorbents for canisters prepared through Examples 1 to 3 and Comparative Examples 1 to 2 were measured and shown in Table 1 below.
{단, 캐니스터용 허니컴 흡착제의 부탄 흡탈착성능은 ASTM D5228-92의 측정방법을 이용하였다.}{However, the butane adsorption and desorption performance of the honeycomb adsorbent for canisters was measured using the ASTM D5228-92 measurement method.}
(균열발생)Not measurable
(Crack occurrence)
상기 표 1에 나타낸 것처럼, 본 발명의 실시예 1 내지 3을 통해 제조된 캐니스터용 허니컴 흡착제는 부탄 흡탈착 성능과 압축강도가 캐니스터용으로 적용하기 위한 기준(BWC 0.07g/g 이상, 압축강도 10MPa)을 충족하는 것을 알 수 있다.As shown in Table 1, the honeycomb adsorbents for canisters manufactured through Examples 1 to 3 of the present invention have butane adsorption and desorption performance and compressive strength within the standards for application to canisters (BWC 0.07 g/g or more, compressive strength 10 MPa) ) can be seen to be satisfied.
반면, 비교예 1을 통해 제조된 허니컴 흡착제는 BWC를 만족하지 못하며, 비교예 2를 통해 제조된 허니컴 흡착제는 성형과정에서 흡착제에 균일이 발생하여 압축강도와 같은 기계적 물성이 기준을 충족하지 못하는 것을 알 수 있다.On the other hand, the honeycomb adsorbent prepared through Comparative Example 1 does not satisfy the BWC, and the honeycomb adsorbent prepared through Comparative Example 2 does not meet the standards for mechanical properties such as compressive strength due to uniformity in the adsorbent during the molding process. Able to know.
따라서, 본 발명에 따른 캐니스터용 허니컴 흡착제 조성물은 비표면적이 1500 내지 2300m2/g을 나타내는 활성탄을 사용하여 부탄 흡탈착 성능이 부여되고 압축강도와 같은 기계적 물성이 캐니스터용으로 사용하기에 적합한 특성을 나타내는 허니컴 흡착제를 제공한다.Therefore, the honeycomb adsorbent composition for canisters according to the present invention uses activated carbon with a specific surface area of 1500 to 2300 m 2 /g to provide butane adsorption and desorption performance and has mechanical properties such as compressive strength suitable for use in canisters. Provides a honeycomb adsorbent representing:
Claims (7)
상기 바인더는 메틸셀룰로오스계 바인더로 이루어지는 것을 특징으로 하는 캐니스터용 허니컴 흡착제 조성물.In claim 1,
A honeycomb adsorbent composition for a canister, wherein the binder is made of a methylcellulose-based binder.
상기 메틸셀룰로오스계 바인더는 메틸셀룰로오스, 카르복시메틸셀룰로오스 및 히드록시프로필메틸셀룰로오스로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것을 특징으로 하는 캐니스터용 허니컴 흡착제 조성물.In claim 6,
The methylcellulose-based binder is a honeycomb adsorbent composition for a canister, characterized in that it consists of one or more selected from the group consisting of methylcellulose, carboxymethylcellulose, and hydroxypropylmethylcellulose.
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