JPH03169324A - Method for recovering and fixing carbon dioxide - Google Patents
Method for recovering and fixing carbon dioxideInfo
- Publication number
- JPH03169324A JPH03169324A JP1307744A JP30774489A JPH03169324A JP H03169324 A JPH03169324 A JP H03169324A JP 1307744 A JP1307744 A JP 1307744A JP 30774489 A JP30774489 A JP 30774489A JP H03169324 A JPH03169324 A JP H03169324A
- Authority
- JP
- Japan
- Prior art keywords
- carbon dioxide
- seawater
- algae
- exhaust gas
- dioxide gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 37
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 8
- 241000195493 Cryptophyta Species 0.000 claims abstract description 19
- 239000013535 sea water Substances 0.000 claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 8
- 230000003100 immobilizing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 description 7
- 235000011089 carbon dioxide Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は燃焼排ガス中の炭酸ガスを分離・回収して固定
化する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for separating, recovering and fixing carbon dioxide in combustion exhaust gas.
従来、排ガス中の一部の炭酸ガスを濃縮し、ガス状及び
液状及びドライアイス化したり、該ガスを出発原料とし
て尿素・安息香酸を製造していたが、１９８７年におけ
る炭酸ガスの上記用途の市場は１００万トン／年であっ
た。一方、国内で排出している炭酸ガスの総量は７８．
０００万トン／年であり、実質的には当該ガスの回収を
ほとんど行っておらず、そのまま大気へ放出していた。Conventionally, some carbon dioxide gas in exhaust gas was concentrated and converted into gaseous, liquid, and dry ice, and urea and benzoic acid were produced using the gas as a starting material, but in 1987, the above uses of carbon dioxide gas were The market was 1 million tons/year. On the other hand, the total amount of carbon dioxide emitted in Japan is 78.
0 million tons/year, and virtually no gas was recovered and was released into the atmosphere as is.
すなわち、現在の大気中の炭酸ガス濃度の増加は、化石
燃料の燃焼により生ずるものが大半で、特に発電所や一
般産業用ボイラ、燃焼炉等固定発生源が国内の当該発生
量の６０％を占めている。In other words, most of the current increase in the concentration of carbon dioxide in the atmosphere is caused by the combustion of fossil fuels, with stationary sources such as power plants, general industrial boilers, and combustion furnaces accounting for 60% of the amount emitted in Japan. is occupying.
これらの大気中へ放出された炭酸ガスの１７２は海洋等
に吸収され、残りは大気中に残存するこどや、近年の燃
焼排ガスの量の増加とあいまって、海洋等の吸収では追
いつかない状態にある。172% of the carbon dioxide released into the atmosphere is absorbed by the ocean, and the rest remains in the atmosphere. Combined with the recent increase in the amount of combustion exhaust gas, absorption by the ocean cannot keep up. It is in.
従って大気中の炭酸ガス量が増加し、近年、温室効果と
呼ばれている大気温度の上昇が問題視されることとなっ
た。Therefore, the amount of carbon dioxide gas in the atmosphere has increased, and in recent years, the rise in atmospheric temperature, known as the greenhouse effect, has become a problem.
本発明は排ガス中の大量の炭酸ガスを回収・固定化する
ことにより、地球規模の温室効果を低減する方法を提案
するものである。The present invention proposes a method of reducing the global greenhouse effect by collecting and fixing a large amount of carbon dioxide gas in exhaust gas.
本発明は燃焼排ガス中の炭酸ガスを回収する方法におい
て、該排ガス中の炭酸ガスを海水に吸収させることによ
り回収し、炭酸ガスを吸収した海水を藻培養池に供給す
ることにより、海水中の炭酸ガスを藻に固定化すること
を特徴とする炭酸ガスの回収及び固定化する方法である
。The present invention provides a method for recovering carbon dioxide gas from combustion exhaust gas, in which the carbon dioxide gas in the exhaust gas is recovered by being absorbed into seawater, and the seawater that has absorbed carbon dioxide gas is supplied to an algae cultivation pond. This is a method for collecting and immobilizing carbon dioxide gas, which is characterized by immobilizing carbon dioxide gas on algae.
藻類としては海洋性微細藻類が炭酸ガス固定化材料とし
て好ましい。微細藻類は数μｍ〜数十μｍの大きさで、
海水に溶解した炭酸ガスと太陽光線により光合戊反応を
生じて、炭酸ガス中の炭素を藻体戊分の構戒源として固
定する。As the algae, marine microalgae are preferable as the carbon dioxide fixing material. Microalgae are several micrometers to tens of micrometers in size,
Carbon dioxide dissolved in seawater and sunlight cause a photosynthetic reaction, and the carbon in the carbon dioxide is fixed as a source of algae formation.
微細藻類の炭酸同化反応速度は他の植物に比較して非常
に速く、大量の炭酸ガスの固定化に有効である。The carbon assimilation reaction rate of microalgae is extremely fast compared to other plants, and they are effective in fixing large amounts of carbon dioxide.
本発明の一実施例を第１図によって説明する。 An embodiment of the present invention will be described with reference to FIG.
第１図は本発明の炭酸ガスの固定化方法の構戒を示す概
要図である。FIG. 1 is a schematic diagram showing the structure of the method for fixing carbon dioxide gas of the present invention.
燃焼炉１の排ガスはブロヮ２を出た後、吸収塔３に送ら
れる。こ＼で排ガス中の炭酸ガスが海水に吸収される。After exiting the blower 2, the exhaust gas from the combustion furnace 1 is sent to the absorption tower 3. This causes carbon dioxide gas in the exhaust gas to be absorbed by seawater.
吸収液はボンプ４により藻培養池５に供給される。炭酸
ガスの一部を吸収された排ガスは該吸収塔３の塔頂より
人気に放出される。該藻培養池５では藻が培養され吸収
液中の炭酸ガスが炭酸同化作用で藻体に固定化される。The absorption liquid is supplied to the algae culture pond 5 by the pump 4. The exhaust gas that has absorbed a portion of carbon dioxide gas is discharged from the top of the absorption tower 3. In the algae culture pond 5, algae are cultivated, and carbon dioxide gas in the absorption liquid is immobilized on the algae bodies by carbon dioxide assimilation.
ついで培養池５で培養した藻を含む海水はボンブ６で脱
水機７に送られて海水を脱水し、さらに必要に応じて図
示省略の乾燥炉を経て乾燥され、乾燥藻８として貯蔵も
しくは他用途（燃利、有価物回収）に使用される。Next, the seawater containing the algae cultivated in the culture pond 5 is sent to a dehydrator 7 using a bomb 6 to dehydrate the seawater, and if necessary, it is dried through a drying oven (not shown), and stored as dried algae 8 or used for other purposes. (Used for fuel, recovery of valuables).
一方、脱水機７で発生した海水は吸収塔３に送られて循
環使用する。On the other hand, seawater generated in the dehydrator 7 is sent to the absorption tower 3 for circulation.
以上の構戊の炭酸ガス固定化装置を使用した具体例を下
記に示す。A specific example using the carbon dioxide fixing device with the above structure is shown below.
物質収支例を以下に示す。An example of material balance is shown below.
（１）発電所規模 ： ２２０ ＭＷ（石炭焚き）ＣＤ
２発生量： １９０ Ｔｏｎ／ｈ
？ガス量 二６９万Ｎｍ３／ｈ
ＣＯ２濃度 ： １３．８３ ｖａｔ，％（２）吸収塔
Ｃ０２回収量： ８．９ Ｔｏｎ／ｈ
海水使用量： ５２．８００ ｍ’／ｈＣＯ■回収率＝
４．７％
（３）藻培養池
藻培養速度：５０ｇ−ｄｒｙ／ｍ２・ｄａｙ藻生産量：
４． ５４ Ｔｏｎ／ｈ
〔発明の効果〕
本発明は排ガス中の炭酸ガスを分離するのみでなく、固
定化することにより炭酸ガスの大気中への再放出を抑制
するものであり、工業的に有益であるばかりでなく、地
球規模的にも有効である。(1) Power plant scale: 220 MW (coal-fired) CD
2 Generation amount: 190 Ton/h? Gas amount 2.69 million Nm3/h CO2 concentration: 13.83 vat, % (2) Absorption tower CO2 recovery amount: 8.9 Ton/h Seawater consumption: 52.800 m'/hCO recovery rate =
4.7% (3) Algae culture Pond algae culture rate: 50g-dry/m2・day Algae production:
4. 54 Ton/h [Effect of the Invention] The present invention not only separates carbon dioxide gas from exhaust gas, but also fixes it to suppress re-emission of carbon dioxide gas into the atmosphere, which is industrially useful. Not only is it effective, but it is also effective on a global scale.
第１図は本発明の一実施例のフローを示す図である。 ｌ 第１ 図 ８一 FIG. 1 is a diagram showing the flow of one embodiment of the present invention. l 1st figure 81
Claims (1)
ガス中の炭酸ガスを海水に吸収させることにより回収し
、炭酸ガスを吸収した海水を藻培養池に供給することに
より、海水中の炭酸ガスを藻に固定化することを特徴と
する炭酸ガスの回収及び固定化する方法。In a method for recovering carbon dioxide gas in combustion exhaust gas, the carbon dioxide gas in the exhaust gas is recovered by being absorbed into seawater, and the carbon dioxide gas in the seawater is recovered by supplying the seawater that has absorbed carbon dioxide gas to an algae culture pond. A method for collecting and immobilizing carbon dioxide gas, characterized by immobilizing it on algae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1307744A JPH03169324A (en) | 1989-11-29 | 1989-11-29 | Method for recovering and fixing carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1307744A JPH03169324A (en) | 1989-11-29 | 1989-11-29 | Method for recovering and fixing carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03169324A true JPH03169324A (en) | 1991-07-23 |
Family
ID=17972745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1307744A Pending JPH03169324A (en) | 1989-11-29 | 1989-11-29 | Method for recovering and fixing carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03169324A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028018A1 (en) | 1997-11-27 | 1999-06-10 | Umweltschutz Nord Gmbh & Co. | Method and device for reducing the concentration of ingredients in a gas and in a liquid |
| NL1016048C2 (en) * | 2000-08-29 | 2002-03-01 | Theodoor Henri Enzlin | Electricity generating process, by burning seaweed grown by hydroculture at sea and returning the combustion gases to the seawater |
| WO2007116242A1 (en) * | 2006-04-27 | 2007-10-18 | See Chun Sui | Zero emission device |
| WO2009015051A1 (en) * | 2007-07-25 | 2009-01-29 | Chevron U.S.A. Inc. | Process for integrating conversion of hydrocarbonaceous assets and photobiofuels production using an absorption tower |
| GB2460154A (en) * | 2008-05-14 | 2009-11-25 | Univ Aston | Biomass processing |
| ITMI20081802A1 (en) * | 2008-10-13 | 2010-04-14 | B T Biomedical Tissues S R L | PROCEDURE FOR THE PRODUCTION OF BIOPETROLIO WHICH PROVIDES THE USE OF CO2 |
| WO2013134953A1 (en) * | 2012-03-16 | 2013-09-19 | 绿鼎生技股份有限公司 | Method and system for carbon dioxide fixation by combining shellfish or coral breeding |
-
1989
- 1989-11-29 JP JP1307744A patent/JPH03169324A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028018A1 (en) | 1997-11-27 | 1999-06-10 | Umweltschutz Nord Gmbh & Co. | Method and device for reducing the concentration of ingredients in a gas and in a liquid |
| NL1016048C2 (en) * | 2000-08-29 | 2002-03-01 | Theodoor Henri Enzlin | Electricity generating process, by burning seaweed grown by hydroculture at sea and returning the combustion gases to the seawater |
| WO2007116242A1 (en) * | 2006-04-27 | 2007-10-18 | See Chun Sui | Zero emission device |
| WO2009015051A1 (en) * | 2007-07-25 | 2009-01-29 | Chevron U.S.A. Inc. | Process for integrating conversion of hydrocarbonaceous assets and photobiofuels production using an absorption tower |
| US8076122B2 (en) | 2007-07-25 | 2011-12-13 | Chevron U.S.A. Inc. | Process for integrating conversion of hydrocarbonaceous assets and photobiofuels production using an absorption tower |
| GB2460154A (en) * | 2008-05-14 | 2009-11-25 | Univ Aston | Biomass processing |
| US8658414B2 (en) | 2008-05-14 | 2014-02-25 | Aston University | Biomass processing |
| ITMI20081802A1 (en) * | 2008-10-13 | 2010-04-14 | B T Biomedical Tissues S R L | PROCEDURE FOR THE PRODUCTION OF BIOPETROLIO WHICH PROVIDES THE USE OF CO2 |
| WO2013134953A1 (en) * | 2012-03-16 | 2013-09-19 | 绿鼎生技股份有限公司 | Method and system for carbon dioxide fixation by combining shellfish or coral breeding |
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