CN104803352A - Method for improving efficiency of production of hydrogen through steam reformation - Google Patents
Method for improving efficiency of production of hydrogen through steam reformation Download PDFInfo
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- CN104803352A CN104803352A CN201410040419.XA CN201410040419A CN104803352A CN 104803352 A CN104803352 A CN 104803352A CN 201410040419 A CN201410040419 A CN 201410040419A CN 104803352 A CN104803352 A CN 104803352A
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- steam
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Abstract
The invention relates to a method for improving the efficiency of production of hydrogen through steam reformation. The method adopting natural gas (NG) as a raw material to prepare hydrogen comprises the following steps: carrying out hydrogenation desulphurization on 91% NG, reacting the obtained NG with steam under high temperature catalysis conditions to form CO, H2 and parts of steam, allowing CO, H2 and parts of steam to go through a high temperature converter in order to convert CO and H2O into CO2 and H2 and decrease the temperature to 55DEG C, separating H2O through a system separator, preparing H2 through a PSA:H2 purifying device, arranging a natural gas component analyzer on a natural gas inlet pipeline, and detecting the content of impurity gases in the natural gas in an online real time manner. Compared with the prior art, the method has the advantages of momentary adjustment of the process according to the analysis result, and facilitation of timely and accurate calculation of the earning rate of an apparatus.
Description
Technical field
The present invention relates to a kind of method improving methane conversion efficiency, especially relate to a kind of method improving steam reformation hydrogen production efficiency.
Background technology
There is Hydrogen Unit SMR1 (steam reforming furnace) in existing factory, designed capacity: 18800Nm
3/ h gaseous hydrogen, raw material is Sweet natural gas, should containing other impurity as Hg, As, Cl, alkali, metal etc. in Sweet natural gas.
The output of company SMR device is according to gas material component design data, supply due to raw material is carried by the pipe network of natural gas companies, in gas distributing system, gas is delivered to Shanghai from the different places of production (mode such as transfering natural gas from the west to the east, Pinghu oil gas, LNG gasification), deliver to company's device again, this just causes the fluctuation of raw natural gas component, and just causing factory SMR device has difference in the data of the earning rate calculated and design.
In order to head it off, being originally carry out lab analysis by sampling metrology and measurement institute, comparing with the data of design after obtaining analytical results after one week, revised when calculating if any the earning rate that do not coexist.But feeding sample gas is sent outside to do and is analyzed organic shortcoming:
1. analytical results needs just can obtain after one week.
2. must analyze if any other factors such as load variations, like this number of times too.
3 samplings need manual operation, and gas has risk of leakage, there is dangerous factor.
4. send analysis outside costly, annual high cost affects corporate profit.
Summary of the invention
Object of the present invention be exactly provide to overcome defect that above-mentioned prior art exists a kind of at any time can the method for raising steam reformation hydrogen production efficiency that controls of the result adjusting process of reference analysis.
Object of the present invention can be achieved through the following technical solutions:
Improving a method for steam reformation hydrogen production efficiency, is raw material for preparing hydrogen with Sweet natural gas, take Sweet natural gas as raw material for preparing hydrogen, the NG with 91% after hydrogenation desulfurization with steam reaction, under high-temperature catalytic condition, be reacted into CO, H
2and containing some steam, through high temperature shift device by CO and H
2o changes into CO
2, H
2and be cooled to 55 DEG C, by system separators by H
2o is separated, and eventually passes PSA:H
2purification devices prepares H
2, the admission passage of Sweet natural gas installs gas component analyser, the content of impurities gas in on-line real-time measuremen Sweet natural gas additional.
Steam reforming furnace is under 100%NG load, and intake pressure is 14barg.
Steam reforming furnace is under 50%NG load, and intake pressure is 10 ~ 11barg.
Described gas component analyser is gas chromatographic analysis instrument.
Compared with prior art, the present invention has the following advantages:
1, at any time can the control of result adjusting process of reference analysis.
2, the earning rate of promptly and accurately calculating device is beneficial to.
3, risk and the labour intensity of artificial sample is avoided.
4, a large amount of expenses is saved.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment
Improving a method for steam reformation hydrogen production efficiency, take Sweet natural gas as raw material for preparing hydrogen, take Sweet natural gas as raw material for preparing hydrogen, the NG with 91% after hydrogenation desulfurization with steam reaction, under high-temperature catalytic condition, be reacted into CO, H
2and containing some steam, through high temperature shift device by CO and H
2o changes into CO
2, H
2and be cooled to 55 DEG C, by system separators by H
2o is separated, and eventually passes PSA:H
2purification devices prepares H
2, and gas component analyser is installed additional on the admission passage of Sweet natural gas, what adopt in the present embodiment is gas chromatographic analysis instrument (0-0001AI001 Sweet natural gas online gc), the content of impurities gas in on-line real-time measuremen Sweet natural gas.Steam reforming furnace is under 100%NG load, and intake pressure is 14barg.Steam reforming furnace is under 50%NG load, and intake pressure is 10 ~ 11barg.
The gaseous constituent of the Sweet natural gas detected is as shown in table 1.
Table 1 Sweet natural gas (raw material+fuel) (1.01325bar, 0 DEG C)
1) consumption of SMR1
2) SMR1 and SMR2 consumption summation
H
2S＝1Vppm＝1,5361mg/Nm3(1,01325bar，0℃)respect.1,4313mg/Nm3(20℃)。
Claims (4)
1. improving a method for steam reformation hydrogen production efficiency, take Sweet natural gas as raw material for preparing hydrogen, the NG with 91% after hydrogenation desulfurization with steam reaction, under high-temperature catalytic condition, be reacted into CO, H
2and containing some steam, through high temperature shift device by CO and H
2o changes into CO
2, H
2and be cooled to 55 DEG C, by system separators by H
2o is separated, and eventually passes PSA:H
2purification devices prepares H
2, be characterised in that, the admission passage of Sweet natural gas install additional gas component analyser, the content of impurities gas in on-line real-time measuremen Sweet natural gas.
2. a kind of method improving steam reformation hydrogen production efficiency according to claim 1, is characterized in that, steam reforming furnace is under 100%NG load, and intake pressure is 14barg.
3. a kind of method improving steam reformation hydrogen production efficiency according to claim 1, is characterized in that, steam reforming furnace is under 50%NG load, and intake pressure is 10 ~ 11barg.
4. a kind of method improving steam reformation hydrogen production efficiency according to claim 1, is characterized in that, described gas component analyser is gas chromatographic analysis instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410040419.XA CN104803352A (en) | 2014-01-27 | 2014-01-27 | Method for improving efficiency of production of hydrogen through steam reformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410040419.XA CN104803352A (en) | 2014-01-27 | 2014-01-27 | Method for improving efficiency of production of hydrogen through steam reformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104803352A true CN104803352A (en) | 2015-07-29 |
Family
ID=53688627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410040419.XA Pending CN104803352A (en) | 2014-01-27 | 2014-01-27 | Method for improving efficiency of production of hydrogen through steam reformation |
Country Status (1)
| Country | Link |
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| CN (1) | CN104803352A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629601A (en) * | 2015-11-02 | 2017-05-10 | 上海华林工业气体有限公司 | Methane steam reforming-based hydrogen production system with precise control of steam flow |
| CN106629599A (en) * | 2015-10-28 | 2017-05-10 | 上海华林工业气体有限公司 | Hydrogen production system by natural gas reforming |
| CN109467050A (en) * | 2018-12-29 | 2019-03-15 | 上海华林工业气体有限公司 | A kind of System and method for that HYCO hydrogen making by natural gas reformation is enhanced production capacities |
-
2014
- 2014-01-27 CN CN201410040419.XA patent/CN104803352A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629599A (en) * | 2015-10-28 | 2017-05-10 | 上海华林工业气体有限公司 | Hydrogen production system by natural gas reforming |
| CN106629601A (en) * | 2015-11-02 | 2017-05-10 | 上海华林工业气体有限公司 | Methane steam reforming-based hydrogen production system with precise control of steam flow |
| CN109467050A (en) * | 2018-12-29 | 2019-03-15 | 上海华林工业气体有限公司 | A kind of System and method for that HYCO hydrogen making by natural gas reformation is enhanced production capacities |
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Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |