CN202785635U - Adsorptive hydrogen purifying device - Google Patents
Adsorptive hydrogen purifying device Download PDFInfo
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- CN202785635U CN202785635U CN 201220452033 CN201220452033U CN202785635U CN 202785635 U CN202785635 U CN 202785635U CN 201220452033 CN201220452033 CN 201220452033 CN 201220452033 U CN201220452033 U CN 201220452033U CN 202785635 U CN202785635 U CN 202785635U
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Abstract
The utility model relates to an adsorptive hydrogen purifying device, and belongs to the technical field of production of hydrogen from waste gas. A waste gas inlet pipe is communicated with the bottoms of more than two treating columns which are mutually connected in parallel and used for adsorbing tetrahydrofuran at variable temperature; the tops of the more than two treating columns are communicated in parallel and then are communicated with an inlet of a gas-liquid separating buffer tank; a gas outlet of the gas-liquid separating buffer tank is communicated with the bottoms of more than two adsorbing columns for adsorbing carbon dioxide at variable pressure; the tops of the adsorbing columns are communicated with a hydrogen buffer tank for outputting purified hydrogen; valves are arranged at the bottoms and on the tops of the treating columns, the gas-liquid separating buffer tank, the adsorbing columns and the hydrogen buffer tank; and the operating condition of the adsorptive hydrogen purifying device are controlled and regulated by a controller. The adsorptive hydrogen purifying device has the advantages of simple process, convenience in operation, wide regulating range and high processing capacity; the hydrogen purity can reach the national standard 99.999%; and the adsorptive hydrogen purifying device is a waste hydrogen purifying device applicable to a hydrogen producing process.
Description
Technical field
The utility model belongs to waste gas hydrogen producing technology field, refers in particular to a kind of absorption method hydrogen purification device.
Background technology
At present, in the process of hydrogen gas production, adopt the method for removing one to one the impurity in the waste gas, also there are the impurity such as carbonic acid gas and tetrahydrofuran (THF) in the raw material waste gas, their molecular polarity is different, utilizes the hydrogen content of conventional device fabrication to be difficult to be up to state standards.
Summary of the invention
The purpose of this utility model provides the absorption method hydrogen purification device that a kind of technical process is simple, easy to operate, regulation range is wide, processing power is large, hydrogen purity reaches GB 99.999%.
The purpose of this utility model is achieved in that
A kind of absorption method hydrogen purification device, exhaust inlet pipe is communicated with the bottom inflow pipe of the treating column of the Temp .-changing adsorption tetrahydrofuran (THF) that is connected parallel with one another more than two, be communicated with the import of gas-liquid separation surge tank after the connection in parallel of the top escape pipe of two above treating columns, the air outlet of gas-liquid separation surge tank is communicated with the bottom inflow pipe of the adsorption tower of plural pressure-variable adsorption carbonic acid gas, hydrogen after externally output is purified behind the top escape pipe connection hydrogen gas buffer of plural adsorption tower, at each treating column, the gas-liquid separation surge tank, be provided with valve on the bottom inlet pipe of adsorption tower and hydrogen gas buffer and the top exit pipe, at each treating column, be provided with thermometer on the top exit pipe of adsorption tower and hydrogen gas buffer, tensimeter, under meter one or a combination set of, with controller the running status of equipment is carried out complete monitoring and middle control adjusting, and control section treating column and adsorption tower operation, partially disposed tower and adsorption tower regeneration realize rotating and loop cycle for the treatment of column and adsorption tower work and regeneration.
Above-mentioned controller is the DCS automation control system.
Above-mentioned treating column has two, and described adsorption tower has six.
Hydrogen in the inlet pipeline of above-mentioned useless hydrogen contains the foreign matter contents such as carbonic acid gas, tetrahydrofuran (THF), the hydrogen content in the hydrogen outlet pipeline 〉=99.999%.
Be communicated with according to this stripping gas surge tank and burning gas surge tank on the bottom inflow pipe of above-mentioned adsorption tower, the top of burning gas surge tank is communicated with burner by conduit, between the bottom inflow pipe and stripping gas surge tank of adsorption tower, be provided with the valve by controller control between stripping gas surge tank and the burning gas surge tank.
The utility model compared to existing technology outstanding and useful technique effect is:
1, the utility model is by reclaiming chemical enterprise waste gas (containing the impurity such as carbon dioxide content, tetrahydrofuran (THF) in the hydrogen), utilize sorbent material that the selectivity of different adsorbates and the sorbent material loading capacity to adsorbate is changed and discrepant characteristic with temperature and pressure, these impurity of desorption and make sorbent material obtain regeneration under the impurity composition of absorption in the raw material, the low-pressure low-temperature under high pressure and high temperature, purify and extract the device of pure hydrogen through adsorption unit, thereby further improve and the structure and the technological layer that have promoted making pure hydrogen.
2, of the present utility model under normal temperature and transformation condition, utilize the method for multitower circulation absorption to extract pure hydrogen, hydrogen purity reaches GB 99.999%.
3, production technique of the present utility model is simple, easy to operate, regulation range is wide, processing power is large.
4, the utility model is applicable to hydrogen and produces useless hydrogen purification device in the process.
Description of drawings
Fig. 1 is structural principle synoptic diagram of the present utility model.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1:
A kind of absorption method hydrogen purification device, exhaust inlet pipe 10 is communicated with the bottom inflow pipe 11 of the treating column A of the Temp .-changing adsorption tetrahydrofuran (THF) that is connected parallel with one another more than two, the top escape pipe of two above treating column A was communicated with the import of gas-liquid separation surge tank B after 12 in parallel connections, the air outlet of gas-liquid separation surge tank B is communicated with the bottom inflow pipe 13 of the adsorption tower C of plural pressure-variable adsorption carbonic acid gas, the top escape pipe 14 of plural adsorption tower C passes through the conduit 15 external hydrogen of exporting after purifying after being communicated with hydrogen gas buffer D, at each treating column A, gas-liquid separation surge tank B, the bottom inlet pipe 11 of adsorption tower C and hydrogen gas buffer D, 13 and top exit pipe 12,14, be provided with valve 20 on 15, at each treating column A, gas-liquid separation surge tank B, the top exit pipe 12 of adsorption tower C and hydrogen gas buffer D, 14, be provided with thermometer on 15, tensimeter, under meter one or a combination set of, with controller the running status of equipment is carried out complete monitoring and middle control adjusting, and control section treating column A and adsorption tower C operation, partially disposed tower A and adsorption tower C regenerate, and realize treating column A and adsorption tower C work and rotating and loop cycle of regenerating.
Above-mentioned controller is the DCS automation control system.
Above-mentioned treating column A has two, and described adsorption tower C has six.
Hydrogen in the inlet pipeline 10 of above-mentioned useless hydrogen contains the impurity such as carbonic acid gas and tetrahydrofuran (THF), the hydrogen content in the hydrogen outlet pipeline 〉=99.999%.
Be communicated with according to this stripping gas surge tank E and burning gas surge tank F on the bottom inflow pipe 13 of above-mentioned adsorption tower C, the top of burning gas surge tank F is communicated with burner by conduit 16, between the bottom inflow pipe 13 of adsorption tower C and the stripping gas surge tank E, be provided with the valve 20 of being controlled by controller between stripping gas surge tank E and the burning gas surge tank F.
Principle of work of the present utility model:
Tail gas is 2.0MpaG at pressure, temperature is to enter tetrahydrofuran (THF) treating column A(after the normal temperature also to claim the tetrahydrofuran (THF) treater), remove and enter pressure-variable adsorption after the impurity such as most of tetrahydrofuran (THF) and carry hydrogen partial, enter adsorption tower C from adsorption tower C bottom, obtain hydrogen from the top.
The principle of tetrahydrofuran (THF) processor adopting Temp .-changing adsorption is removed impurity.Temperature swing adsorption system adopts 2 treating columns, and wherein any time always has 1 to be in adsorbed state, guarantees continuous imurity-removal, and 1 is in reproduced state in addition, realizes the regeneration of tetrahydrofuran (THF) treating column A.Each tetrahydrofuran (THF) treating column A once all need experience absorption, reverse step-down, intensification in the circulation, the five steps such as cool off, boost.
The adsorption tower C of pressure-variable adsorption carbonic acid gas adopts 5-1-3/P(6 adsorption tower) normal pressure desorb mode of operation, each adsorption tower C in circulation once, all need experience absorption, one all fall, two all fall, three all fall, along put, inverse put, flushing, three all rise, two equal equal liters and 11 steps such as fill eventually of liter.Whole process is all come regulating and controlling by automatically controlled valve.These valves operate by regulated procedure, make the conversion of constantly purifying of pressure swing adsorption technique process, generate standard hydrogen.
Above-described embodiment is preferred embodiment of the present utility model only, is not to limit according to this protection domain of the present utility model, so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.
Claims (4)
1. absorption method hydrogen purification device, it is characterized in that: exhaust inlet pipe is communicated with the bottom inflow pipe of the treating column of the Temp .-changing adsorption tetrahydrofuran (THF) that is connected parallel with one another more than two, be communicated with the import of gas-liquid separation surge tank after the connection in parallel of the top escape pipe of two above treating columns, the air outlet of gas-liquid separation surge tank is communicated with the bottom inflow pipe of the adsorption tower of plural pressure-variable adsorption carbonic acid gas, hydrogen after externally output is purified behind the top escape pipe connection hydrogen gas buffer of plural adsorption tower, at each treating column, be provided with valve on the bottom inlet pipe of adsorption tower and hydrogen gas buffer and the top exit pipe, at each treating column, the gas-liquid separation surge tank, be provided with thermometer on the top exit pipe of adsorption tower and hydrogen gas buffer, tensimeter, under meter one or a combination set of, with controller the running status of equipment is carried out complete monitoring and middle control adjusting, and control section treating column and adsorption tower operation, partially disposed tower and adsorption tower regeneration realize rotating and loop cycle for the treatment of column and adsorption tower work and regeneration.
2. a kind of absorption method hydrogen purification device according to claim 1, it is characterized in that: described controller is the DCS automation control system.
3. a kind of absorption method hydrogen purification device according to claim 1, it is characterized in that: described treating column has two, and described adsorption tower has six.
4. each described a kind of absorption method hydrogen purification device according to claim 1-3, it is characterized in that: be communicated with according to this stripping gas surge tank and burning gas surge tank on the bottom inflow pipe of described adsorption tower, the top of burning gas surge tank is communicated with burner by conduit, between the bottom inflow pipe and stripping gas surge tank of adsorption tower, be provided with the valve by controller control between stripping gas surge tank and the burning gas surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220452033 CN202785635U (en) | 2012-09-06 | 2012-09-06 | Adsorptive hydrogen purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220452033 CN202785635U (en) | 2012-09-06 | 2012-09-06 | Adsorptive hydrogen purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202785635U true CN202785635U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220452033 Expired - Fee Related CN202785635U (en) | 2012-09-06 | 2012-09-06 | Adsorptive hydrogen purifying device |
Country Status (1)
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| CN (1) | CN202785635U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600752A (en) * | 2016-03-29 | 2016-05-25 | 河北天善生物技术有限公司 | Method and system for purifying hydrogen gas in biomass gas |
| CN109437106A (en) * | 2018-12-26 | 2019-03-08 | 浙江海畅气体有限公司 | A kind of hydrogen purification device |
| CN111482050A (en) * | 2020-06-15 | 2020-08-04 | 上海优华系统集成技术股份有限公司 | Hydrogen purification device and method |
| CN113562697A (en) * | 2021-08-26 | 2021-10-29 | 上海优华系统集成技术股份有限公司 | Hydrogen purification system adapting to wide flow fluctuation |
-
2012
- 2012-09-06 CN CN 201220452033 patent/CN202785635U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600752A (en) * | 2016-03-29 | 2016-05-25 | 河北天善生物技术有限公司 | Method and system for purifying hydrogen gas in biomass gas |
| CN105600752B (en) * | 2016-03-29 | 2018-04-17 | 河北天善生物技术有限公司 | A kind of method of purification and its system for being used for hydrogen in biological fuel gas |
| CN109437106A (en) * | 2018-12-26 | 2019-03-08 | 浙江海畅气体有限公司 | A kind of hydrogen purification device |
| CN111482050A (en) * | 2020-06-15 | 2020-08-04 | 上海优华系统集成技术股份有限公司 | Hydrogen purification device and method |
| CN113562697A (en) * | 2021-08-26 | 2021-10-29 | 上海优华系统集成技术股份有限公司 | Hydrogen purification system adapting to wide flow fluctuation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150906 |
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| EXPY | Termination of patent right or utility model |