CN204873823U - Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus - Google Patents
Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus Download PDFInfo
- Publication number
- CN204873823U CN204873823U CN201520530147.1U CN201520530147U CN204873823U CN 204873823 U CN204873823 U CN 204873823U CN 201520530147 U CN201520530147 U CN 201520530147U CN 204873823 U CN204873823 U CN 204873823U
- Authority
- CN
- China
- Prior art keywords
- gas
- adsorber
- surge tank
- liquefied natural
- resolution
- 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.)
- Expired - Fee Related
Links
- 239000007789 gas Substances 0.000 title claims abstract description 119
- 239000001257 hydrogen Substances 0.000 title claims abstract description 40
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 40
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 15
- 239000000571 coke Substances 0.000 title abstract 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- 239000002594 sorbent Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 239000003345 natural gas Substances 0.000 claims description 8
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 11
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 238000005352 clarification Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 15
- 239000012535 impurity Substances 0.000 description 6
- 230000000274 adsorptive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model provides a coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus, belongs to gas separation and clarification plant technical field for rich hydrogen tail gas to coke oven gas system liquefied natural gas separates the utilization. Its technical scheme is: the feed gas heater is connected with rich hydrogen tail gas output pipeline, and the gas outlet of feed gas heater is connected through the air inlet of pipeline with the adsorber bottom, and the adsorber intussuseption is filled with the adsorbent, and the top of adsorber is connected with product gas buffer tank, the lower part of adsorber with separate the gassing buffer tank and be connected, product gas buffer tank, separate the gassing buffer tank and be connected with product gas collection device reconciliation gassing collection device respectively. The utility model discloses an advance pressure swing adsorption technique is carried out pressure swing adsorption to liquefied natural gas's rich hydrogen tail gas and is handled, therefrom isolate high -purity hydrogen and recycle, greatly increased the economic benefits of enterprise, avoided the direct environmental pollution who diffuses or burn and cause to the atmosphere of rich hydrogen tail gas simultaneously, apparent social has.
Description
Technical field
The utility model relates to a kind of device processed the hydrogen rich off gas of coke-oven gas preparing liquefied natural gas, belongs to gas delivery and purification technology field.
Background technology
In the production process of coke-oven gas preparing liquefied natural gas, can produce with natural gas liquids the tail gas being rich in hydrogen.The processing mode of traditional by-product tail gas for natural gas liquids is mainly directly to airborne release with carry out post combustion emission; these processing modes waste valuable resource on the one hand; pollute atmospheric environment on the other hand, the needs of the Economic Development that has been far from suitable and the theory of increasing conservation of nature environment.Meanwhile, pressure swing adsorption is developed rapidly in recent years, pressure swing adsorption process is called for short PSA, it is the technological process that gaseous mixture is purified, this technique is to based on the physical adsorption of gas molecule by porous solid material (sorbent material) interior surface, the reversible physical adsorption process worked between two kinds of pressure states, it under high pressure has larger adsorptive power according to impurities from mixed gas component, under low pressure there is again less adsorptive power, desirable component N2 is then the principle that high pressure or low pressure all have less adsorptive power.Under high pressure, increase impurities partial pressure to be tried one's best many being adsorbed on sorbent material, thus reach high product purity.Desorb or the regeneration of sorbent material are under low pressure carried out, and reduce the residual volume of impurity on sorbent material, so that at next circulation adsorbing contaminant again as far as possible.According to pressure-variable adsorption ratio juris; if the hydrogen rich off gas of natural gas liquids can be processed by pressure swing adsorption process; highly purified hydrogen is extracted from hydrogen rich off gas; namely the economic worth of hydrogen rich off gas can fully be excavated; the effect of environment protection can be reached again, realize the win-win situation of economic benefit and social benefit.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of hydrogen rich off gas treatment unit of coke-oven gas preparing liquefied natural gas, this device can carry out pressure-variable adsorption process to the hydrogen rich off gas produced in the liquefaction process of natural gas liquids, therefrom be separated high-purity hydrogen, to increase the performance of enterprises, avoid the environmental pollution of diffusing to air or burn processing causes simultaneously.
The technical scheme solved the problems of the technologies described above is:
A kind of hydrogen rich off gas treatment unit of coke-oven gas preparing liquefied natural gas, it comprises unstripped gas well heater, adsorber, gas product surge tank, resolution gas surge tank, the inlet mouth of unstripped gas well heater is connected with the hydrogen rich off gas output channel of natural gas liquids, the air outlet of unstripped gas well heater is connected with the inlet mouth of absorber bottoms by pipeline, sorbent material is filled with in adsorber, the top of adsorber has hydrogen discharge pipe road to be connected with gas product surge tank, the bottom of adsorber has resolution gas discharge line to be connected with resolution gas surge tank, gas product surge tank, resolution gas surge tank is connected with resolution gas collection device with gas product collection device respectively.
The hydrogen rich off gas treatment unit of above-mentioned coke-oven gas preparing liquefied natural gas, described adsorber is 3-8,3-8 adsorber is in parallel, be connected with the outlet pipe of unstripped gas well heater after their intake ducting parallel connection, their gas product discharge line, resolution gas discharge line are in parallel to be respectively connected with the intake ducting of gas product surge tank, resolution gas surge tank afterwards.
The hydrogen rich off gas treatment unit of above-mentioned coke-oven gas preparing liquefied natural gas, described adsorber is filled with sorbent material, and adsorber and multistage pressure pipeline, along putting pipeline, inverse put pipeline, flushing pipeline be connected.
The beneficial effects of the utility model are:
The utility model changes the hydrogen rich off gas treatment process of existing coke-oven gas preparing liquefied natural gas, adopt advanced pressure swing adsorption, the hydrogen rich off gas of natural gas liquids is carried out pressure-variable adsorption process, therefrom isolate high-purity hydrogen, the purity of high-purity hydrogen reaches 99.999% high level, high-purity hydrogen recycles after steel cylinder is filling, considerably increase the economic benefit of enterprise, avoid the environmental pollution that hydrogen rich off gas diffuses directly to air or burn processing causes simultaneously, there is significant social benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, mark is as follows: unstripped gas entrance 1, unstripped gas well heater 2, adsorber 3, gas product surge tank 4, resolution gas surge tank 5, gas product collection device 6, resolution gas collection device 7.
Embodiment
The utility model is made up of unstripped gas well heater 2, adsorber 3, gas product surge tank 4, resolution gas surge tank 5, gas product collection device 6, resolution gas collection device 7.
Show in figure, the inlet mouth of unstripped gas well heater 2 is connected with the hydrogen rich off gas output channel of natural gas liquids, unstripped gas enters into unstripped gas well heater 2 from unstripped gas entrance 1, and unstripped gas enters adsorber 3 and carries out hydrogen purification after unstripped gas well heater 2 is heated to 20 ~ 40 DEG C.
Show in figure, the air outlet of unstripped gas well heater 2 is connected with the inlet mouth bottom adsorber 3 by pipeline, the top of adsorber 3 has hydrogen discharge pipe road to be connected with gas product surge tank 4, the bottom of adsorber 3 has resolution gas discharge line to be connected with resolution gas surge tank 5, and gas product surge tank 4, resolution gas surge tank 5 are connected with resolution gas collection device 7 with gas product collection device 6 respectively.
Show in figure, adsorber is 3-5, and 3-5 adsorber is in parallel, and adsorber is filled with sorbent material, adsorber and multistage pressure pipeline, suitablely put pipeline, inverse put pipeline, flushing pipeline be connected.The embodiment of the present utility model shown in figure adopts 5 adsorbers 3 to carry out pressure-variable adsorption.
Working process of the present utility model is as follows:
Unstripped gas, after unstripped gas well heater 2, passes through and enters adsorber 3 purifying hydrogen of hydrogen at 20 ~ 40 DEG C.Unstripped gas enters in adsorber 3 bottom adsorber 3, and impurity composition is removed by adsorbent, and difficult absorbed component hydrogen is gone out from adsorber 3 top and obtained product hydrogen.In adsorber 3, each adsorber experiences absorption successively at different time, multistage pressure equilibrium is fallen, along putting, inverse put, flushing, multistage pressure equilibrium rise and the step such as final boosting.Inverse put step discharges the partial impurities component of occlusion in adsorber 3, and remaining impurity is by the complete desorb of rinse step.Resolution gas surge tank 5 is entered at the gas of inverse put pressure higher stage in early stage, device without inverse put or purge gas less time send battery limit (BL) by variable valve, the higher gas of inverse put pressure in early stage after resolution gas surge tank 5 cushions by variable valve together with purge gas about 0.03MPa, 20 ~ 40 DEG C send battery limit (BL).
Claims (3)
1. the hydrogen rich off gas treatment unit of a coke-oven gas preparing liquefied natural gas, it is characterized in that: it comprises unstripped gas well heater (2), adsorber (3), gas product surge tank (4), resolution gas surge tank (5), the inlet mouth of unstripped gas well heater (2) is connected with the hydrogen rich off gas output channel of natural gas liquids, the air outlet of unstripped gas well heater (2) is connected by the inlet mouth of pipeline with adsorber (3) bottom, adsorber is filled with sorbent material in (3), the top of adsorber (3) has hydrogen discharge pipe road to be connected with gas product surge tank (4), the bottom of adsorber (3) has resolution gas discharge line to be connected with resolution gas surge tank (5), gas product surge tank (4), resolution gas surge tank (5) is connected with resolution gas collection device (7) with gas product collection device (6) respectively.
2. the hydrogen rich off gas treatment unit of coke-oven gas preparing liquefied natural gas according to claim 1, it is characterized in that: described adsorber (3) is 3-5,3-5 adsorber (3) is in parallel, be connected with the outlet pipe of unstripped gas well heater (2) after their intake ducting parallel connection, be connected with the intake ducting of gas product surge tank (4), resolution gas surge tank (5) after their gas product discharge line, resolution gas discharge line difference are in parallel.
3. the hydrogen rich off gas treatment unit of coke-oven gas preparing liquefied natural gas according to claim 2, it is characterized in that: described adsorber (3) is filled with sorbent material, adsorber (3) and multistage pressure pipeline, along putting pipeline, inverse put pipeline, flushing pipeline be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520530147.1U CN204873823U (en) | 2015-07-21 | 2015-07-21 | Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520530147.1U CN204873823U (en) | 2015-07-21 | 2015-07-21 | Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204873823U true CN204873823U (en) | 2015-12-16 |
Family
ID=54818222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520530147.1U Expired - Fee Related CN204873823U (en) | 2015-07-21 | 2015-07-21 | Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204873823U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437104A (en) * | 2018-12-27 | 2019-03-08 | 浙江海畅气体有限公司 | A kind of device of quick Production of High-purity Hydrogen |
| CN109666520A (en) * | 2019-01-28 | 2019-04-23 | 安庆市泰发能源科技有限公司 | Butane dehydrogenation hydrogen rich off gas recycle device |
-
2015
- 2015-07-21 CN CN201520530147.1U patent/CN204873823U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437104A (en) * | 2018-12-27 | 2019-03-08 | 浙江海畅气体有限公司 | A kind of device of quick Production of High-purity Hydrogen |
| CN109666520A (en) * | 2019-01-28 | 2019-04-23 | 安庆市泰发能源科技有限公司 | Butane dehydrogenation hydrogen rich off gas recycle device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102674249B (en) | One-stage hydrogen separating and purifying method based on pressure swing adsorption membrane and device for realizing same | |
| CN103521033B (en) | The method for purifying and recovering of time anger in a kind of fire flood | |
| CN107694284A (en) | A multi-tower replacement vacuum pressure swing adsorption method for concentrating coal bed methane methane | |
| CN104986735B (en) | A kind of method for improving hydrogen recovery rate | |
| CN105879577A (en) | Coalbed methane deoxidation and concentration method and device based on nitrogen displacement | |
| CN103861422B (en) | A kind of concentrate is containing the new process of methane in oxygen coal-bed gas gas | |
| CN104291280A (en) | High-efficiency molecular sieve nitrogen making machine | |
| CN102391898A (en) | Method for separating and purifying carbon dioxide in marsh gas by adopting pressure swing adsorption | |
| CN104891439A (en) | Method for increasing of recovery rate of hydrogen from reformed gas | |
| CN109012030A (en) | It is a kind of based on product gas methane displacement coal bed gas deoxidation denitrogenate method for concentration and device | |
| CN204873823U (en) | Coke oven gas system liquefied natural gas's rich hydrogen tail gas processing apparatus | |
| CN108096990B (en) | Adsorption separation device | |
| CN102698563B (en) | High purity and high recovery rate methane concentration production process and implementing device thereof | |
| CN102009963B (en) | High-purity nitrogen preparing method and device | |
| CN201930684U (en) | Non-deep-cold transforming, adsorbing and separating device for oxygen and argon mixture | |
| CN202785635U (en) | Adsorptive hydrogen purifying device | |
| CN103320193B (en) | Device and method for manufacturing high quality natural gas by purifying methane | |
| CN201988309U (en) | Methanol purge gas treatment system | |
| CN207012758U (en) | Low concentration sulfur hexafluoride gas retracting device | |
| CN203639437U (en) | A device for purifying methane from landfill biogas | |
| CN109126380B (en) | A coal mine gas enrichment device with air boosting at the exhaust end and method thereof | |
| CN102091501A (en) | Upper and lower pressure-equalizing pressure swing adsorption method | |
| CN115770463B (en) | A VPSA system and method for recovering carbon dioxide using adsorbent efficiently | |
| CN105038881B (en) | Method for continuously separating biogas by pressure swing adsorption | |
| CN101306300B (en) | Pressure swing adsorption decarbonization technique and device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 |