CN202116510U - Organic gas recovery device by triple effect cascade method - Google Patents
Organic gas recovery device by triple effect cascade method Download PDFInfo
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- CN202116510U CN202116510U CN2011202008885U CN201120200888U CN202116510U CN 202116510 U CN202116510 U CN 202116510U CN 2011202008885 U CN2011202008885 U CN 2011202008885U CN 201120200888 U CN201120200888 U CN 201120200888U CN 202116510 U CN202116510 U CN 202116510U
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000000694 effects Effects 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 title abstract description 7
- 239000007789 gas Substances 0.000 claims description 53
- 239000012528 membrane Substances 0.000 claims description 26
- 238000000926 separation method Methods 0.000 claims description 20
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 6
- 238000011069 regeneration method Methods 0.000 claims description 6
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000006096 absorbing agent Substances 0.000 abstract 3
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000003209 petroleum derivative Substances 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 5
- -1 carbon hydro carbons Chemical class 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 206010010219 Compulsions Diseases 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
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- Separation Of Gases By Adsorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to an organic gas recovery device by triple effect cascade method for recycling volatile components in storage and handling processes of petroleum products or volatile organic chemicals. Volatile organic gas enters an inlet of a compressor and the outlet of the compressor is connected with a precooler. The outlet of the precooler is connected with the inlet of a condenser, the outlet of the condenser is connected with a cold source inlet end of the precooler and the cold source outlet end of the precooler is connected with the inlet end in front of a film of a film separator. The outlet end in front of the film of the film separator is connected with a gas inlet of an absorber. A resurgent gas pipe of the absorber is connected with the inlet of a vacuum pump and the outlet of the vacuum pump and the outlet end behind the film of the film separator are connected with the inlet end of the compressor. A condensate output pipe is arranged at the bottom of the condenser and a purified gas discharge pipe is arranged on the absorber. The device recycles oil gas effectively, reasonably and economically, reduces the volatile loss of oil products, prevents the environmental pollution by the organic gas and eliminates the potential safety hazard.
Description
Technical field
The utility model relates to a kind of triple effect overlapping method organic gas retrieving arrangement, be used for processed oil or organic chemical industry's article in accumulating, loading and unloading link to the recovery of volatiles.
Background technology
Have a large amount of volatile components (being called oil gas) in processed oil (gasoline, kerosene, diesel oil etc.) that refinery is produced or the chemicals, in a plurality of links such as storage, transportation and loading and unloading, the volatile components of generation can volatilize and leak.Under some occasion, the outer discharge of oil gas is bigger, for example during the charge of oil platform charge of oil of oil depot or refinery, and the oil gas that volatilizes from tank wagon or trough truck oil port, the difference of flow according to temperature and when refueling, gas concentration is about 10% ~ 40%.Evaporable oil gas mainly contains organic constituents such as propane, butane, the eleventh of the twelve Earthly Branches alkane, heptane, octane, benzene; These flammable organic gas disperses can cause topsoil in air, infringement human health, and accident such as presence of fire very easily; There is potential safety hazard; According to the related data statistics, the loss of evaporable oil gas accounts for 1% of processed oil total amount in addition, and the financial loss that visible evaporable oil gas is caused is considerable.
According to corresponding state compulsion emission standard, the charge of oil platform of oil depot or refinery must be installed device for recovering oil and gas.The recovery principle of common device for recovering oil and gas roughly has three kinds: condensation method, membrane separation process and absorption method.These three kinds of separation and recovery methods cut both ways, and condensation method efficient when the high temperature condensation is high, but low and have an ice formation issues to the low temperature aging rate; Membrane separation process is all higher in each section efficient, but the separatory membrane cost is higher; Absorption method is low and efficient is high, the life-span is long when not having water and heavy carbon hydro carbons at gas concentration, but gas concentration is high and when water and weight carbon hydro carbons are arranged efficient and life-span all have a greatly reduced quality.If can bring into play the strong point of three kinds of methods, avoid the weakness of three kinds of methods, then be a kind of recovery method of optimum.
Summary of the invention
The purpose of the utility model provides a kind of triple effect overlapping method organic gas retrieving arrangement; It is the strong point of condensation method, membrane separation process and absorption method comprehensively; Effectively, reasonably, carrying out oil gas economically reclaims; To reduce the volatilization loss of oil product, pollution and the potential safety hazard of avoiding organic gas that environment and production work are caused.
Triple effect overlapping method organic gas retrieving arrangement comprises compressor, pre-cooler, condensing surface, membrane separation apparatus, vacuum pump and adsorber, is linked to be system through pipeline; VOC (or claiming oil gas) feeds the import of compressor; The outlet of compressor links to each other with the pre-cooler import; The pre-cooler outlet links to each other with condenser inlet; Condensator outlet links to each other with the low-temperature receiver entrance end of pre-cooler, and exit end is connected with the adsorber inlet mouth before the entrance end before the film of the low-temperature receiver exit end junctional membrane separator of pre-cooler, the film of membrane separation apparatus; The resurgent gases pipeline of adsorber links to each other with the import of vacuum pump, and exit end all links to each other with the entrance end of compressor behind the film of vacuum pump outlet and membrane separation apparatus; The bottom of said condensing surface is provided with the phlegma output tube, and adsorber is provided with the pure qi (oxygen) delivery pipe.
Set up a vacuum pump behind the film of said membrane separation apparatus between the entrance end of exit end and compressor.
Adsorber comprises the adsorption tanks of two parallel connections, and each adsorption tanks is equipped with absorption intake valve and regeneration air outlet valve.
This device combines condensation, membrane sepn and absorption; Make most oil gas pass through condensing and recycling; The non-condensable gas that is not condensed is through membrane separation apparatus, and oil gas wherein (especially heavy carbon hydrocarbon and water) penetrated preferably membrane module sees through side (film rear side) at film and concentrated; Thereby oil gas (especially heavy carbon hydrocarbon and the water) concentration that does not see through in the gas is reduced, make remaining oil gas by charcoal absorption through adsorber again; Adsorber is through vacuum desorption regeneration, and concentrated gas all returns behind the film of resurgent gases and membrane separation apparatus, together sends into compressor inlet with the oil gas of new input, repeats above treating processes.This device obtains the oil gas phlegma from the condensing surface bottom, reclaims the back storage and goes into oil tank; What gas concentration was extremely low purifies air from the adsorber top discharge.This device makes full use of cold with the oil gas non-condensable gas of the condensator outlet heat-eliminating medium as pre-cooler, utilizes the detachment dynamic of the overbottom pressure (or exit end vacuumizes behind the film of membrane separation apparatus) of noncondensable gas as separating film module, energy efficient.
Adsorber is only handled the extremely low concentration oil gas (moisture hardly and heavy carbon hydrocarbon) behind membrane sepn, and the life-span of sorbent material is prolonged, and the efficient of absorption improves.
In sum; This device has been drawn the advantage of condensation method, membrane separation process and three kinds of methods of absorption method; Realize condensation, membrane sepn and absorption triple effect overlapping; Reclaim thereby carry out oil gas effectively, reasonably, economically, not only reduce the volatilization loss of oil product, and eliminated oil gas pollution on the environment and potential safety hazard.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of triple effect overlapping method organic gas retrieving arrangement.
Fig. 2 is the system architecture synoptic diagram of another embodiment of triple effect overlapping method organic gas retrieving arrangement.
Among the figure, 1-compressor, 2-pre-cooler, 3-condensing surface, 4-membrane separation apparatus, 5,11-vacuum pump, 6-adsorber, 7-absorption intake valve, 8-regeneration air outlet valve, 9-clean air outlet, 10-phlegma (recovery) outlet pipe.
Embodiment
Like Fig. 1; VOC (oil gas) is sent into pre-cooler 2 through compressor 1; Oil gas after the precooling gets into condensing surface 3 and is cooled to 0-5 ℃, and wherein about 30-70% oil gas is condensed into premium, flows into oil tank from condensing surface 3 bottom condensate outlet pipes 10 and utilizes; Non-condensable gas is as the low-temperature receiver of pre-cooler 2 in the condensing surface 3; In pre-cooler 2, pass through 10-20 ℃ of back intensification, get into membrane separation apparatus 4 then, because oil-gas component more preferably sees through film than air; Thereby handle again at the inlet that sees through side (after being film) enrichment and return compressor 1 of film; And the concentration of passing through oil-gas component in the residual air of membrane separation apparatus 4 has been lower than 5%Vol, and it is fed adsorber 6, through charcoal absorption oil-gas component wherein; And NMHC is lower than discharging standards in the gas that is not adsorbed, from clean air outlet 9 dischargings.The adsorber that has adsorbed oil gas is through vacuum pump 5 desorption and regenerations, and regeneration gas turns back to compressor 1 inlet through vacuum pump, repeats above the processing.
Adsorber 6 is composed in parallel by two absorbent charcoal adsorption tanks; The two is through conciliating the conversion of sucking-off air valve 8 to absorption intake valve 7, when making one of them jar be in adsorbed state, another jar is in detachment status; Absorption and desorption hocket the implement device non-stop run.
In Fig. 2 system, set up a vacuum pump 11 behind the film of membrane separation apparatus 4 between the entrance end of exit end and compressor 4, all the other are identical with Fig. 1.This scheme is used for working as the situation of the compression pressure of compressor 1 less than 0.3MPaG.
Claims (3)
1. triple effect overlapping method organic gas retrieving arrangement; Comprise that compressor, pre-cooler, condensing surface, membrane separation apparatus, vacuum pump and adsorber are linked to be system through pipeline; It is characterized in that VOC feeds the import of compressor; The outlet of compressor links to each other with the pre-cooler import, and the pre-cooler outlet links to each other with condenser inlet, and condensator outlet links to each other with the low-temperature receiver entrance end of pre-cooler; Entrance end before the film of the low-temperature receiver exit end junctional membrane separator of pre-cooler; Exit end is connected with the adsorber inlet mouth before the film of membrane separation apparatus, and the resurgent gases pipeline of adsorber links to each other with the import of vacuum pump, and exit end all links to each other with the entrance end of compressor behind the film of vacuum pump outlet and membrane separation apparatus; The bottom of said condensing surface is provided with the phlegma output tube, and adsorber is provided with the pure qi (oxygen) delivery pipe.
2. triple effect overlapping method organic gas retrieving arrangement according to claim 1 is characterized in that said adsorber comprises the adsorption tanks of two parallel connections, and each adsorption tanks is equipped with absorption intake valve and regeneration air outlet valve.
3. triple effect overlapping method organic gas retrieving arrangement according to claim 1 and 2 is characterized in that setting up a vacuum pump between the entrance end of exit end and compressor behind the film of said membrane separation apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202008885U CN202116510U (en) | 2011-06-15 | 2011-06-15 | Organic gas recovery device by triple effect cascade method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202008885U CN202116510U (en) | 2011-06-15 | 2011-06-15 | Organic gas recovery device by triple effect cascade method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202116510U true CN202116510U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202008885U Expired - Lifetime CN202116510U (en) | 2011-06-15 | 2011-06-15 | Organic gas recovery device by triple effect cascade method |
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| CN (1) | CN202116510U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566619A (en) * | 2013-10-29 | 2014-02-12 | 中国石油化工股份有限公司 | Method for recovering multi-component organic gas mixture |
| CN104289072A (en) * | 2014-07-16 | 2015-01-21 | 泉州市天龙环境工程有限公司 | Cascade recovery apparatus and method for benzene hydrocarbon volatile gases |
| CN106742888A (en) * | 2016-12-15 | 2017-05-31 | 安徽科海压缩机制造有限公司 | The shallow cold recovery device of the supercharging of volatile organic steam in a kind of oil gas |
| CN107789956A (en) * | 2017-11-10 | 2018-03-13 | 南京天膜科技股份有限公司 | It is a kind of to realize internal floating roof tank interbedded gas VOCs zero-emissions, remove oxygen and recycle the device of nitrogen |
-
2011
- 2011-06-15 CN CN2011202008885U patent/CN202116510U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566619A (en) * | 2013-10-29 | 2014-02-12 | 中国石油化工股份有限公司 | Method for recovering multi-component organic gas mixture |
| CN104289072A (en) * | 2014-07-16 | 2015-01-21 | 泉州市天龙环境工程有限公司 | Cascade recovery apparatus and method for benzene hydrocarbon volatile gases |
| CN106742888A (en) * | 2016-12-15 | 2017-05-31 | 安徽科海压缩机制造有限公司 | The shallow cold recovery device of the supercharging of volatile organic steam in a kind of oil gas |
| CN107789956A (en) * | 2017-11-10 | 2018-03-13 | 南京天膜科技股份有限公司 | It is a kind of to realize internal floating roof tank interbedded gas VOCs zero-emissions, remove oxygen and recycle the device of nitrogen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210024 Guangzhou Road, Jiangsu city of Nanjing province No. 140 Park building 25 floor E block Patentee after: NANJING TIANMO TECHNOLOGY CO., LTD. Address before: 210024 Guangzhou Road, Jiangsu city of Nanjing province No. 140 Park building 25 floor E block Patentee before: Nanjing Tianmo Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
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| CX01 | Expiry of patent term |