CN106139630A - A kind of composite algorithm petroleum vapor recovery processing method - Google Patents
A kind of composite algorithm petroleum vapor recovery processing method Download PDFInfo
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- CN106139630A CN106139630A CN201510168370.0A CN201510168370A CN106139630A CN 106139630 A CN106139630 A CN 106139630A CN 201510168370 A CN201510168370 A CN 201510168370A CN 106139630 A CN106139630 A CN 106139630A
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of composite algorithm petroleum vapor recovery processing method, solve and how to absorb, with condensed fluid, the problem that oil gas collocation improves oil recovery rate by separating film absorption.By removing the oil gas of steam, it is sent in Oil-gas Separation membrane separation device, carries out the separation of oil gas and air, by absorption oil gas on Oil-gas Separation film, in vacuum pump is transported to absorption tower；Unadsorbed oil gas on Oil-gas Separation film is sent in absorbent charcoal adsorption tank, carries out the separation of oil gas and air, by absorption oil gas on the activated carbon, in vacuum pump is transported to absorption tower；By condensation unit, the gasoline for spray is carried out cooling process so that it is temperature is down to about 15 degree；Spray gasoline after cooling is sent in absorption tower, the oil gas sent in absorption tower is sprayed, makes oil gas be converted into gasoline；The oil gas being not converted into gasoline is drained in lime set tank, until gas concentration reaches to empty requirement.Improve oil gas absorbing rate, eliminate membrance separation and be easily generated the potential safety hazard of electrostatic.
Description
Technical field
The present invention relates to a kind of by petroleum vapor recovery processing method compound for the multiple separating technology of the absorption of Oil-gas Separation film and condensed fluid absorption oil gas.
Background technology
When being used as to separate oil gas by absorbent charcoal adsorption tank, the activated carbon in tank is by adsorbing the oil gas in the air being passed through, it is achieved Oil-gas Separation.Before carrying out adsorbing work, first have to load in adsorption tanks by grid, due to the manhole limited diameter in tank, make the overall of grid load the bad operation of adsorption tanks.After installing grid, top charging door from tank to load activated carbon, the grid of prior art is generally planar shaped, activated carbon in tank can pile a cone by nature during loading, make activated carbon in cone shape in tank so that it is the activated carbon of bottom can not effectively be expanded with the contact area of oil gas.There is the defect that amount of membrane is big and cost is high with Oil-gas Separation film when adsorbing, the absorption of Oil-gas Separation film is not suitable for the absorption of low concentration oil gas.Prior art, owing to oil gas separating the uncertain unpredictable of film absorption and the technical process of activated carbon adsorption collocation and parameter, does not find and can reduce cost and can improve again the rational processing step of oil recovery rate.
Summary of the invention
The invention provides a kind of composite algorithm petroleum vapor recovery processing method, how solve by separation film absorption and the technical problem of condensed fluid absorption oil gas collocation raising oil recovery rate.
The present invention is to solve above technical problem by the following technical programs:
A kind of composite algorithm petroleum vapor recovery processing method, it is characterised in that following steps:
The first step, first by oil-gas transportation to lime set tank, the steam in oil gas is liquefied；
Second step, by removing the oil gas of steam, be sent in Oil-gas Separation membrane separation device, carry out the separation of oil gas and air, by absorption oil gas on Oil-gas Separation film, in vacuum pump is transported to absorption tower；
3rd step, unadsorbed oil gas on Oil-gas Separation film is sent in absorbent charcoal adsorption tank, carry out the separation of oil gas and air, by absorption oil gas on the activated carbon, in vacuum pump is transported to absorption tower；
4th step, by condensation unit to for spray gasoline carry out cooling process so that it is temperature is down to about 15 degree；
5th step, the spray gasoline after cooling is sent in absorption tower, the oil gas sent in absorption tower is sprayed, makes oil gas be converted into gasoline；
6th step, the oil gas being not converted into gasoline is drained in lime set tank, repeats the first step step to the 5th step, reach till emptying requires until gas concentration.
Oil gas passes through membrance separation and two technical processs of activated carbon adsorption Oil-gas Separation, resolved by vacuum pump evacuation again, the oil gas of isolated high concentration in membrane separation assemblies and adsorption tanks assembly is sent into absorption tower, utilize lean gasoline as spray-absorption agent, the temperature making absorbent after condensation is reduced to 15 DEG C, the gas spirit making the high concentration high temperature in absorption tower absorbs and becomes liquid gasoline, hydrocarbon molecule concentration≤25g/m contained by discharge air3Requirement, it is achieved petroleum vapor recovery processes, and reaches the social goal of energy-conserving and environment-protective.
Present invention employs membrance separation, condense and adsorb three kinds of processes, the consumption 30% of film can be reduced, reduce cost of investment, increase the service life.After oil gas first passes around membrance separation, gas concentration reduces by 70%, can reduce adsorption tanks structure and reduce adsorbent amount, increase the service life.Spray-absorption liquid to 15 DEG C through condensation reduction temperature, improves oil gas absorbing rate 20%, reduces oil gas temperature in absorption tower, also reduce the temperature of secondary return-air, significantly eliminate membrance separation and be easily generated the potential safety hazard of electrostatic.
Detailed description of the invention
The present invention is described in detail below:
A kind of composite algorithm petroleum vapor recovery processing method, it is characterised in that following steps:
The first step, first by oil-gas transportation to lime set tank, the steam in oil gas is liquefied；
Second step, by removing the oil gas of steam, be sent in Oil-gas Separation membrane separation device, carry out the separation of oil gas and air, by absorption oil gas on Oil-gas Separation film, in vacuum pump is transported to absorption tower；
3rd step, unadsorbed oil gas on Oil-gas Separation film is sent in absorbent charcoal adsorption tank, carry out the separation of oil gas and air, by absorption oil gas on the activated carbon, in vacuum pump is transported to absorption tower；
4th step, by condensation unit to for spray gasoline carry out cooling process so that it is temperature is down to about 15 degree；
5th step, the spray gasoline after cooling is sent in absorption tower, the oil gas sent in absorption tower is sprayed, makes oil gas be converted into gasoline；
6th step, the oil gas being not converted into gasoline is drained in lime set tank, repeats the first step step to the 5th step, reach till emptying requires until gas concentration.
After the oil gas come by airtight collection enters device, first pass through gas-liquid separator, lime set gasoline contained in oil gas is separated feeding oil return pipe；Oil gas enters back into membrane module and processes.The ultimate principle of membrane separation process Investigation of Petroleum Vapor Recovery Technology is: make use of the polymeric membrane feature to the preferential permeability of oil gas, the filtration through film under certain pressure reduction promotes of the gaseous mixture of oil gas/air is allowed to make the oil gas in gaseous mixture preferentially be able to " removing " recovery, air then retaining by selectivity through film.The per-meate side vacuum pump group of membrane module is bled, thus forms certain pressure reduction before and after film.Oil gas molecule will be under the effect of this pressure reduction, and preferentially through membrane module, the per-meate side at membrane module forms the enrichment oil gas of high concentration, and entering absorption tower spray-absorption by vacuum pump group after being resolved becomes liquid gasoline.Absorb again after the lean gasoline of spray-absorption cools to 15 DEG C by lean petrol pump entrance condensation to gasoline, can effectively ensure the effect of absorption efficiency and petroleum vapor recovery.Continuing absorption in the retentate side of membrane module then can form the discharge gas entrance adsorption tanks of low concentration and become enrichment oil gas, then become liquid gasoline by vacuum pump group parsing entrance absorption tower spray-absorption, air up to standard enters air from the exhaustor of adsorption tanks.The liquid gasoline of absorption tower spray-absorption is by rich petrol pump blowback oil storage tank.
Claims (1)
1. a composite algorithm petroleum vapor recovery processing method, it is characterised in that following steps:
The first step, first by oil-gas transportation to lime set tank, the steam in oil gas is liquefied；
Second step, by removing the oil gas of steam, be sent in Oil-gas Separation membrane separation device, carry out the separation of oil gas and air, by absorption oil gas on Oil-gas Separation film, in vacuum pump is transported to absorption tower；
3rd step, unadsorbed oil gas on Oil-gas Separation film is sent in absorbent charcoal adsorption tank, carry out the separation of oil gas and air, by absorption oil gas on the activated carbon, in vacuum pump is transported to absorption tower；
4th step, by condensation unit to for spray gasoline carry out cooling process so that it is temperature is down to about 15 degree；
5th step, the spray gasoline after cooling is sent in absorption tower, the oil gas sent in absorption tower is sprayed, makes oil gas be converted into gasoline；
6th step, the oil gas being not converted into gasoline is drained in lime set tank, repeats the first step step to the 5th step, reach till emptying requires until gas concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510168370.0A CN106139630A (en) | 2015-04-12 | 2015-04-12 | A kind of composite algorithm petroleum vapor recovery processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510168370.0A CN106139630A (en) | 2015-04-12 | 2015-04-12 | A kind of composite algorithm petroleum vapor recovery processing method |
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| CN106139630A true CN106139630A (en) | 2016-11-23 |
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| CN201510168370.0A Withdrawn CN106139630A (en) | 2015-04-12 | 2015-04-12 | A kind of composite algorithm petroleum vapor recovery processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837648A (en) * | 2017-11-08 | 2018-03-27 | 北京信诺海博石化科技发展有限公司 | The recovery process of middle low concentration oil gas |
| CN107854955A (en) * | 2017-09-20 | 2018-03-30 | 北京普惠实华科技有限公司 | A kind of hydrocarbon-contained waste gas recovery process and method of controlling operation thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101235315A (en) * | 2007-02-01 | 2008-08-06 | 爨伟亮 | Method for reclaiming and treating oil gas |
| CN201737370U (en) * | 2010-07-05 | 2011-02-09 | 浙江佳力科技股份有限公司 | Oil gas recycling device |
| CN102151414A (en) * | 2010-05-07 | 2011-08-17 | 中国人民解放军总后勤部油料研究所 | Device for recovering oil gas by using condensing adsorptive process and device for switching absorption and desorption |
| CN202844830U (en) * | 2012-09-07 | 2013-04-03 | 许红印 | Recovery device for oil gas generated by smelting waste oil |
| CN204107268U (en) * | 2014-05-30 | 2015-01-21 | 中国石油化工股份有限公司 | Device for recovering oil and gas |
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2015
- 2015-04-12 CN CN201510168370.0A patent/CN106139630A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235315A (en) * | 2007-02-01 | 2008-08-06 | 爨伟亮 | Method for reclaiming and treating oil gas |
| CN102151414A (en) * | 2010-05-07 | 2011-08-17 | 中国人民解放军总后勤部油料研究所 | Device for recovering oil gas by using condensing adsorptive process and device for switching absorption and desorption |
| CN201737370U (en) * | 2010-07-05 | 2011-02-09 | 浙江佳力科技股份有限公司 | Oil gas recycling device |
| CN202844830U (en) * | 2012-09-07 | 2013-04-03 | 许红印 | Recovery device for oil gas generated by smelting waste oil |
| CN204107268U (en) * | 2014-05-30 | 2015-01-21 | 中国石油化工股份有限公司 | Device for recovering oil and gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107854955A (en) * | 2017-09-20 | 2018-03-30 | 北京普惠实华科技有限公司 | A kind of hydrocarbon-contained waste gas recovery process and method of controlling operation thereof |
| CN107837648A (en) * | 2017-11-08 | 2018-03-27 | 北京信诺海博石化科技发展有限公司 | The recovery process of middle low concentration oil gas |
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Application publication date: 20161123 |