CN101822930A - Method for absorbing and recovering high-concentration oil vapor - Google Patents
Method for absorbing and recovering high-concentration oil vapor Download PDFInfo
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- CN101822930A CN101822930A CN 201010162095 CN201010162095A CN101822930A CN 101822930 A CN101822930 A CN 101822930A CN 201010162095 CN201010162095 CN 201010162095 CN 201010162095 A CN201010162095 A CN 201010162095A CN 101822930 A CN101822930 A CN 101822930A
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Abstract
The invention discloses a method for absorbing and recovering high-concentration oil vapor, which belongs to the technical field of oil vapor recovery, and comprises the following steps that: the high-concentration oil vapor flows through an absorption column filled with a mesopore absorbent and micropore absorbent double-layer fixed bed under normal temperature and normal pressure, the mesopore absorbent is arranged at the lower part of the absorption column, and the micropore absorbent is arranged at the upper part of the absorption column; and the absorbent absorbing organic substances is vacuumized and desorbed, and the desorbed oil vapor is condensed or absorbed and then returns to an oil tank. The concentration of the oil vapor at an outlet of the absorption column processed by the invention can be reduced to 25g/cm3, which can achieve the national control standard of oil vapor pollutant emission; and the oil product returning to the oil tank continues to be used, and the oil vapor recovery rate reaches more than 93 percent. According to the characteristics of the high-concentration oil vapor, the invention develops a double-layer fixed bed absorption process combined by the mesopore high molecular polymer absorbent and the micropore absorbent, and the high absorption capacity of the mesopore absorbent and the high absorption efficiency of the micropore absorbent are coupled, thereby achieving the efficient utilization of the high-concentration oil vapor.
Description
Technical field
The present invention relates to a kind of recovery method of oil gas, say so more specifically and adopt absorption to reclaim the method for oil gas.
Background technology
Fields such as oil, petrochemical industry, traffic produce serious oil product evaporating loss owing to light-end products such as gasoline are very easy to volatilization in production, storage, transportation, sale, use, according to statistics, the annual because oil product resource of storage, the misuse of transport facilities of China is up to tons up to a million.The direct discharging of this oil evaporation not only brings serious environmental to pollute, and returns enterprise and brings disaster hidden-trouble, and cause loss of oil product quantity and quality to descend, and the oil gas of loss still forms the main component of photochemical fog, has a strong impact on atmospheric environment.
Oil product generally can produce concentration and reach the above high-concentration oil vapor of 30% (volume fraction) in processes such as storage, transhipment.Mainly adopt absorption process, condensation method, membrane separation process, absorption method or group technology to recycle [Chen Jiaqing, Cao Jianshu, Wang Jianhong for high-concentration oil vapor at present, Li Lei, the oil gas recycling technical research of the big volume of the circular flow occasion of oil product, 2008,39 (7), 64-71].The general organic efficiency of absorption process is low; Condensation method needs low-temperature deep, and energy consumption is bigger, and it is higher to reclaim hydrocarbon cost; Membrane separation process rate of recovery height but invest too high, operating cost is high.Active carbon adsorption is the mainstream technology that at present domestic and international oil gas reclaims, and obtains using the most widely, can obtain effect preferably for middle low concentration oil gas.But for the recovery of high-concentration gasoline oil gas, because the low pore volume of the intensive active carbon of micropore causes it on the low side to the oil gas adsorbance; And absorption during high-concentration oil vapor fuel factor remarkable, high heat of adsorption can cause the serious deterioration (charing) of charcoal layer, even catch fire, especially oil gas height such as China's gasoline contains impurity such as alkene and sulphur, under high heat of adsorption effect, oxidation, charing, coking, polymerization easily take place, block the active carbon effective apearture, thereby cause adsorption rate to descend, influence service life [Huang Weiqiu, the Lv Aihua; clock Jing of active carbon, the research of high-load oil gas is reclaimed in charcoal absorption. environmental project journal, 2007,1 (2): 73-77].
Summary of the invention
1. the technical problem that will solve
Cross the low problems such as use that influence adsorbent that reach at the adsorption rate that exists in the existing high-concentration oil vapor recovery, the invention provides a kind of method of absorbing and recovering high-concentration oil vapor, can be efficiently, the low-cost oil gas that reclaims high concentration, make the discharging of oil vapour pollution thing stably reaching standard.
2. technical scheme
A kind of method of absorbing and recovering high-concentration oil vapor the steps include:
(1) with high-concentration oil vapor under normal temperature, normal pressure, by the adsorption column of the double-deck fixed bed of mesopore adsorbent and micro-porous adsorption agent is housed, wherein the mesopore adsorbent is in the bottom of adsorption column, the micro-porous adsorption agent is on the top of adsorption column;
(2) then, vacuumize desorption with having adsorbed organic adsorbent in the step (1) under normal temperature, vacuum, the oil gas of desorption turns back to oil tank through condensation or after absorbing.
Step (1) adsorption column outlet gas concentration can be reduced to 25g/m
3, reach oil vapour pollution thing discharging state control standard; The oil gas that step (2) is got back to oil tank can continue to use, and oil gas recovery rate at this moment reaches more than 93%.
Vacuum in the described step (2) is more than the 0.090Mpa.
The flow velocity of the adsorption column of the oil gas of described step (1) by the double-deck fixed bed of mesopore adsorbent and micro-porous adsorption agent is housed is 0.1～0.5m/s.
Described mesopore adsorbent be meant skeleton be styrene-divinylbenzene copolymerization or divinylbenzene autohemagglutination, the aperture mainly is distributed in the middle macroporous adsorbent resin between the 2-50nm, as XAD-4 resin of homemade NDA-1800 resin, NDA-1600 resin, the U.S. etc.; The micro-porous adsorption agent is meant that skeleton is the superhigh cross-linking micropore polymeric adsorbent of styrene-divinylbenzene, as homemade NDA-150 resin, NDA-201 resin, NDA-100 resin or acticarbon, as the F300D active carbon of homemade TX-4041, the U.S., its aperture mainly is distributed between 0～2nm.
The desorption later stage can purge with little air in the described step (2), to improve desorption rate.
The double-deck fixed bed of mesopore adsorbent provided by the invention and micro-porous adsorption agent combination is (promptly at the under-filled mesopore adsorbent of fixed bed, the micro-porous adsorption agent is filled on top) absorbing process, the high-adsorption-capacity of mesopore adsorbent and the high adsorption efficiency of micro-porous adsorption agent have been coupled, be that high-concentration oil vapor is entered by the adsorption column bottom, at first bring into play the high absorption capacity of mesopore adsorbent, gas concentration is reduced significantly, the oil gas of low concentration enters adsorption column top again, efficient absorption through the micro-porous adsorption agent, can guarantee to export the gas concentration qualified discharge, thereby realize the efficient of high-concentration oil vapor, the low-cost recovery and the stably reaching standard discharging.
3. beneficial effect
Beneficial effect of the present invention is:
(1) according to the characteristic of high-concentration oil vapor, developed double-deck fixed bed (promptly the filling the micro-porous adsorption agent) absorbing process of mesopore high molecular polymer adsorbent and micro-porous adsorption agent combination on the under-filled mesopore adsorbent of fixed bed, top, the high-adsorption-capacity of coupling mesopore adsorbent and the high adsorption efficiency of micro-porous adsorption agent are realized the efficient utilization of high-concentration oil vapor;
(2) oil gas of getting back to oil tank can continue to use, and oil gas recovery rate at this moment reaches more than 93%;
(3) adsorption column outlet gas concentration can be reduced to 25g/m
3, reach oil vapour pollution thing discharging state control standard.
The specific embodiment
Below further specify the present invention by embodiment.
Embodiment 1
At first, the 1g NDA-1800 resin of packing in the bottom of the glass adsorption column of Φ 0.8cm * 20cm, the top 0.5g NDA-150 resin of packing into;
Then, (gas concentration is about 830g/m to the gasoline vapor (oil gas) of employing Bubbling method acquisition
3, concentration is in carbon) oil gas is fed this glass adsorption column by the lower end import adsorb, the control adsorption temp is 25 ℃, and gas flow is 250mL/min, and the gas concentration of adsorption column outlet reaches 25g/m
3In time, stop to adsorb, and the work adsorption capacity is 512mg/g, and the rate of recovery is 97%;
At last, be to carry out vacuum desorption under the 0.097MPa condition with the adsorbent that has adsorbed oil gas in normal temperature, vacuum, the adsorbent behind desorption recovers adsorption capacity.
Embodiment 2
Step is with embodiment 1, but the NDA-1800 resin in the step is changed to the NDA-1600 resin, and other conditions are constant, and the work adsorption capacity is 509mg/g, and the rate of recovery is 97%.
Embodiment 3
Step is with embodiment 1, but the NDA-1800 resin in the step is changed to the XAD-4 resin, and other conditions are constant, and the work adsorption capacity is 511mg/g, and the rate of recovery is 97%.
Embodiment 4
Step is with embodiment 1, but the NDA-150 resin in the step is changed to the NDA-201 resin, and other conditions are constant, and the work adsorption capacity is 505mg/g, and the rate of recovery is 97%.
Embodiment 5
Step is with embodiment 1, but the NDA-150 resin in the step is changed to the NDA-100 resin, and other conditions are constant, and the work adsorption capacity is 507mg/g, and the rate of recovery is 97%.
Embodiment 6
Step is with embodiment 1, but the NDA-150 resin in the step is changed to homemade TX-4041, and other conditions are constant, and the work adsorption capacity is 521mg/g, and the rate of recovery is 97%.
Embodiment 7
Step is with embodiment 1, but the NDA-150 resin in the step is changed to the F300D active carbon, and other conditions are constant, and the work adsorption capacity is 501mg/g, and the rate of recovery is 95%.
Embodiment 8
Step is with embodiment 1, but changes the regeneration vacuum of step 1.3 into 0.090MPa, and other conditions are constant, and the work adsorption capacity of regeneration back adsorbent is 429mg/g, and the rate of recovery is 93%.
Embodiment 9
Step is with embodiment 1, but changes the oil gas of step 1.2 into diesel oil oil gas, and gas concentration is 500g/m
3, other conditions are constant, and the work adsorption capacity is 437mg/g, and the rate of recovery is 97%.
Embodiment 10
Step is with embodiment 1, but changes the oil gas of step 1.2 into kerosene oil gas, and other conditions are constant, and the adsorbance of oil gas is 453mg/g, recyclable about 97% oil gas.
Embodiment 11:
Step is with embodiment 1, but changes the oil gas of step 1.2 into benzene vapour, and gas concentration is 309g/m
3, other conditions are constant, and the adsorbance of oil gas is 394mg/g, recyclable about 95% oil gas.
Embodiment 12:
Step is with embodiment 1, but the NDA-1800 resin of step 1.1 is changed to 0.8g, and the NDA-150 resin is changed to 0.7g, and other conditions are constant, and the work adsorption capacity is 498mg/g, and the rate of recovery is 94%.
Claims (8)
1. the method for an absorbing and recovering high-concentration oil vapor the steps include:
(1) with high-concentration oil vapor at normal temperatures and pressures by the adsorption column of the double-deck fixed bed of mesopore adsorbent and micro-porous adsorption agent is housed, wherein the mesopore adsorbent is in the bottom of adsorption column, the micro-porous adsorption agent is on the top of adsorption column;
(2) then, vacuumize desorption with having adsorbed organic adsorbent in the step (1) under the normal temperature vacuum, the oil gas of desorption turns back to oil tank through condensation or after absorbing.
2. the flow velocity of method according to claim 1, the oil gas that it is characterized in that described step (1) adsorption column by the double-deck fixed bed of mesopore adsorbent and micro-porous adsorption agent is housed is 0.1～0.5m/s.
3. method according to claim 1 is characterized in that the vacuum of vacuum desorption in the described step (2) is more than the 0.090Mpa.
4. method according to claim 2 is characterized in that the mesopore adsorbent described in the described step (1) is that skeleton is the middle macroporous adsorbent resin of styrene-divinylbenzene copolymerization.
5. according to each described method in the claim 1～4, it is characterized in that the mesopore adsorbent described in the described step (1) is the middle macroporous adsorbent resin of divinylbenzene autohemagglutination.
6. according to each described method in the claim 1～4, it is characterized in that the micro-porous adsorption agent in the described step (1) is that skeleton is the superhigh cross-linking micropore polymeric adsorbent of styrene-divinylbenzene.
7. according to each described method in the claim 1～4, it is characterized in that the micro-porous adsorption agent in the described step (1) is the micropore active carbon.
8. according to each described method in the claim 1～4, it is characterized in that the desorption later stage purges with air in the described step (2).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527073A (en) * | 2010-12-16 | 2012-07-04 | 中国船舶重工集团公司第七一一研究所 | Adsorption-condensation composite oil gas recovering device and oil gas recovering method |
| CN102688654A (en) * | 2012-05-25 | 2012-09-26 | 南京威尔化工有限公司 | Petroleum vapor recovery adsorption bed |
| CN105080287A (en) * | 2015-08-13 | 2015-11-25 | 中国石油化工股份有限公司 | Activated carbon desorption method of activated carbon canister in benzene vapor recovery device |
| CN114425215A (en) * | 2020-10-13 | 2022-05-03 | 中国石油化工股份有限公司 | Low-temperature efficient volatile organic compound recovery method by coalescence adsorption grading |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5395428A (en) * | 1990-01-23 | 1995-03-07 | Von Bluecher; Hasso | Filter material for motor vehicles |
| CN2597058Y (en) * | 2003-01-17 | 2004-01-07 | 李从堂 | Carbon adsorption cold washing device for recovering oil and gas |
| US20040031251A1 (en) * | 2000-04-22 | 2004-02-19 | Gunter Priess | Multi-stage filter assembly for gaseous, moist media |
| CN201036729Y (en) * | 2007-06-04 | 2008-03-19 | 启东市天宇石化冶金设备有限公司 | High-performance organic steam adsorption device |
| CN201046368Y (en) * | 2007-05-07 | 2008-04-16 | 宜兴市紫晶环保设备有限公司 | Double-chamber fine filter |
| CN101342439A (en) * | 2007-07-09 | 2009-01-14 | 中国石油化工股份有限公司 | Hydrocarbons recovery method |
-
2010
- 2010-05-04 CN CN 201010162095 patent/CN101822930A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5395428A (en) * | 1990-01-23 | 1995-03-07 | Von Bluecher; Hasso | Filter material for motor vehicles |
| US20040031251A1 (en) * | 2000-04-22 | 2004-02-19 | Gunter Priess | Multi-stage filter assembly for gaseous, moist media |
| CN2597058Y (en) * | 2003-01-17 | 2004-01-07 | 李从堂 | Carbon adsorption cold washing device for recovering oil and gas |
| CN201046368Y (en) * | 2007-05-07 | 2008-04-16 | 宜兴市紫晶环保设备有限公司 | Double-chamber fine filter |
| CN201036729Y (en) * | 2007-06-04 | 2008-03-19 | 启东市天宇石化冶金设备有限公司 | High-performance organic steam adsorption device |
| CN101342439A (en) * | 2007-07-09 | 2009-01-14 | 中国石油化工股份有限公司 | Hydrocarbons recovery method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527073A (en) * | 2010-12-16 | 2012-07-04 | 中国船舶重工集团公司第七一一研究所 | Adsorption-condensation composite oil gas recovering device and oil gas recovering method |
| CN102688654A (en) * | 2012-05-25 | 2012-09-26 | 南京威尔化工有限公司 | Petroleum vapor recovery adsorption bed |
| CN105080287A (en) * | 2015-08-13 | 2015-11-25 | 中国石油化工股份有限公司 | Activated carbon desorption method of activated carbon canister in benzene vapor recovery device |
| CN105080287B (en) * | 2015-08-13 | 2017-06-13 | 中国石油化工股份有限公司青岛安全工程研究院 | The activated charcoal desorption method of charcoal canister in benzene vapor retracting device |
| CN114425215A (en) * | 2020-10-13 | 2022-05-03 | 中国石油化工股份有限公司 | Low-temperature efficient volatile organic compound recovery method by coalescence adsorption grading |
| CN114425215B (en) * | 2020-10-13 | 2022-11-18 | 中国石油化工股份有限公司 | Low-temperature efficient recovery method for volatile organic compounds with coalescence adsorption grading |
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Application publication date: 20100908 |