CN101274191B - Spare adsorption method for recovering oil gas - Google Patents
Spare adsorption method for recovering oil gas Download PDFInfo
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- CN101274191B CN101274191B CN2007101736031A CN200710173603A CN101274191B CN 101274191 B CN101274191 B CN 101274191B CN 2007101736031 A CN2007101736031 A CN 2007101736031A CN 200710173603 A CN200710173603 A CN 200710173603A CN 101274191 B CN101274191 B CN 101274191B
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Abstract
The invention discloses an oil gas recovery standby adsorption method used for a working condition that flux of the oil gas which is effectively disposed by an oil gas recovery device is suddenly increased. The adsorption method comprises that a first adsorption tank and a second adsorption tank are alternatively carried out adsorption and regeneration while a standby adsorption tank does not work; when detecting that the disposal quantity of the oil gas is increased, the disposed oil gas is adsorbed by passing through the standby adsorption tank and the first adsorption tank and the second adsorption tank sequentially enter a regeneration state. Till the standby adsorption tank is saturated, the first absorption tank and the second adsorption tank are alternatively carried out adsorption and regeneration again. Therefore, the adsorption method of the invention can deal with the working condition that the disposal quantity is suddenly increased by using the standby adsorption tank, without obvious increment of investment.
Description
Technical field
The present invention relates to a kind of oil gas absorbing process method, relating in particular to the handling oil throughput to have the very spare adsorption method for recovering oil gas of the operating mode of great fluctuation process.
Background technology
The stronger fluid products of volatility such as light-end products such as gasoline and benzene, in transportation and handling procedure, can produce a large amount of oil gas,, atmospheric environment be produced harmful effect if this part oil gas directly is discharged in the atmosphere, cause the energy to run off in vain, and have major safety risks.For addressing this problem, absorption method reclaims this part oil gas at present.
The adsorption plant of the technology of absorption method oil gas recovery at present has two adsorption tanks to switch absorption and regeneration in turn, when promptly adsorption tanks carry out oil gas absorption therein, another adsorbs the regeneration after saturated, conversely, when regenerating after aforesaid one of them adsorption tanks absorption is saturated, another adsorption tanks carry out oil gas absorption.
There is following problem in above-mentioned adsorption plant: when day output or throughput per hour roll up suddenly for some reason, the adsorption capacity of adsorption plant can not improve thereupon, can not satisfy requirement of actual working condition, cause oil gas to handle failure, emission gases problem such as exceed standard.If in order to tackle the situation that this treating capacity increases suddenly, integral body adopts the more design of high throughput, as increasing the used vacuum system of regeneration and the capacity on absorption tower afterwards, but this can cause plant investment to waste again.
Summary of the invention
For this reason, the invention provides a kind of needs a small amount of investment of increase just can successfully manage the operating mode that the gas treatment amount increases suddenly, and the organic efficiency height, the spare adsorption method for recovering oil gas that emission gases is up to standard.
The technical solution adopted in the present invention is a kind of spare adsorption method for recovering oil gas, be used to make the effective handling oil throughput of the device for recovering oil and gas operating mode of increase suddenly, this device for recovering oil and gas comprises: oil gas suction line, vacuum regeneration pipeline, discharging gas outlet line, first adsorption tanks, second adsorption tanks and standby adsorption tanks in order to alternately to adsorb, to regenerate, first adsorption tanks, second adsorption tanks and standby adsorption tanks are connected with oil gas suction line, vacuum regeneration pipeline and discharging gas outlet line respectively, and the vacuum regeneration pipeline connects a vacuum system; It is characterized in that, described adsorption method comprises: first adsorption tanks and second adsorption tanks are hocketed adsorb and regenerative process, keep the cut-out that is connected between standby adsorption tanks and oil gas suction line, vacuum regeneration pipeline and the discharging gas outlet line simultaneously, standby adsorption tanks are not worked; When detecting the oil gas treating capacity and surpass the processing load of first adsorption tanks and second adsorption tanks, being connected between standby adsorption tanks and oil gas suction line and the discharging gas outlet line opened, make processed oil gas be adsorbed processing, and make first adsorption tanks and second adsorption tanks enter reproduced state successively by standby adsorption tanks.
In above-mentioned spare adsorption method for recovering oil gas, also comprise when standby adsorption tanks and adsorbing when saturated, make the cut-out that is connected between standby adsorption tanks and oil gas suction line and the discharging gas outlet line, being connected between standby adsorption tanks and the vacuum regeneration pipeline opened, standby adsorption tanks are regenerated; Make first adsorption tanks and second adsorption tanks recover the process that hockets absorption and regenerate simultaneously.
Therefore, said method of the present invention can make device for recovering oil and gas when gas flow increases suddenly, starts standby adsorption tanks and adsorbs, and plays cushioning effect, guarantees that device can carry out the processing of continuous effective to oil gas.The present invention only need increase a small amount of investment at absorbed portion, compares and adopts the more design of high throughput on the whole, can save the equipment input of regeneration, absorption portion, thereby cost is lower.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is the retracting device structural representation according to spare adsorption method for recovering oil gas of the present invention.
Fig. 2 is the flow chart that oil gas of the present invention reclaims an embodiment of standby adsorption tanks method.
The specific embodiment
Oil gas spare adsorption method of the present invention is applicable to the processing of organic mist that gasoline, benzene, solvent wet goods light-end products produce in the entrucking process, but not as limit.Please refer to shown in Figure 1ly, comprise the first adsorption tanks 1a, the second adsorption tanks 1b, absorption slack tank 2, the standby sequencing valve 6 of inlet, the standby sequencing valve 4 of outlet, the standby sequencing valve 5 of regeneration, purge standby sequencing valve 3, vacuum system 7 etc. according to the retracting device of this method design.
As shown in Figure 1, adsorption tanks 1a is connected with oil gas suction line 11, vacuum regeneration pipeline 12, discharging gas outlet line 13 respectively with adsorption tanks 1b, and autocontrol valve all is set on the three-way connection (pipe) line, and two adsorption tanks 1a, 1b alternately adsorb, regenerate by the autocontrol valve handover operation.In adsorption process, gas enters in the adsorption tanks (as 1a) from oil gas suction line 11, obtain adsorption treatment after, residual gas is discharged from discharging gas outlet line 13.In regenerative process, vacuum system 7 is regenerated by 12 pairs of adsorption tanks of vacuum regeneration pipeline (as 1b), so that can carry out adsorption process again.The structure of the first adsorption tanks 1a, the second adsorption tanks 1b is existing design, and its further structure and the course of work no longer are described in detail.
The first adsorption tanks 1a, the second adsorption tanks 1b have relatively-stationary processing load, when the oil gas treating capacity increases suddenly and when surpassing this load, can cause oil gas to have little time adsorption treatment and discharge, and emission gases is exceeded standard.For this reason, standby adsorption tanks 2 have been disposed.
The inlet of standby adsorption tanks 2 is connected with oil gas suction line 11, the standby absorption sequencing valve 6 of inlet porting on the pipeline therebetween, standby adsorption tanks 2 are connected with vacuum regeneration pipeline 12 simultaneously, and the standby sequencing valve 5 and link to each other with vacuum system 7 of regenerating is set on the pipeline therebetween.The outlet line of standby adsorption tanks 2 links to each other with discharging gas outlet line 13 through exporting standby sequencing valve 4; Export between the outlet of standby sequencing valve 4 and standby adsorption tanks 2 scavenging conduit 14 and standby purging sequencing valve 3 are set.
In addition, on discharging gas outlet line 13, be provided with the densimeter 8 that detects gas concentration.
Followingly spare adsorption method of the present invention is described with reference to Fig. 2.
At first as step 21, under normal process flow, adsorption tanks 1a and adsorption tanks 1b switch adsorb, regenerative operation, and standby adsorption tanks 2, the standby sequencing valve 6 of inlet, the standby sequencing valve 4 of outlet, the standby sequencing valve 5 of regeneration, purge standby sequencing valve 3 etc. and when equipment normally moves, be in closed condition.Standby adsorption tanks 2 all are closed with the access path of oil gas suction line 11, vacuum regeneration pipeline 12 and discharging gas outlet line 13.
Secondly, in step 22, exceed standard when detecting emission gases by densimeter 8, mean that the oil gas treating capacity surpasses the processing load of the first adsorption tanks 1a and the second adsorption tanks 1b, standby adsorption tanks 2 can begin to put into operation.Specifically, at first open the standby sequencing valve 6 of inlet of standby adsorption tanks 2, standby outlet sequencing valve 4, standby adsorption tanks 2 and oil gas suction line 11 and being connected of discharging gas outlet line 13 are opened, and processed gas can enter standby adsorption tanks by oil gas suction line 11 and obtain handling; Simultaneously, make adsorption tanks 1a, adsorption tanks 1b enter reproduced state in succession, regenerate, adsorption tanks 1b is regenerated as making adsorption tanks 1a earlier.
Then, as step 23, when the saturated back of standby adsorption tanks 2 absorption or adsorption tanks 1a, adsorption tanks 1b regenerate finish after, close standby inlet sequencing valve 6, standby outlet sequencing valve 4, promptly close being connected of standby adsorption tanks 2 and oil gas suction line 11 and discharging gas outlet line 13 once more, open standby regeneration sequencing valve 5 then, regenerate by the sorbing material in 7 pairs of standby adsorption tanks 2 of vacuum system.Simultaneously, make adsorption tanks 1a, adsorption tanks 1b enter normal switching operation state once more, after oil gas disposes, stop.
After treating capacity increases once more, can start above standby adsorption process once more, guarantee that oil gas can both be effectively addressed all the time, satisfy corresponding environmental protection standard.
In another embodiment, the judgment processing amount increases suddenly and surpasses the mode that original processing is loaded, and can also be that flowmeter is set on oil gas suction line 11, is preferably the cooperation densimeter, pre-estimates treating capacity and judges that whether it is above handling load.
Therefore, said method can make device for recovering oil and gas when gas flow increases suddenly, starts standby adsorption tanks and adsorbs, and plays cushioning effect, guarantees that device can carry out the processing of continuous effective to oil gas.The present invention only need increase a small amount of investment at absorbed portion, compares and adopts the more design of high throughput on the whole, can save the vacuum system of regeneration and the equipment input of absorption tower part, thereby cost is lower.
Claims (3)
1. spare adsorption method for recovering oil gas, be used to make the effective handling oil throughput of the device for recovering oil and gas operating mode of increase suddenly, this device for recovering oil and gas comprises: oil gas suction line, vacuum regeneration pipeline, discharging gas outlet line, first adsorption tanks, second adsorption tanks and standby adsorption tanks in order to alternately to adsorb, to regenerate, first adsorption tanks, second adsorption tanks and standby adsorption tanks are connected with oil gas suction line, vacuum regeneration pipeline and discharging gas outlet line respectively, and the vacuum regeneration pipeline connects a vacuum system; It is characterized in that described adsorption method comprises:
Make first adsorption tanks and second adsorption tanks hocket absorption and regenerative process, keep standby adsorption tanks and oil gas suction line, vacuum regeneration pipeline simultaneously and discharge the cut-out that is connected between the gas outlet line, standby adsorption tanks are not worked;
When detecting the oil gas treating capacity and surpass the processing load of first adsorption tanks and second adsorption tanks, being connected between standby adsorption tanks and oil gas suction line and the discharging gas outlet line opened, make processed oil gas be adsorbed processing, and make first adsorption tanks and second adsorption tanks enter reproduced state successively by standby adsorption tanks;
When standby adsorption tanks adsorb when saturated, make the cut-out that is connected between standby adsorption tanks and oil gas suction line and the discharging gas outlet line, being connected between standby adsorption tanks and the vacuum regeneration pipeline opened, standby adsorption tanks are regenerated; Make first adsorption tanks and second adsorption tanks recover the process that hockets absorption and regenerate simultaneously.
2. spare adsorption method for recovering oil gas as claimed in claim 1 is characterized in that, judges by the densimeter of being located on the discharging gas outlet line whether the oil gas treating capacity surpasses the processing load of first adsorption tanks and second adsorption tanks.
3. spare adsorption method for recovering oil gas as claimed in claim 1 is characterized in that, this oil gas treating capacity is to detect by the flowmeter of being located on the oil gas suction line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101736031A CN101274191B (en) | 2007-12-28 | 2007-12-28 | Spare adsorption method for recovering oil gas |
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| CN2007101736031A CN101274191B (en) | 2007-12-28 | 2007-12-28 | Spare adsorption method for recovering oil gas |
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| CN101274191A CN101274191A (en) | 2008-10-01 |
| CN101274191B true CN101274191B (en) | 2011-07-20 |
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Families Citing this family (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 |
| CN102836564A (en) * | 2012-08-31 | 2012-12-26 | 南京理工大学 | Condensation and adsorption-combined organic solvent recovering device |
| CN103933828A (en) * | 2014-04-30 | 2014-07-23 | 中国石油化工股份有限公司 | Multi-stage adsorption type oil gas recycling system and recycling process thereof |
| CN115585395B (en) * | 2021-07-06 | 2024-08-23 | 中国石油化工股份有限公司 | Device and method for collecting volatile matters in oil storage tank/pool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036336A (en) * | 1988-03-30 | 1989-10-18 | 环球油品公司 | From fluid streams, remove the combined method of hydrogen sulfide |
| US6066192A (en) * | 1995-12-06 | 2000-05-23 | Cosmo Engineering Co., Ltd. | Method of treating or recovering gaseous hydrocarbon contained in waste gas |
| CN1334313A (en) * | 2000-07-13 | 2002-02-06 | 张国瑞 | Adsorption-absorption process for recovering oil gas |
| CN2597058Y (en) * | 2003-01-17 | 2004-01-07 | 李从堂 | Carbon adsorption cold washing device for recovering oil and gas |
-
2007
- 2007-12-28 CN CN2007101736031A patent/CN101274191B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036336A (en) * | 1988-03-30 | 1989-10-18 | 环球油品公司 | From fluid streams, remove the combined method of hydrogen sulfide |
| US6066192A (en) * | 1995-12-06 | 2000-05-23 | Cosmo Engineering Co., Ltd. | Method of treating or recovering gaseous hydrocarbon contained in waste gas |
| CN1334313A (en) * | 2000-07-13 | 2002-02-06 | 张国瑞 | Adsorption-absorption process for recovering oil gas |
| CN2597058Y (en) * | 2003-01-17 | 2004-01-07 | 李从堂 | Carbon adsorption cold washing device for recovering oil and gas |
Non-Patent Citations (1)
| Title |
|---|
| CN 2597058 Y,说明书第2-3页、说明书附图. |
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Application publication date: 20081001 Assignee: Shanghai Qi Yaoxin Energy Technology Co. Ltd Assignor: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) Contract record no.: 2012990000833 Denomination of invention: Spare adsorption method for recovering oil gas Granted publication date: 20110720 License type: Exclusive License Record date: 20121116 |
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Effective date of registration: 20151214 Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Building 1 room 629 Patentee after: Shanghai shine Heavy Industry Co., Ltd. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) |
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Effective date of registration: 20151225 Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee after: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Building 1 room 629 Patentee before: Shanghai shine Heavy Industry Co., Ltd. |