CN103386246B - The method of gasoline is reclaimed containing gasoline mixture body - Google Patents
The method of gasoline is reclaimed containing gasoline mixture body Download PDFInfo
- Publication number
- CN103386246B CN103386246B CN201310330238.6A CN201310330238A CN103386246B CN 103386246 B CN103386246 B CN 103386246B CN 201310330238 A CN201310330238 A CN 201310330238A CN 103386246 B CN103386246 B CN 103386246B
- Authority
- CN
- China
- Prior art keywords
- gasoline
- adsorption
- recovery
- adsorption tower
- steam
- 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.)
- Active
Links
Abstract
Of the present inventionly reclaim the method for gasoline containing gasoline mixture body, relate to the technique that adsorbing separation reclaims gasoline in gas station and gasoline Storage Tank gasoline vapor and air gas mixture.Mainly solve existing pressure swing adsorption method and membrane separation technique is not high to gasoline recovery rate in gasoline mixture body, after purification, in emission gases, gasoline vapor content can not reach the problem of environmental emission standard.Both can the recovery gasoline of high-recovery, discharge gas can be made again to reach environmental emission standard simultaneously.This method is filled with in the adsorption recovery system of the adsorption tower of adsorbent at least three, and system is run according to program cycle, and each circular flow experience absorption 1 of adsorption tower, absorption 2, steam flush, purges cooling step.Rinse the steam after adsorption tower obtain gasoline and condensed water obtains gasoline after water-oil separating by collecting and cooling.The process flow diagram of retracting device is shown in specification digest accompanying drawing.
Description
Technical field
The present invention relates to the purification of specific components in gaseous mixture, recovery method, particularly absorption method from containing the method reclaiming gasoline the mist of gasoline vapor.
Background technology
The gas containing gasoline vapor can be discharged in gasoline production, accumulating and gas station are to automobile fuel filler process, if do not carried out high efficiency recovery and purified treatment to it, not only can cause environmental pollution, be also the significant wastage of resource, simultaneously still larger security against fire hidden danger.At present membrane separation process, solvent absorption, condensation method and absorption method are adopted usually to this type of gas cleaning processing mode.Due in gasoline production, accumulating and gas station larger to the change in concentration can discharged containing gasoline vapor in automobile fuel filler process, oil vapour may be made in pressure process to reach explosion limit and cause potential safety hazard, limit membrane separation process, solvent absorption, the recovery of condensation method and purification efficiency, therefore in the device for recovering oil and gas such as gas station, mostly adopt the gasoline vapor in absorption method recovered oil oxygen mixture, but existing absorbing recovery device adopts 2 tower adsorption process, the recovery benefit of gasoline vapor and the purification efficiency to gasoline vapor can not be taken into account, the air after purification is caused still not reach environmental emission standard containing gasoline vapor.Also result in the reduction of tail gas recycle benefit simultaneously.
Summary of the invention
The object of the present invention is to provide and a kind ofly high efficiency can reclaim the method for gasoline vapor in gasoline vapor mist, the recovery method of the gasoline vapor of the rate of recovery high (rate of recovery is greater than 99.9%) of gasoline vapor, purification precision is high, automaticity is high, operating cost is low high-efficiency environment friendly.
The present invention adopt at least 3 be filled with active carbon or, the active carbon of 1 ~ 95%, the activated alumina of 1 ~ 80%, the adsorption tower of the compound adsorbent of the silica gel of 0 ~ 70%, mist containing gasoline vapor by air-introduced machine from gasoline tank, the regions such as fuel charger are extracted into device for recovering oil and gas and enter the adsorption tower being in absorption 2 step, in gaseous mixture, most gasoline vapor is by the adsorbent loaded in adsorption tower, enter by the gas of adsorption step 2 adsorption tower being in adsorption step 1 not discharged by the direct emptying of air that the adsorbent loaded in adsorption step 1 adsorption tower obtains low gasoline content from the outlet of adsorption step 1 by a small amount of gasoline vapor adsorbed.Adsorbent gasoline vapor in the adsorption tower of adsorption step 2 is saturated or close to time saturated, the processing step of device switches, originally the adsorption tower of adsorption step 1 is switched to adsorption step 2, the adsorption tower of adsorption step 2 is switched to steam regeneration step, in steam regeneration step, utilize water vapour or rinse through the adsorption tower of superheated steam to absorbing gasoline steam of heating the gasoline desorb making to adsorb in adsorbent, obtain the mist of steam and gasoline vapor, namely mist obtains the mixed liquor of gasoline and water through cooling, the mixed liquor being separated gasoline and water can obtain gasoline, adsorption tower after steam flush regeneration place cooling or pass into air purge cooling after etc. to be switchedly enter adsorption step 1.Adsorption tower is through adsorption step 1, and adsorption step 2, the cycling of steam flush step and cooling step can reach the object of continuous reclaiming clean gasoline vapor.
The method of gasoline in adsorption technology Recovery Purifying mist of the present invention, it is characterized in that being filled with in the absorbing recovery device of the adsorption tower of specifying adsorbent at least three, device runs according to program cycle, each adsorption tower carries out absorption 1 successively, absorption 2, steam flush, cooling step.The mixture obtaining gasoline and water from the condensate liquid rinsing steam obtains the gasoline of recovery after water-oil separating, owing to have employed two step absorption and steam flush, the rate of recovery of gasoline vapor can reach 99.9%, and after absorption, in emission gases, gasoline vapor content is less than 10mg/m
3.
Of the present inventionly reclaim the method for gasoline containing gasoline mixture body, the adsorbent loaded in retracting device adsorption tower be active carbon or, the active carbon of 1 ~ 95%, the activated alumina of 1 ~ 80%, the compound of the silica gel of 0 ~ 70%.Process is-30 ~ 80 DEG C containing the pressure (adsorption step pressure) of gasoline vapor mist according to being the temperature that 0.1 ~ 2MPa (absolute pressure) processes mist containing the pressure of gasoline vapor mist, the steam pressure rinsing adsorption tower is 0.1 ~ 2MPa (absolute pressure), and temperature is 90 ~ 300 DEG C.First the gaseous mixture containing gasoline vapor come by gas station or gasoline Storage Tank the gasoline vapors recovery blower fan enters the adsorption tower that absorbing recovery device is in adsorption step 2 and enters the adsorption tower being in adsorption step 1 again through pipeline and valve, the gas that adsorption step 1 discharges can directly discharge in emptying, also can as the purge gas of adsorption tower cooling.
Method of the present invention comprises and adopts embodiment 1 or and the combination of unit stated of embodiment 2 and fractionation.
The present invention, compared with existing adsorption method of separation, has following technical characterstic and effect
One, the absorbing, recovering and purifying gasoline vapor technique containing two adsorption steps that the present invention adopts, absorption 2 processes by air-introduced machine from gasoline tank, the gas that the gasoline vapor content that the regions such as fuel charger are extracted into is higher, the gas that the gasoline vapor content of absorption 1 process after adsorbing 2 reclaiming cleans is lower, and adopt the automatic control systems such as PLC by adsorption tower by absorption 1, absorption 2, steam flush, the order circular flow of cooling reaches the efficiency that both improve and reclaim gasoline from steam flush cooling fluid, again reduce the gasoline vapor content of gas remnants after retracting device purification, the rate of recovery of gasoline vapor is made to reach more than 99.9%.
Two, the steam (comprise adopting and Steam Heating is become superheated steam) that the present invention adopts rinses the steam after regenerative adsorption tower and cooling down flushing, and from condensate liquid the process of separation and recovery gasoline, achieve the abundant regeneration of adsorption tower and the simple and easy to do object achieved from the gasoline vapors recovery gasoline products.
Detailed description of the invention
Embodiment 1
The device of the embodiment of the method for the gasoline vapor in absorption method recovery mist is filled with adsorption tower and 18 program-controlled valves of acticarbon by three, an electrothermal steam generator (or steam boiler), a water cooler (or aerial cooler), a water and oil separator, an air blast and corresponding pipeline are formed by connecting.
When native system runs, controlled the switch of each sequencing valve by computer follow procedure (according to table 1 sequential).The operation of device is below described by the 1st step in table 2 sequential and the 2nd step.Pressure is 0.11MPa (absolute pressure), temperature be 5 DEG C enter from gas station's nozzle exhaust tube and gasoline tank gas outlet by drawing the air Mixture containing gasoline vapor that phoenix machine extracts the adsorption tower C being in adsorption step 2 (A2), most gasoline vapor in gaseous mixture is by the active carbon class adsorbent loaded in adsorption tower, gas after absorption enters the adsorption tower A being in adsorption step 1 (A1) through sequencing valve and pipeline, gasoline vapor is adsorbed further by the acticarbon loaded in adsorption tower, air after absorption is through program-controlled valve and pipeline emptying discharge, the switching of the adsorption tower of adsorption step 1 (A1) is entered adsorption step 2 (A2) according to time-scale 2 sequential by the 6 hours PLC reaching setting when adsorption time, the adsorption tower of adsorption step 2 (A2) enters steam flush step (H), the steam rinsed obtains condensate liquid through cooler cooling, condensate liquid is separated the gasoline products that can be recycled through oil water separator, switch after steam flush reaches 3 hours of setting and enter air purge step (C), adsorption tower after air purge step prepares to enter the adsorption step 1 (A1) next time circulated.The gas of gasoline vapor can be contained by Recovery Purifying endlessly according to the sequential circulation of table 1, and reclaim gasoline.The schematic flow sheet of embodiment 1 device is shown in Fig. 1.
Table 1 embodiment 1 process timing sequence table
Embodiment 2
The device of the embodiment of the method 2 of the gasoline vapor in absorption method recovery mist is filled with adsorption tower and 24 program-controlled valves of acticarbon by four, a set of PLC control system, an electrothermal steam generator (or steam boiler), a water cooler (or aerial cooler), an oil water separator and corresponding pipeline are formed by connecting.
When native system runs, controlled the switch of each sequencing valve by PLC control system follow procedure (according to table 2 sequential).Below use the operation of 1 point of cycle and 2 points of cycle explanation devices in table 2 sequential.Pressure is 0.13MPa (absolute pressure), temperature be 35 DEG C enter from gas station's nozzle exhaust tube and gasoline tank gas outlet by drawing the air Mixture containing gasoline vapor that phoenix machine extracts the adsorption tower D being in adsorption step 2 (A2), most gasoline vapor in gaseous mixture is by the active carbon class adsorbent loaded in adsorption tower, gas after absorption enters the adsorption tower A being in adsorption step 1 (A1) through sequencing valve and pipeline, gasoline vapor is adsorbed further by the acticarbon loaded in adsorption tower, air after absorption enters adsorption tower B through program-controlled valve and pipeline and carries out air purge step (C), adsorption tower C is in the steam that steam flush step (H) produces by electrothermal steam generator (or steam boiler) and enters adsorption tower C through sequencing valve and pipeline, the steam rinsed after adsorption tower obtains condensate liquid through cooler, condensate liquid is separated the gasoline namely obtaining recovery through oil water separator.When adsorption time reaches the adsorption time such as 3 hours of setting, the adsorption tower A of adsorption step 1 (A1) switching is entered adsorption step 2 (A2) according to time-scale 2 sequential by PLC, the adsorption tower D of adsorption step 2 (A2) enters steam flush step (H), the adsorption tower C switching of steam flush step (H) enters air purge step (C), and the adsorption tower B after air purge step enters adsorption step 1 (A1).The gas of gasoline vapor can be contained by Recovery Purifying endlessly according to the sequential circulation of table 2, and reclaim gasoline.The schematic flow sheet of embodiment 2 device is shown in Fig. 2.
Table 2 embodiment 2 process timing sequence table
| Divide the cycle | 1 | 2 | 3 | 4 |
| A tower | A1 | A2 | H | C |
| B tower | C | A1 | A2 | H |
| C tower | H | C | A1 | A2 |
| D tower | A2 | H | C | A1 |
Accompanying drawing explanation
Figure of description 1 describes the schematic diagram that an absorption method be made up of 3 adsorption towers reclaims gasoline vapor device in mist.Most gasoline vapor in adsorption tower C gaseous mixture is entered by the adsorbent loaded in adsorption tower by the left lower channel of Fig. 1 through sequencing valve by drawing the air Mixture containing gasoline vapor that phoenix machine extracts, gas after absorption enters adsorption tower A through pipeline and sequencing valve again, gasoline vapor is adsorbed further by the adsorbent loaded in adsorption tower, air after absorption is discharged by Fig. 1 upper right side through program-controlled valve and pipeline, meanwhile adsorption tower B is in steam flush step and air purge step, in the steam flush step of front half period, the sequencing valve steam opened on jet chimney indicates the pipeline access to plant of steam by Fig. 1 upper right side and rinses adsorption tower B through sequencing valve and pipeline, rinse the steam after adsorption tower B and enter cooler cooling acquisition condensate liquid through sequencing valve and pipeline, condensate liquid is separated the gasoline that can be recycled through oil water separator, at the air purge step in later half cycle, sequencing valve on steam off pipeline and open the sequencing valve on air duct by air duct access to plant air by the water vapour stayed after steam flush step in adsorption tower blow out adsorption tower and by the temperature of adsorption tower reduce make adsorption tower B perform the preparation entering adsorption step.The opening and closing of the control sequencing valve that PLC control system moves in circles according to the process timing sequence table of table 1 can purify the gas containing gasoline vapor endlessly and reclaim gasoline.
Figure of description 2 describes the schematic diagram that an absorption method be made up of 4 adsorption towers reclaims gasoline vapor device in mist.Adsorption tower D is entered by the air Mixture containing gasoline vapor of drawing the extraction of phoenix machine, most gasoline vapor in gaseous mixture is by the adsorbent loaded in adsorption tower, gas after absorption enters adsorption tower A through sequencing valve and pipeline again, gasoline vapor is adsorbed further by the adsorbent loaded in adsorption tower, air after absorption enters adsorption tower B through program-controlled valve and pipeline and purges adsorption tower, the discharge of pipes that air after purging is illustrated by Fig. 2 lower right through pipeline and sequencing valve, now steam is indicated the pipeline access to plant of steam by Fig. 2 upper right side, enter adsorption tower C through sequencing valve and pipeline and steam flush is carried out to adsorption tower C, the steam rinsed after adsorption tower obtains condensate liquid through cooler, condensate liquid is separated the gasoline namely obtaining recovery through oil water separator.When adsorption time reaches the adsorption time such as 3 hours of setting, the opening and closing of the control sequencing valve that PLC moves in circles according to time-scale 2 sequential containing the gas of gasoline vapor, and can reclaim gasoline by Recovery Purifying endlessly.
Claims (3)
1. one kind contains the method for gasoline in gasoline mixture body with adsorption technology Recovery Purifying, it is characterized in that being filled with in the adsorption recovery system of the adsorption tower of specifying adsorbent at least three, system is run according to program cycle, each adsorption tower carries out absorption 1 successively, absorption 2, steam flush, purges cooling step; First the gaseous mixture containing gasoline vapor come by gas station or gasoline Storage Tank the gasoline vapors recovery blower fan enters the adsorption tower that absorbing recovery device is in adsorption step 2 and enters the adsorption tower being in adsorption step 1 again through pipeline and valve, the direct emptying discharge of the gas that adsorption step 1 discharges, the mixture obtaining gasoline and water from the condensate liquid rinsing steam obtains the gasoline of recovery after water-oil separating, owing to have employed two step absorption and steam flush, the rate of recovery of gasoline vapor can reach 99.9%.
2. adsorption technology Recovery Purifying according to claim 1 is containing the method for gasoline in gasoline mixture body, it is characterized in that adsorbent that adsorbent bed loads be active carbon or, the active carbon of 1 ~ 95%, the activated alumina of 1 ~ 80%, the compound of the silica gel of 0 ~ 70%.
3. adsorption technology Recovery Purifying according to claim 1 is containing the method for gasoline in gasoline mixture body, it is characterized in that adsorption step pressure be 0.1 ~ 2MPa (absolute pressure) temperature is-30 ~ 80 DEG C, the steam pressure rinsing adsorption tower is 0.1 ~ 2MPa (absolute pressure), and temperature is 90 ~ 300 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330238.6A CN103386246B (en) | 2013-08-01 | 2013-08-01 | The method of gasoline is reclaimed containing gasoline mixture body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330238.6A CN103386246B (en) | 2013-08-01 | 2013-08-01 | The method of gasoline is reclaimed containing gasoline mixture body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103386246A CN103386246A (en) | 2013-11-13 |
| CN103386246B true CN103386246B (en) | 2016-03-30 |
Family
ID=49530776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310330238.6A Active CN103386246B (en) | 2013-08-01 | 2013-08-01 | The method of gasoline is reclaimed containing gasoline mixture body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103386246B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105194972A (en) * | 2014-06-26 | 2015-12-30 | 中国石油化工集团公司 | Method for treating volatile matter in cleaning process of open type oil storage tank |
| CN107474949A (en) * | 2017-10-18 | 2017-12-15 | 青岛瑞发恩环保科技有限公司 | The method and system for use in carrying of grease are handled in a manner of reproducible using particle charcoal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371966A (en) * | 2007-08-23 | 2009-02-25 | 四川省达科特化工科技有限公司 | Pressure-swing adsorption novel art for recovering ethylene and hydrogen from dry gas of oil-extraction plant |
| CN203061024U (en) * | 2012-11-27 | 2013-07-17 | 宁波市中瑞环保科技有限公司 | Organic waste gas adsorption and steam stripping recovery and treatment device |
-
2013
- 2013-08-01 CN CN201310330238.6A patent/CN103386246B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371966A (en) * | 2007-08-23 | 2009-02-25 | 四川省达科特化工科技有限公司 | Pressure-swing adsorption novel art for recovering ethylene and hydrogen from dry gas of oil-extraction plant |
| CN203061024U (en) * | 2012-11-27 | 2013-07-17 | 宁波市中瑞环保科技有限公司 | Organic waste gas adsorption and steam stripping recovery and treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103386246A (en) | 2013-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104801146B (en) | Device and process for recovering volatile organic gas | |
| CN202844825U (en) | Device for recycling organic solvent waste gas by active carbon series adsorption and vacuum desorption | |
| CN106179287B (en) | Adsorbent reactivation and regeneration off gases processing method during coke-stove gas temp.-changing adsorption desulfurization | |
| CN103566619A (en) | Method for recovering multi-component organic gas mixture | |
| CN104524929A (en) | Efficient energy-saving purification and recovery process of tail gas containing volatile organic compounds (VOCs) | |
| CN103990351A (en) | Purification recovery device and technology for volatility organic waste gas | |
| CN112870919B (en) | Flue gas CO 2 Hypergravity regeneration energy-saving process for trapping system | |
| CN101721878A (en) | Method and system for capturing CO2 by temperature-lowering absorption and low-voltage desorption | |
| CN105013288A (en) | Vacuum drying active carbon waste gas management process and vacuum drying active carbon waste gas management apparatus | |
| CN203540289U (en) | Treating and recovering device of organic waste gas with low concentration and large air volume | |
| CN204619569U (en) | The exhaust treatment system that a kind of epoxychloropropane produces in producing | |
| CN103463932A (en) | Method and device for treating and recycling organic exhaust gas with low concentration and large air volume | |
| CN109078459A (en) | A kind of device and technology of absorption-adsorption-desorption cycle resource utilization volatile organic gases | |
| CN104923032A (en) | Novel process and novel device for regenerating adsorption materials with activated carbon fibers | |
| CN211025700U (en) | Methyl chloride tail gas recovery device | |
| CN103386246B (en) | The method of gasoline is reclaimed containing gasoline mixture body | |
| CN202226647U (en) | Oil gas recovering system for gas station | |
| CN109503314B (en) | Method for recovering trichloroethane in tail gas in sucralose production | |
| CN205323494U (en) | Organic waste gas solvent absorbs retrieves clean system | |
| CN104190205A (en) | Exhaust gas recovery cycle working method and device | |
| CN100450586C (en) | Process for removing hydrogen sulphide from carbon bisulfide waste gas and apparatus therefor | |
| CN103566702A (en) | Method for recycling gas generated in benzene lading process at wharfs | |
| CN104984628A (en) | Organic waste gas adsorption recovery process | |
| CN103120882A (en) | Automatic control method for cycling operation of organic waste gas recovery adsorption tank | |
| CN204841345U (en) | Vacuum drying active carbon waste gas pollution control and treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |