CN104096449A - Technology for compressing petroleum gas in gas production manner for vehicle loading and ship loading - Google Patents
Technology for compressing petroleum gas in gas production manner for vehicle loading and ship loading Download PDFInfo
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- CN104096449A CN104096449A CN201410330906.XA CN201410330906A CN104096449A CN 104096449 A CN104096449 A CN 104096449A CN 201410330906 A CN201410330906 A CN 201410330906A CN 104096449 A CN104096449 A CN 104096449A
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Abstract
The invention relates to a technology for compressing petroleum gas in a gas production manner for vehicle loading and ship loading. The technology comprises activated carbon adsorption towers A and B. Petroleum gas passes through gas inlet pipelines and is conveyed to the activated carbon adsorption towers A and B in turns via gas inlet valves on the activated carbon adsorption towers A and B, the petroleum gas which is adsorbed by the activated carbon adsorption towers is adsorbed into a vacuum pump separating tank in turns by a vacuum pump through discharge valves, a peroxy concentration analyzer and a hydrocarbon chemical combination concentration analyzer are arranged at the position of a discharge outlet of the vacuum pump separating tank, the petroleum gas which is analyzed by the analyzer to meet the standards is conveyed into a compressor via the gas inlet valves, and the petroleum gas which does not meet the standards is conveyed back to the gas inlet pipelines through the gas discharge valves and a disqualified gas flow return pipeline; the petroleum gas which is compressed via the compressor subjected to heat exchange via a heat exchanger is conveyed into a liquefied gas separating tank, water in the liquefied gas separating tank is separated to be discharged outside, and the petroleum gas is conveyed into a liquefied gas storage tank through a liquefied gas conveying pump. The system can be used for effectively recycling hydrocarbons in the petroleum gas.
Description
Technical field
The present invention relates to organic exhaust gas recovery and utilization technology, be specifically related to a kind ofly load entrucking onto ship gas superzapping contracting oil gas technique.
Background technology
Effective recovery technology of the domestic and international hydrocarbon for oil gas, is mainly used charcoal absorption to add absorption technique at present, condensation process, and film adds absorption technique.
Charcoal absorption absorption technique need to be used absorbent, is not having the occasion of absorbent to use.
It is high that condensation recovery process has energy consumption, the feature of the easy secondary volatilization of low temperature oil product of recovery.
Film adds absorption technique need to use absorbent equally, is not having the occasion of absorbent to use.
Summary of the invention
The object of the invention is, the problem existing for prior art, provide a kind of and can effectively reclaim the hydrocarbon in oil gas, without absorbent and cryogenic refrigeration, reclaim hydrocarbon and can be made into meet compression petroleum gas that GB requires storage a kind of and will reclaim technique and the system that entrucking or shipment oil gas are made compression oil gas.
For achieving the above object, the technical solution used in the present invention is: a kind of entrucking shipment gas superzapping contracting oil gas technique is provided, it is characterized in that, described technique comprises two activated carbon adsorber A that are connected in parallel and activated carbon adsorber B is at least set, by the oil gas of discharging in entrucking or shipment process by air inlet pipeline the first air intake valve on activated carbon adsorber A and the second air intake valve on activated carbon adsorber B send in turn respectively activated carbon adsorber A and activated carbon adsorber B, oil gas after being adsorbed by activated carbon adsorber is drawn in vavuum pump knockout drum by vavuum pump respectively in turn by the first outlet valve on activated carbon adsorber A and the second outlet valve on activated carbon adsorber B, at the discharging opening place of vavuum pump knockout drum, be provided with peroxide concentration analyzer and nytron concentration analyzer, oil gas after oxygen concentration analyzer and the analysis of nytron concentration analyzer is standard compliant sends into compressor compresses by the 3rd air intake valve, the non-compliant air inlet pipeline that sends back to oil gas by the 3rd air bleeding valve and defective air-flow return pipe line, oil gas after compressor compression is sent in liquefied gas knockout drum after by heat exchanger heat exchange, and oil gas discharges water separation at liquefied gas knockout drum Inner, and oil gas is sent in liquefied gas storage tank by liquefied gas delivery pump.
Wherein preferred technical scheme is, described activated carbon adsorber A and activated carbon adsorber B alternately adsorb oil gas, and what replace is spaced apart 15～20 minutes and once switches.
Further preferred technical scheme is, it is that oil gas should meet oxygen concentration simultaneously and is less than 6.5%, the condition that hydrocarbon concentration is greater than 35% that described oil gas meets standard.
Further preferred technical scheme also has, and described heat exchanger is down to the oil temperature of oil liquefied gas 32 degree or when following, just petroleum liquid fossil pneumatic transmission is entered to knockout drum.
For achieving the above object, another technical solution used in the present invention is: a kind of entrucking shipment gas superzapping contracting oil gas system is provided, it is characterized in that, described system comprises two activated carbon adsorber A that are connected in parallel and activated carbon adsorber B is at least set, the oil gas of discharging in entrucking or shipment process is connected with the second air intake valve on activated carbon adsorber B with the first air intake valve on activated carbon adsorber A respectively by air inlet pipeline, after the second outlet valve parallel connection on the first outlet valve on activated carbon adsorber A and activated carbon adsorber B successively with vavuum pump, vavuum pump knockout drum connects, at the discharging opening place of vavuum pump knockout drum, peroxide concentration analyzer and nytron concentration analyzer have been arranged in parallel, discharging opening place at vavuum pump knockout drum is also connected in series with the 3rd air intake valve and compressor successively, at the discharging opening place of vavuum pump knockout drum, be also connected in parallel to the 3rd air bleeding valve and defective air-flow return pipe line, one end of defective air-flow return pipe line is connected in parallel on air inlet pipeline, compressor output end is connected with the input of heat exchanger, the output of device heat exchange is connected with the input of liquefied gas knockout drum, on liquefied gas knockout drum, be provided with draining valve, liquefied gas knockout drum is provided with the input connecting pipe with liquefied gas delivery pump, and liquefied gas carries delivery side of pump to be connected with liquefied gas storage tank.
Wherein preferred technical scheme is, described oxygen concentration analyzer and nytron concentration analyzer are connected in parallel on the analysis transfer pipeline of the oil gas between vavuum pump knockout drum and the 3rd air intake valve, and described the 3rd air bleeding valve is also connected in parallel on to be analyzed on transfer pipeline.
Preferred technical scheme also has, in the upper end of described activated carbon adsorber A and activated carbon adsorber B, be respectively equipped with first row air valve and second row air valve, after first row air valve and second row air valve are connected in parallel by pipeline, by blast pipe, unnecessary its gas of lightweight after activated carbon adsorber absorption is entered to atmosphere.
Preferred technical scheme also has, and is connected with vavuum pump back pressure pipeline and vacuum medium back flow pipeline between described vavuum pump knockout drum and the entrance of vavuum pump.
Preferred technical scheme also has, and between described liquefied gas knockout drum and air inlet pipeline, by on-condensible gas return duct, is connected with pressure reducer.
Further preferred technical scheme also has, described the first air intake valve, the second air intake valve, the 3rd air intake valve, the first outlet valve, the second outlet valve, the 3rd air bleeding valve, first row air valve and second row air valve are magnetic valve, and described magnetic valve, vavuum pump, compressor and liquefied gas delivery pump are all connected with Programmable Logic Controller.
Compared with prior art, the invention has the beneficial effects as follows: this will reclaim entrucking or load technique and the system that oil gas is made compression oil gas onto ship, hydrocarbon in oil gas can be reclaimed become valuable product completely, make concentration of oil and gas discharged <25g/m
3, efficiency of oil & gas processing reaches 95%, and produces the compression oil gas that meets GB requirement.And can effectively reclaim the hydrocarbon in oil gas, without absorbent and cryogenic refrigeration, reclaim hydrocarbon and can be made into compression petroleum gas the storage that meets GB requirement.
Accompanying drawing explanation
Fig. 1 is the system diagram that the present invention receives entrucking shipment gas superzapping contracting oil gas.
In figure: 1-activated carbon adsorber A, 2-activated carbon adsorber B, 3-air inlet pipeline, 4-vavuum pump, 5-vavuum pump knockout drum, 6-compressor, 7-liquefied gas knockout drum, 8-liquefied gas delivery pump, 9-liquefied gas storage tank, 10-vavuum pump back pressure pipeline, 11-vacuum medium back flow pipeline, 12-on-condensible gas return duct, 13-pressure reducer, the defective air-flow return pipe of 14-line, 15-peroxide concentration analyzer, 16-nytron concentration analyzer, 17-heat exchanger, 18-draining valve, 19-the first air intake valve, 20-the first outlet valve, 21-the second air intake valve, 22-the second outlet valve, 23-the 3rd air intake valve, 24-the 3rd air bleeding valve, 25-first row air valve, 26-second row air valve.
The specific embodiment
As shown in Figure 1, the present invention is a kind of entrucking shipment gas superzapping contracting oil gas technique, this technique comprises two activated carbon adsorber A1 that are connected in parallel and activated carbon adsorber B2 is at least set, by the oil gas of discharging in entrucking or shipment process by air inlet pipeline 3 the first air intake valve 19 on activated carbon adsorber A1 and the second air intake valve 21 on activated carbon adsorber B2 send in turn respectively activated carbon adsorber A1 and activated carbon adsorber B2, oil gas after being adsorbed by activated carbon adsorber is drawn in vavuum pump knockout drum 5 by vavuum pump 4 respectively in turn by the first outlet valve 20 on activated carbon adsorber A1 and the second outlet valve 22 on activated carbon adsorber B2, at the discharging opening place of vavuum pump knockout drum 5, be provided with peroxide concentration analyzer 15 and nytron concentration analyzer 16, oil gas after oxygen concentration analyzer 15 and nytron concentration analyzer 16 are analyzed is standard compliant sends into compressor 6 compressions by the 3rd air intake valve 23, the non-compliant air inlet pipeline 3 that sends back to oil gas by the 3rd air bleeding valve 24 and defective air-flow return pipe line 14, oil gas after compressor 6 compression is sent in liquefied gas knockout drum 7 after by heat exchanger 17 heat exchange, and oil gas discharges water separation at liquefied gas knockout drum 7 Inner, and oil gas is sent in liquefied gas storage tank 9 by liquefied gas delivery pump 8.
Preferred embodiment is in the present invention, and described activated carbon adsorber A1 and activated carbon adsorber B2 alternately adsorb oil gas, and what replace is spaced apart 15～20 minutes and once switches.
Further preferred embodiment is in the present invention, and it is that oil gas should meet oxygen concentration simultaneously and is less than 6.5%, the condition that hydrocarbon concentration is greater than 35% that described oil gas meets standard.
Further preferred embodiment also has in the present invention, and described heat exchanger 17 is down to the oil temperature of petroleum liquid fossil gas 32 degree or when following, just petroleum liquid fossil pneumatic transmission is entered to knockout drum.
Another technical solution used in the present invention is: the system that a kind of entrucking shipment gas superzapping contracting oil gas is provided, this system comprises two activated carbon adsorber A1 that are connected in parallel and activated carbon adsorber B2 is at least set, the oil gas of discharging in entrucking or shipment process is connected with the second air intake valve 21 on activated carbon adsorber B2 with the first air intake valve 19 on activated carbon adsorber A1 respectively by air inlet pipeline 3, after the second outlet valve 22 parallel connections on the first outlet valve 20 on activated carbon adsorber A1 and activated carbon adsorber B2 successively with vavuum pump 4, vavuum pump knockout drum 5 connects, at the discharging opening place of vavuum pump knockout drum 5, peroxide concentration analyzer 15 and nytron concentration analyzer 16 have been arranged in parallel, discharging opening place at vavuum pump knockout drum 5 is also connected in series with the 3rd air intake valve 23 and compressor 6 successively, at the discharging opening place of vavuum pump knockout drum 5, be also connected in parallel to the 3rd air bleeding valve 24 and defective air-flow return pipe line 14, one end of defective air-flow return pipe line 14 is connected in parallel on air inlet pipeline 3, compressor 6 outputs are connected with the input of heat exchanger 17, the output of heat exchanger 17 is connected with the input of liquefied gas knockout drum 7, on liquefied gas knockout drum 7, be provided with draining valve 18, liquefied gas knockout drum 7 is provided with the input connecting pipe with liquefied gas delivery pump 8, and the output of liquefied gas delivery pump 8 is connected with liquefied gas storage tank 9.
Preferred embodiment is in the present invention, described oxygen concentration analyzer 15 and nytron concentration analyzer 16 are connected in parallel on the analysis transfer pipeline of the oil gas between vavuum pump knockout drum 5 and the 3rd air intake valve 23, and described the 3rd air bleeding valve 24 is also connected in parallel on to be analyzed on transfer pipeline.
Preferred embodiment also has in the present invention, in the upper end of described activated carbon adsorber A1 and activated carbon adsorber B2, be respectively equipped with first row air valve 25 and second row air valve 26, after first row air valve 25 and second row air valve 26 are connected in parallel by pipeline, by blast pipe, unnecessary its gas of lightweight after activated carbon adsorber absorption is entered to atmosphere.
Preferred embodiment also has in the present invention, is connected with vavuum pump back pressure pipeline 10 and vacuum medium back flow pipeline 11 between described vavuum pump knockout drum 5 and the entrance of vavuum pump 4.
Preferred embodiment also has in the present invention, between described liquefied gas knockout drum 7 and air inlet pipeline 3, by on-condensible gas return duct 12, is connected with pressure reducer 13.
Further preferred embodiment also has in the present invention, described the first air intake valve 19, the second air intake valve 21, the 3rd air intake valve 23, the first outlet valve 20, the second outlet valve 22, the 3rd air bleeding valve 24, first row air valve 25 and second row air valve 26 are magnetic valve, and described magnetic valve, vavuum pump 4, compressor 6 and liquefied gas delivery pump 8 are all connected with Programmable Logic Controller.
It is a kind of that by reclaiming entrucking or shipment gas, to make the technical process of compression oil gas as follows:
1, oil gas is sent into activated carbon absorption tower A1 and the activated carbon absorption tower B2 of gas recovery system for oil through gas circuit pipeline 3, and activated carbon adsorber mainly adsorbs the hydrocarbon in oil gas.Two activated carbon beds alternations, first oil gas enter activated carbon absorption tower A1, and the first air intake valve 19 and first queues valve 25 and opens, and the first outlet valve 20, the second air intake valve 21, the second outlet valve 22 are closed.After activated carbon absorption tower A1 absorption is saturated, the first air intake valve 19, the second outlet valve 22, second queue valve 26 and close, and the first outlet valve 20, the second air intake valve 21, second queue valve 26 and open.Activated carbon adsorber B2 carries out oil gas absorption, and activated carbon adsorber A1 carries out oil gas desorb.After activated carbon absorption tower B2 absorption is saturated, the first outlet valve 20, the second air intake valve 21, second queue valve 26 and close, the first air intake valve 19, first queues valve 25, the second outlet valve 22 is opened, activated carbon absorption tower A carries out oil gas absorption, and activated carbon absorption tower B carries out oil gas desorb.Two adsorption tower switching cycles are 15-20 minute.
2, oil gas desorb is implemented by vavuum pump 4, the adsorption tower extracting vacuum that the absorption of 4 pairs, vavuum pump is saturated, and first oil gas sent into vavuum pump knockout drum 5, after the working solution of vavuum pump 4 is separated, by vavuum pump medium back flow line 11, sends vavuum pump back to.For guaranteeing that vavuum pump 4 arranges safely vacuum back pressure line 10, carry a small amount of stripping gas to vacuum pump inlet, prevent vavuum pump excess load.
3, the oil gas in vavuum pump knockout drum 5 is analyzed through oxygen concentration analyzer 15 and nytron (HC) concentration analyzer 16, if can not meeting oxygen concentration simultaneously, the oil gas in vavuum pump knockout drum 5 is less than 6.5%, the condition that hydrocarbon concentration is greater than 35%, opens the 3rd air bleeding valve 24 and by defective gas return wire 14, sends desorb oil gas back to device portal.Again adsorb, to improve the hydrocarbon concentration in stripping gas, and reduce oxygen content.If oxygen concentration is less than 6.5%, hydrocarbon concentration is greater than 35%, opens the 3rd air intake valve 23 oil gas is sent into compressor 6.
4, the oil gas that is admitted to compressor 6 is compressed into after 8 kilograms, enters heat exchanger 17 and is cooled to 32 degree.Send into liquefied gas knockout drum 7.
5, fixed gas is sent device portal back to by fixed gas return wire 12, on circuit, pressure reducer 13 is set identical with entrance oil gas to adjust its pressure simultaneously.
6,, because contain water in oil gas, the water in liquefied gas separator 7 is discharged from the draining valve 18 of lower end.
7, high-quality liquefied petroleum gas is delivered to 9 storages of liquefied gas storage tank by liquefied gas delivery pump 8.
The invention is not restricted to above-mentioned embodiment, those skilled in the art make to any apparent improvement of above-mentioned embodiment or change, can not exceed the protection domain of design of the present invention and claims.
Claims (10)
1. gas superzapping contracting oil gas technique is loaded in an entrucking onto ship, it is characterized in that, described technique comprises two activated carbon adsorber A that are connected in parallel and activated carbon adsorber B is at least set, by the oil gas of discharging in entrucking or shipment process by air inlet pipeline the first air intake valve on activated carbon adsorber A and the second air intake valve on activated carbon adsorber B send in turn respectively activated carbon adsorber A and activated carbon adsorber B, oil gas after being adsorbed by activated carbon adsorber is drawn in vavuum pump knockout drum by vavuum pump respectively in turn by the first outlet valve on activated carbon adsorber A and the second outlet valve on activated carbon adsorber B, at the discharging opening place of vavuum pump knockout drum, be provided with peroxide concentration analyzer and nytron concentration analyzer, oil gas after oxygen concentration analyzer and the analysis of nytron concentration analyzer is standard compliant sends into compressor compresses by the 3rd air intake valve, the non-compliant air inlet pipeline that sends back to oil gas by the 3rd air bleeding valve and defective air-flow return pipe line, oil gas after compressor compression is sent in liquefied gas knockout drum after by heat exchanger heat exchange, and oil gas discharges water separation at liquefied gas knockout drum Inner, and oil gas is sent in liquefied gas storage tank by liquefied gas delivery pump.
2. entrucking as claimed in claim 1 shipment gas superzapping contracting oil gas technique, is characterized in that, described activated carbon adsorber A and activated carbon adsorber B alternately adsorb oil gas, and what replace is spaced apart 15～20 minutes and once switches.
3. entrucking as claimed in claim 2 shipment gas superzapping contracting oil gas technique, is characterized in that, it is that oil gas should meet oxygen concentration simultaneously and is less than 6.5%, the condition that hydrocarbon concentration is greater than 35% that described oil gas meets standard.
4. entrucking as claimed in claim 3 shipment gas superzapping contracting oil gas technique, is characterized in that, the oil temperature of oil liquefied gas is down to 32 degree with described heat exchanger or when following, ability enters knockout drum by petroleum liquid fossil pneumatic transmission.
5. the system of entrucking shipment gas superzapping contracting oil gas, it is characterized in that, described system comprises two activated carbon adsorber A that are connected in parallel and activated carbon adsorber B is at least set, the oil gas of discharging in entrucking or shipment process is connected with the second air intake valve on activated carbon adsorber B with the first air intake valve on activated carbon adsorber A respectively by air inlet pipeline, after the second outlet valve parallel connection on the first outlet valve on activated carbon adsorber A and activated carbon adsorber B successively with vavuum pump, vavuum pump knockout drum connects, at the discharging opening place of vavuum pump knockout drum, peroxide concentration analyzer and nytron concentration analyzer have been arranged in parallel, discharging opening place at vavuum pump knockout drum is also connected in series with the 3rd air intake valve and compressor successively, at the discharging opening place of vavuum pump knockout drum, be also connected in parallel to the 3rd air bleeding valve and defective air-flow return pipe line, one end of defective air-flow return pipe line is connected in parallel on air inlet pipeline, compressor output end is connected with the input of heat exchanger, the output of heat exchanger is connected with the input of liquefied gas knockout drum, on liquefied gas knockout drum, be provided with draining valve, liquefied gas knockout drum is provided with the input connecting pipe with liquefied gas delivery pump, and liquefied gas carries delivery side of pump to be connected with liquefied gas storage tank.
6. the system of gas superzapping contracting oil gas is loaded in entrucking as claimed in claim 5 onto ship, it is characterized in that, described oxygen concentration analyzer and nytron concentration analyzer are connected in parallel on the analysis transfer pipeline of the oil gas between vavuum pump knockout drum and the 3rd air intake valve, and described the 3rd air bleeding valve is also connected in parallel on to be analyzed on transfer pipeline.
7. gas superzapping contracting oil gas system is loaded in entrucking as claimed in claim 5 onto ship, it is characterized in that, in the upper end of described activated carbon adsorber A and activated carbon adsorber B, be respectively equipped with first row air valve and second row air valve, after first row air valve and second row air valve are connected in parallel by pipeline, by blast pipe, unnecessary its gas of lightweight after activated carbon adsorber absorption is entered to atmosphere.
8. entrucking shipment gas superzapping contracting oil gas system as claimed in claim 5, is characterized in that, is connected with vavuum pump back pressure pipeline and vacuum medium back flow pipeline between described vavuum pump knockout drum and the entrance of vavuum pump.
9. entrucking shipment gas superzapping contracting oil gas system as claimed in claim 5, is characterized in that, between described liquefied gas knockout drum and air inlet pipeline, by on-condensible gas return duct, is connected with pressure reducer.
10. the shipment of the entrucking as described in claim 5 or 7 gas is made compression oil gas system, it is characterized in that, described the first air intake valve, the second air intake valve, the 3rd air intake valve, the first outlet valve, the second outlet valve, the 3rd air bleeding valve, first row air valve and second row air valve are magnetic valve, and described magnetic valve, vavuum pump, compressor and liquefied gas delivery pump are all connected with Programmable Logic Controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410330906.XA CN104096449B (en) | 2014-07-11 | 2014-07-11 | Technology for compressing petroleum gas in gas production manner for vehicle loading and ship loading |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410330906.XA CN104096449B (en) | 2014-07-11 | 2014-07-11 | Technology for compressing petroleum gas in gas production manner for vehicle loading and ship loading |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107961642A (en) * | 2017-12-01 | 2018-04-27 | 河北东厚环保科技有限公司 | Gas recovery system for oil based on high throughput nanometer adsorbent bed |
| CN107970747A (en) * | 2017-12-01 | 2018-05-01 | 河北东厚环保科技有限公司 | Can remote monitoring oil gas automation recovery system |
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| CN203916410U (en) * | 2014-07-11 | 2014-11-05 | 海湾环境科技（北京）股份有限公司 | A kind of entrucking shipment gas superzapping contracting oil gas system |
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