CN103551009B - Organic recovery device in a kind of flare line - Google Patents
Organic recovery device in a kind of flare line Download PDFInfo
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- CN103551009B CN103551009B CN201310589941.9A CN201310589941A CN103551009B CN 103551009 B CN103551009 B CN 103551009B CN 201310589941 A CN201310589941 A CN 201310589941A CN 103551009 B CN103551009 B CN 103551009B
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Abstract
The invention discloses organic recovery device in a kind of flare line, it comprises the first cooler be connected with torch gas export pipeline front end, the liquid-phase outlet of the first cooler is connected by the first pipeline with the entrance of separating tank, the outlet at bottom of separating tank is connected with the entrance of stripper by the second pipeline that pump is housed, the gaseous phase outlet opened at separating tank top is connected with torch gas export pipeline end, open and be connected with the second cooler inlet by the 3rd pipeline at the gaseous phase outlet of stripper overhead, liquid-phase outlet at the bottom of stripper tower is connected with the import of the 3rd cooler by the 4th pipeline, the outlet of the 3rd cooler is connected with discharge of wastewater pipeline, the outlet of the second cooler is connected with the import of oil water separator by the 5th pipeline, the oil phase outlet of oil water separator is connected with oil phase discharge pipe line and liquid phase discharge pipe line respectively with liquid-phase outlet.This device flare line is adopted only to burn CO, H of some low combustions heat
2, can not to producing a large amount of heat radiations around.
Description
Technical field
The present invention relates to one and urge gas phase organic matter purification and recover device in flare line, especially relate to gas phase organic substance condensation purification and recover device again in flare line.
Background technology
Along with today of petro chemical industry develop rapidly, the petrochemical equipments such as oil refining, chemical industry, plastics present that production scale expands, the feature of joint construction coproduction and public work centralizedly supply more.Due to scale and the mutual association of these devices, therefore device will give off relatively large torch gas or discharge gas.In order to ensure system stability and the safety of process units, the row's of making bleed air operation does not affect the normal production run of device self and periphery as far as possible, protection periphery ecological environment, usually emission gases is delivered in torch through the backward airborne release of burning process.But because technique discharge gas composition various in present petrochemical plant becomes increasingly complex, and there will be combustion product residue when the technique discharge gas of some high heat that burn, serious air pollution can be caused to the environment of periphery, also can cause certain heat radiation to periphery simultaneously.
Chinese patent CN200810114409.0 discloses a kind of organic waste gas treatment method of non-secondary pollution, comprise adsorption and desorption process, recycling process, it is characterized in that including in recycling process organic liquid and layering water circulation removal process that gas circulation and stress process and desorption gaseous mixture condensation obtain.The method adopts adsorbent to adsorb, and then carries out desorption process.The organic substance discharged in each device in organic chemical industry garden is of a great variety, and organic substance there occurs in mixed process reaction define new organic substance.Therefore the adsorbent selected in adsorption and desorption process and desorbing agent kind more, and often kind of organic substance is not all have adsorption capacity and the extremely strong material of desorption ability.Also have some organic substance to there occurs chemical reaction in flow process in flare line, adsorbent can cannot adsorb completely.So be easy to occur that steam COD exceeds standard, cause the corrosion of equipment.Simultaneously the method is multi-stage absorption and desorption, and rectifying, therefore operates more difficult, and if very easily there is production accident when the quantity of sorbent that unstable discharge capacity exceedes in this device appears in process units.
Chinese patent CN201110064514.X discloses a kind of novel waste gas purification apparatus, comprise filter and adsorbent equipment, filter is provided with organic exhaust gas import, filter outlet place is connected with adsorbent equipment by absorption pipeline, adsorbent equipment comprises adsorbent bed I and adsorbent bed II, adsorbent bed I is connected with condenser one end by desorption pipeline with the front end of adsorbent bed II, adsorbent bed I is connected with absorption blower fan by absorption pipeline with the end of adsorbent bed II, the rear end of adsorbent bed I and adsorbent bed II is by being connected with steam inlet pipeline after desorption pipeline communication, steam inlet pipeline place is provided with drying air fan, the condenser other end is connected with separator, separator is provided with organic outlet and water out.Water is got rid of after adopting the water got rid of to rely on quantizer to be separated by the method, and the COD in water-oil separating water out exceeds standard, and needs to carry out secondary reprocessing, causes very large impact like this to environmental protection.And the organic matter existed after multiple adsorb process in water has serious stench taste.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, unburnt organic matter causes environmental pollution to provide one to prevent torch periphery from occurring, also can improve organic recovery device in a kind of flare line of the utilization rate of the firing-difficult matter matter in flare line simultaneously.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Organic recovery device in a kind of flare line of the present invention, it comprises the first cooler be connected with torch gas export pipeline front end, the described liquid-phase outlet of the first cooler is connected by the first pipeline with the entrance of separating tank, the outlet at bottom of described separating tank is connected with the entrance of stripper by the second pipeline that pump is housed, the gaseous phase outlet opened at separating tank top is connected with torch gas export pipeline end, open and be connected with the second cooler inlet by the 3rd pipeline at the gaseous phase outlet of stripper overhead, the described liquid-phase outlet at the bottom of stripper tower is connected with the import of the 3rd cooler by the 4th pipeline, the outlet of the 3rd described cooler is connected with discharge of wastewater pipeline, the outlet of the second described cooler is connected with the import of oil water separator by the 5th pipeline, the oil phase outlet of described oil water separator is connected with oil phase discharge pipe line and liquid phase discharge pipe line respectively with liquid-phase outlet.
The invention has the beneficial effects as follows:
1. flare line gas is by this device recovery organic substance wherein, the mixture of the mixture cooled down from the first condenser mainly containing methyl alcohol, acetic acid, formaldehyde, benzene, metaformaldehyde, dioxolane, hutanal, isobutylaldehyde, octenal, n-butanol, isobutanol and octanol.And be mainly carbon monoxide, hydrogen and a small amount of propane and propylene gas from the gas that flare line end is got rid of.Due to the existence of part alcohol, acid in flare line, outside reacting, the organic matter of these complexity can be polymerized to the polymer of high-carbon at a certain temperature, and not easy-to-use adsorbent adsorbs.First the organic matter of the organic substance of these high-carbon and easy condensation is carried out condensation by benzene device first cooler 1, be separated with gaseous material.Prevent high-carbon organic matter from directly burning at flare line mouth and occur black smoke.CO, H of some low combustions heat and flare line only burns
2, can not to producing a large amount of heat radiations around.
2. the stripper in this device has descended next organic water and thing to carry out air lift purifying to condensation, organic substance in the organic hydrates that cooling is reclaimed is separated with moisture, water content wherein in organic substance is reduced under 0.1%, and the COD content in the water yield of discharging at the bottom of stripping tower is reduced to 85PPM once, making the condensed water in flare line without the need to processing, can directly discharge.
Accompanying drawing explanation
Accompanying drawing is the flow chart of organic substance retracting device in a kind of flare line of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Organic recovery device in a kind of flare line of the present invention as shown in drawings, it comprises the first cooler 1 be connected with torch gas export pipeline front end 8-1, the described liquid-phase outlet of the first cooler 1 is connected by the first pipeline with the entrance of separating tank 2, the outlet at bottom of described separating tank 2 is connected with the entrance of stripper 3 by the second pipeline that pump is housed, the gaseous phase outlet opened at separating tank top is connected with torch gas export pipeline end 8-2, open and be connected with the second cooler 4 import by the 3rd pipeline at the gaseous phase outlet of stripper overhead, the described liquid-phase outlet at the bottom of stripper tower is connected with the import of the 3rd cooler 6 by the 4th pipeline, the outlet of the 3rd described cooler is connected with discharge of wastewater pipeline 7, the outlet of the second described cooler is connected with the import of oil water separator by the 4th pipeline, the oil phase outlet of described oil water separator 5 is connected with oil phase discharge pipe line and liquid phase discharge pipe line respectively with liquid-phase outlet.
The operating process of this device is as follows: (1) gaseous material sent in the first cooler 1 pair of torch gas carries out condensation by the torch gas of torch gas export pipeline front end 8-1; (2) cooled torch gas is sent into separating tank 2, cooled torch gas carries out gas-liquid separation in separating tank, the material of gas phase enters torch gas export pipeline end 8-2, liquid under condensation out enters stripper 3 from the bottom of separating tank 2, enters in the second cooler 4 after the organic phase gasification substance under the effect of steam in torch condensate liquid; Enter from the cooled organic phase of the second cooler 4 separating organic substances carrying out organic substance and solidifying water oil water separator 5 to recycle.(3) COD in the water after being carried by stripper steam is reduced, after subcooler 6 cools, carry out discharge of wastewater.
Claims (1)
1. organic recovery device in a flare line, it is characterized in that: it comprises the first cooler be connected with torch gas export pipeline front end, the described liquid-phase outlet of the first cooler is connected by the first pipeline with the entrance of separating tank, the outlet at bottom of described separating tank is connected with the entrance of stripper by the second pipeline that pump is housed, the gaseous phase outlet opened at separating tank top is connected with torch gas export pipeline end, open and be connected with the second cooler inlet by the 3rd pipeline at the gaseous phase outlet of stripper overhead, the described liquid-phase outlet at the bottom of stripper tower is connected with the import of the 3rd cooler by the 4th pipeline, the outlet of the 3rd described cooler is connected with discharge of wastewater pipeline, the outlet of the second described cooler is connected with the import of oil water separator by the 5th pipeline, the oil phase outlet of described oil water separator is connected with oil phase discharge pipe line and liquid phase discharge pipe line respectively with liquid-phase outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589941.9A CN103551009B (en) | 2013-11-20 | 2013-11-20 | Organic recovery device in a kind of flare line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589941.9A CN103551009B (en) | 2013-11-20 | 2013-11-20 | Organic recovery device in a kind of flare line |
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| Publication Number | Publication Date |
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| CN103551009A CN103551009A (en) | 2014-02-05 |
| CN103551009B true CN103551009B (en) | 2015-10-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107158849A (en) * | 2016-03-08 | 2017-09-15 | 中石化洛阳工程有限公司 | A kind of torch gas water washing device |
| CN106588541B (en) * | 2016-12-09 | 2019-04-16 | 大连福佳·大化石油化工有限公司 | A kind of extracting torch tank lime set recycle device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301251A (en) * | 1998-05-20 | 2001-06-27 | Bp阿莫科公司 | Recovery of organics from process flare header |
| CN202304247U (en) * | 2012-02-01 | 2012-07-04 | 淄博鲁华同方化工有限公司 | Device for recovering flare gas generated in C5 separation process |
| CN103058295A (en) * | 2012-12-19 | 2013-04-24 | 中国五环工程有限公司 | Technology of low pressure steam stripping shift conversion technical condensed fluid |
| CN103101988A (en) * | 2013-01-29 | 2013-05-15 | 中国五环工程有限公司 | Method for stripping gas washing water |
-
2013
- 2013-11-20 CN CN201310589941.9A patent/CN103551009B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301251A (en) * | 1998-05-20 | 2001-06-27 | Bp阿莫科公司 | Recovery of organics from process flare header |
| CN202304247U (en) * | 2012-02-01 | 2012-07-04 | 淄博鲁华同方化工有限公司 | Device for recovering flare gas generated in C5 separation process |
| CN103058295A (en) * | 2012-12-19 | 2013-04-24 | 中国五环工程有限公司 | Technology of low pressure steam stripping shift conversion technical condensed fluid |
| CN103101988A (en) * | 2013-01-29 | 2013-05-15 | 中国五环工程有限公司 | Method for stripping gas washing water |
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Address after: 300450 No. ten, No. 3369, Lingang Industrial Zone, Tanggu District, Bohai, Tianjin Patentee after: Bo Huayongli chemical inc, Tianjin Address before: 300450 No. ten, No. 3369, Lingang Industrial Zone, Tanggu District, Bohai, Tianjin Patentee before: Tianjin Alkali Plant, Bohai Chemical Co., Ltd, Tianjin |