CN102068874B - Oil gas recovery method - Google Patents
Oil gas recovery method Download PDFInfo
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- CN102068874B CN102068874B CN 200910220023 CN200910220023A CN102068874B CN 102068874 B CN102068874 B CN 102068874B CN 200910220023 CN200910220023 CN 200910220023 CN 200910220023 A CN200910220023 A CN 200910220023A CN 102068874 B CN102068874 B CN 102068874B
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Abstract
The invention discloses an oil gas recovery method. In the method, oil gas in waste gas is recovered and processed by an absorption method; an absorbing agent is oil slick which is recycled from an oil separation tank of a sewage treatment plant; and the oil slick from which the oil gas is absorbed is further processed by the conventional method. In the oil gas recovery method, the oil slick of the oil separation tank is the oil gas absorbing agent; an oil slick absorbing agent has extremely low cost while an good absorbing effect is guaranteed, the oil slick after the oil gas is absorbed is processed by the conventional oil slick processing method; an independent regeneration process is not required; an oil gas absorption process has a simple process (an absorbing agent regeneration process is not required); and both equipment investment and operation cost can be obviously reduced. The method is suitable for treatment of the waste gas with higher oil gas concentration.
Description
Technical field
The present invention relates to a kind of oil-gas recovery method, particularly the oil-gas recovery method of the oily waste gas of acid water storage tank discharging gas, oil product storage tank discharging gas, light hydrocarbons substance oxidation removal of mercaptans tail gas etc.
Background technology
A certain amount of waste gas of general outside discharging under normal operating condition such as various oil product storage tanks, sump oil storage tank, acid water storage tank, also have some process units such as light hydrocarbons substance oxidation sweetening unit also to discharge more waste gas, the oil gas that contains higher concentration in these waste gas, as effectively not recycling, cause on the one hand a large amount of wastes to resource, cause on the other hand serious environmental pollution, also have simultaneously certain potential safety hazard.
The processing method of oily waste gas is commonly used absorption process, absorption method, condensation method, embrane method Investigation of Petroleum Vapor Recovery Technology etc., as described in " China and foreign countries' energy " the 5th phase in 2006 " application study of Investigation of Petroleum Vapor Recovery Technology " one literary composition, it is generally acknowledged that normal pressure and temperature absorption process recovery technology should be as present preferred option such as Huang Weiqiu etc.Also can be the combination of some techniques, in the disclosed oil-gas recovery method of CN03135766.0, at first adopt the supercharging method of reducing phlegm and internal heat to recycle a large amount of oil gas after, adopt again pressure absorption process, pressure absorption method, emulsification absorption method further to reclaim.
The demercaptaning for gasoline by catalyst cracking exhaust gas treating method of " oil refining design " the 28th volume the 6th phase the 31st～32 page of introduction, adopt packed tower to absorb, the method adopts conventional absorption techniques, absorbent adopts diesel oil distillate, diesel oil distillate behind the absorption oil gas needs further to process, the method is limited by diesel oil source and whereabouts, if the waste gas generating source is far away apart from transmission or the receiving system of diesel oil, corresponding operating cost is higher.CN200510123016.2 discloses a kind of oil-gas recovery method, the oil gas removal process can be divided into three parts: absorption tower absorption and separation → solution cucurbitula desorb concentrates → recovery tower absorption recovery, equipment comprises closed charging oil filling riser, oil storage and transportation equipment, absorption tower, solvent pump, the sleeping tank of desorb, vavuum pump, recovery tower, rich petrol pump and poor petrol pump, be provided with simultaneously the sleeping tank of desorb, it is 2～4 layers of dividing plate that its inside is provided with, this dividing plate all has constant slope, and direction is different, and the gradient is 0.01～0.02.Can be welded with the low weir plate in some roads on this dividing plate, at the high-end baffle plate that is provided with of dividing plate, permeability cell can be selected to arrange in the centre.Be filled with the demist filler in the sleeping tank outlet of desorb, the bottom is provided with poor absorbent outlet.Oil gas absorbs at normal temperatures and pressures recovery and is intermittent operation, and absorbent adopts special-purpose organic solvent or product oil.Comprise absorption portion and absorbent regeneration part in this process, the cost of absorbent is higher, and technological process is longer.
Although above-mentioned prior art has certain technique effect in some aspects, overall target needs further to improve, and particularly economy needs further to improve.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of oil-gas recovery method, the present invention adopts absorption process to reclaim oil gas, and the absorbent cost is low, and technique is simple, is applicable to the processing procedure of various oily waste gas.
Oil-gas recovery method of the present invention comprises: adopt the oil gas in the absorption process recycling waste gas, wherein absorbent is the oil slick that the sewage-farm oil interceptor reclaims, and the oil slick that has absorbed oil gas is further processed.
In the oil-gas recovery method of the present invention, absorption process adopts conventional gas-liquid contanct equipment, and such as packed tower, bubble tower etc., waste gas and absorbent can and flow by gas-liquid contanct equipment, and also reversible flow passes through gas-liquid contanct equipment.The absorption operation temperature is generally 10～45 ℃, and liquid gas volume ratio is generally 20～200L/m
3, gas-liquid contanct equipment is by 1～10 theoretical plate design, and oil gas recovery rate can reach more than 85%.Reclaim rear emission by the inventive method oil gas and generally can not reach environmental emission standard, can adopt conventional method further to purify rear discharging, further process such as employing absorption method, oxidizing process, condensation method etc.It is close that emission forms general composition with sewage-farm oil interceptor, floation tank discharging waste gas, can merge processing, simplification enterprise exhaust-gas treatment flow process.
In the oil-gas recovery method of the present invention, absorbent is from the oil slick of sewage-farm oil interceptor, such as the oil interceptor oil slick in petroleum refining enterprise or petrochemical enterprise sewage-farm, the key component of oil interceptor oil slick is hydrocarbons, and oil gas is had good absorption.Oil slick can through processing such as simple filtrations, then be used for absorbing oil gas.Because the sewage-farm water is comparatively complicated, also different from the oil slick composition that oil interceptor obtains, but oil gas is all had good absorption.Oil slick behind the absorption oil gas can further be processed by the processing method of existing oil interceptor oil slick, and the processing procedure to oil slick behind the absorption oil gas does not exert an influence substantially.The subsequent treatment of oil slick generally comprises the processes such as dehydration, distillation, in the last handling process of oil slick, can separate the oil gas that wherein absorbs.
In the oil-gas recovery method of the present invention, manageable waste gas kind is unrestricted, optimum range is wide, the waste gas that hydrocarbon content is higher all can adopt the inventive method to process, and contains ammonia Water Tank discharging gas, slop tank discharging gas, gas-oil tank discharging gas, raw gasoline tank discharging gas, alkaline residue tank discharging gas, oil product storage tank discharging gas and light oil entrucking process discharging gas etc. such as gasoline and liquid hydrocarbon oxidation sweetening tail gas, sulfur-bearing.
Oil-gas recovery method of the present invention is take the oil interceptor oil slick as the oil gas absorbing agent, has good assimilation effect, the oil slick absorbent does not produce any cost substantially, oil slick behind the absorption oil gas gets final product by existing oil slick disposal methods, do not need independent regenerative process, oil gas absorbing technical process simple (only needing an absorption process), equipment investment and operating cost all can obviously reduce.
Description of drawings
Fig. 1 is a kind of concrete technology schematic flow sheet of oil-gas recovery method of the present invention.
Wherein: 1-sewage-farm oil interceptor, 2-oil interceptor oil slick, 3-oily waste gas, the 4-absorption tower, float oil treatment device behind the 5-absorption oil gas, 6-oil interceptor waste gas discharges gas behind the 7-waste gas absorption, the 8-emission-control equipment.
The specific embodiment
Further specify the method technological process below in conjunction with accompanying drawing.
As shown in Figure 1, oily waste gas 3 contacts absorption with oil interceptor oil slick 2 in absorption tower 4, the oil interceptor oil slick that has absorbed oil gas enters float oil treatment device 5 and further processes, and discharging gas 7 and oil interceptor waste gas 6 are processed in emission-control equipment 8 jointly behind the waste gas absorption.
Further specify the technology of the present invention content and effect below by embodiment.
Embodiment 1
Certain gas-oil basin district and sump oil tank field discharging waste gas, about 40 ℃ of temperature, total gas concentration is 9 * 10
4～40 * 10
4Mg/m
3, sulfide concentration is 1000mg/m
3About.Adopt first sodium hydroxide solution absorbing and removing sulfide, sodium hydroxide solution absorbs the after cure substrate concentration and is lower than 10mg/m
3, then adopt sewage-farm oil interceptor oil slick to absorb processing.
Absorption treating device adopts packed tower, filler is the stainless steel Pall ring filler of Φ 25mm * 25mm * 2mm, and waste gas enters packed tower from the packing layer bottom, and oil slick enters packed tower from packing layer top, gas-liquid is counter current contacting in packing layer, and Purge gas discharges further processing from cat head; The oil slick that absorbs oil gas discharges further processing at the bottom of tower.
The packed tower operating condition is: liquid-gas ratio is 50L/m
3, the volume space velocity of waste gas is 800h
-1, after stable operation in 12 hours, oil gas recovery rate is about 82%～86% in the waste gas.
Embodiment 2
Certain gasoline oxidation removal of mercaptans tail gas and liquid hydrocarbon oxidation sweetening tail gas, about 40 ℃ of temperature, total hydrocarbon concentration is 30 * 10
4～80 * 10
4Mg/m
3
Adopt bubble tower, in the middle of bubble tower is interior a gas distributor is set and carries out the distribution of secondary gas-liquid contact, oil slick enters bubble tower from cat head, and the oil slick that absorbs oil gas is discharged at the bottom of tower.Oxidation sweetening tail gas enters bubble tower at the bottom of tower, discharge from cat head, and the volume space velocity of waste gas is 1000h
-1, liquid-gas ratio is 70L/m
3, after stable operation in 12 hours, oil gas recovery rate reaches 85%～90%.
Claims (9)
1. an oil-gas recovery method adopts the oil gas in the absorption process recycling waste gas, and it is characterized in that: absorbent is the oil slick that the sewage-farm oil interceptor reclaims, and the oil slick that has absorbed oil gas is further processed; The hydrocarbon-contained waste gas of emission and sewage-farm oil interceptor, floation tank discharging merged processing after oil gas reclaimed.
2. it is characterized in that in accordance with the method for claim 1: the gas-liquid contanct equipment that absorption process adopts is packed tower or bubble tower.
3. in accordance with the method for claim 2, it is characterized in that: waste gas and absorbent and stream are by gas-liquid contanct equipment, and perhaps adverse current is passed through gas-liquid contanct equipment.
4. in accordance with the method for claim 2, it is characterized in that: the absorption operation temperature is 10～45 ℃, and liquid gas volume ratio is 20～200L/m
3, gas-liquid contanct equipment is 1～10 theoretical plate.
5. it is characterized in that in accordance with the method for claim 1: waste gas processing method is absorption method, oxidizing process or condensation method.
6. it is characterized in that in accordance with the method for claim 1: absorbent is from the oil interceptor oil slick in petroleum refining enterprise or petrochemical enterprise sewage-farm.
7. it is characterized in that in accordance with the method for claim 1: the further processing method of oil slick behind the absorption oil gas comprises dehydration and distillation.
8. it is characterized in that in accordance with the method for claim 1: the oil slick that oil interceptor reclaims is through being used for absorbing oil gas after the filtration treatment.
9. it is characterized in that in accordance with the method for claim 1: the waste gas that contains oil gas is that gasoline and liquid hydrocarbon oxidation sweetening tail gas, sulfur-bearing contain ammonia Water Tank discharging gas, slop tank discharging gas, gas-oil tank discharging gas, raw gasoline tank discharging gas, alkaline residue tank discharging gas, oil product storage tank discharging gas or light oil entrucking process discharging gas.
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|---|---|---|---|
| CN 200910220023 CN102068874B (en) | 2009-11-19 | 2009-11-19 | Oil gas recovery method |
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|---|---|---|---|
| CN 200910220023 CN102068874B (en) | 2009-11-19 | 2009-11-19 | Oil gas recovery method |
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| CN102068874B true CN102068874B (en) | 2013-05-01 |
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| CN108069155A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of storage tank discharging gas emission reduction and recovery system |
| CN108148635B (en) * | 2018-01-26 | 2021-03-16 | 新奥科技发展有限公司 | Oil recovery system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240183A (en) * | 2007-02-09 | 2008-08-13 | 中国石油化工股份有限公司 | Oil gas reclaiming method and device |
| CN101342427A (en) * | 2007-07-09 | 2009-01-14 | 中国石油化工股份有限公司 | Oil gas recovery method |
| CN101402001A (en) * | 2008-11-12 | 2009-04-08 | 江苏惠利特环保设备有限公司 | Oil gas recycling and processing apparatus, condensation adsorption method thereof |
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2009
- 2009-11-19 CN CN 200910220023 patent/CN102068874B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240183A (en) * | 2007-02-09 | 2008-08-13 | 中国石油化工股份有限公司 | Oil gas reclaiming method and device |
| CN101342427A (en) * | 2007-07-09 | 2009-01-14 | 中国石油化工股份有限公司 | Oil gas recovery method |
| CN101402001A (en) * | 2008-11-12 | 2009-04-08 | 江苏惠利特环保设备有限公司 | Oil gas recycling and processing apparatus, condensation adsorption method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 彭光勤等.催化裂化汽油脱硫醇尾气系统的改造.《炼油设计》.1998,第28卷(第6期), * |
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