CN1327023A - Solvent absorption process and equipment for recovery oil and gas - Google Patents
Solvent absorption process and equipment for recovery oil and gas Download PDFInfo
- Publication number
- CN1327023A CN1327023A CN 00118205 CN00118205A CN1327023A CN 1327023 A CN1327023 A CN 1327023A CN 00118205 CN00118205 CN 00118205 CN 00118205 A CN00118205 A CN 00118205A CN 1327023 A CN1327023 A CN 1327023A
- Authority
- CN
- China
- Prior art keywords
- equipment
- pipe
- tower
- gas
- oil
- 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.)
- Pending
Links
Images
Abstract
The present invention relates to one kind of solvent absorption process and equipment for recovering oily gas or other gas. Its oily gas absorbing and desorbing are performed in one identical tower and its accompanied desorbing unit, cooling unit and other equipment results in high oily gas recovering rate, lower investment in equipment, raised operation stability and saving in covered area.
Description
The present invention relates to a kind of solvent (absorption agent) absorption process that is applicable to and reclaim the technical process and the equipment of oil gas (or other gas).
In the storage and transport process of light-end products (as gasoline, kerosene, benzene, ethanol etc.), want some oil gas volatilization to enter atmosphere inevitably, thereby produce the pollution of environment, cause waste, and the influence safety in production.In recent decades, people have invented a lot of technology to reclaim this part oil gas, and solvent absorption is use always in these technology a kind of.
Figure the-1st, the typical process synoptic diagram of this technology.
This flow process is made up of the absorption desorption system of forebody and latter half of enrichment gas recovery system for oil two portions.
Light-end products are packed into by pipeline (9) in the tank car (1), and the oil gas that evaporates is incorporated into absorption tower (2) by pipeline.Filler is equipped with in (2) in the absorption tower, and oil-containing gases (mixed gas of air and oil gas) contacts with absorption agent at filling surface, and oil gas is absorbed, and the air of removing oil gas enters atmosphere from cat head.The rich absorbent that is absorbed with oil gas by base level control by separating cucurbitula (3) into negative-pressure operation from compressing into, oil gas is desorbed at this, enter the enrichment gas recovery system for oil, absorption agent after the desorb is extracted out at the bottom of jar by poor absorption agent pump (4), return top, absorption tower (2) again, so oil gas absorption and desorption process is finished in circulation.In the enrichment oil gas recovery process of latter half, the enrichment oil gas that cucurbitula (3) top is separated in vacuum pump (5) suction makes it produce negative pressure, and will send into condenser (6) after the enrichment oil gas lift pressure, condensed enrichment oil gas enters catch pot (7), uncooled oil gas turns back to absorption tower (2) and absorbs, and the oil product that condenses is sent back in the storing and transporting system.The also useful light-end products of enrichment oil gas recovery process of latter half are made the flow process that absorption agent directly absorbs enrichment oil gas.
The present invention proposes a kind of new solvent absorption absorption, the flow process and the equipment of desorb oil gas.
Figure the-2nd, schematic flow sheet of the present invention.
The present invention finishes the process of absorption and desorption oil gas in absorbing (12) equipment of desorption tower.Absorbing desorption tower (12) epimere is absorber portion, at this, absorption agent absorbs the oil gas in the oil-containing gases get off, air enters atmosphere from cat head, the rich absorbent that has absorbed oil gas leans on from compressing into into the hypomere stripping stage by one " U " type liquid sealing pipe, the rich absorbent that enters hypomere is at first gone up desorb at desorption device (18), the enrichment oil gas that desorbs enters enrichment gas recovery system for oil (this system flow is identical with existing procedure), through the poor absorption agent after desorption device (18) desorb, return cat head again with poor absorption agent pump (4), so move in circles.
It is simple and direct that the present invention has flow process, oil gas recovery rate height, reduced investment, the characteristics that floor space is little, serviceability is high.In flow process of the present invention, absorbing the desorb part does not need liquid level control, has saved the special cucurbitula of separating, thereby has saved equipment, the investment and the floor space of pipe arrangement and automatic instrument(s) system; Because absorbing desorption tower (12) absorber portion is atmospheric operation, stripping stage is vacuum operating (about 6.6Kpa), and pressure reduction is not more than 100Kpa up and down, and suitable height liquid seal can guarantee to absorb the quiet run of desorption tower (12) effectively; In addition, owing to set up desorption device (18) at stripping stage, the oil gas that is absorbed in the rich absorbent can be desorbed fully, make the poor absorption agent oil concentration after the desorb reduce, its result has improved the assimilation effect of absorption portion, and exhausted air oil-containing tolerance is reduced, and oil gas recovery rate improves.
Figure the-3rd, specific embodiments of the invention.
Absorbing desorption tower (12) is made of two sections, epimere absorber portion (14) is separated by the end socket (13) at tower middle part with hypomere stripping stage (15), and by the connection of " U " type pipe, the oil gas that oil-containing gases and enrichment gas recovery system for oil return enters the mouth (24) and returns oil gas inlet (25) through oil gas respectively and enters the absorber portion (14) that absorbs desorption tower (12), carrying out atmospheric gas liquid through the poor absorption agent that sparger (21) sprays with enter the mouth from poor absorption agent (23) on filler (22) contacts, through the air that absorbs, discharge from cat head through exit air (10).Absorbed the rich absorbent of oil gas, compile the back earlier after the down pipe (16) of " U " type pipe by end socket (13), ascension pipe (17), water cooler (20), behind the resistance element (19), the spray of turning back is gone into desorption device (18), the down pipe (16) and the ascension pipe (17) of " U " type pipe can be pipes, also can enclose " U " type passage by steel plate and Ta Bi, down pipe (16) and ascension pipe (17) can place in the tower, also can place outside the tower, vaporize because of step-down for reducing the interior rich absorbent of ascension pipe (17), the fluctuation that ascension pipe (17) the height h that causes hybrid density to descend and produce increases or operates can be set up suitable resistance element (19) at the top or the exit end of ascension pipe (17) in case of necessity; For reducing poor absorption agent temperature, improve assimilation effect, can on down pipe (16) or ascension pipe (17), set up water cooler (20) in case of necessity, this moment down pipe (16), ascension pipe (17) and water cooler (20) need be arranged on outside the tower.In the pressure reduction of having considered the tower two sections, the upper and lower line pipe of " U " type pipe in the density difference of rich absorbent and the pipe after resistance to flow and the velocity head, height h at the bottom of rich absorbent liquid level (20) distance " U " type pipe in the down pipe (16) should have certain affluence, in order to avoid the destruction fluid-tight influences stable operation.The filler of bigger serface is housed in the desorption device (18),, thereby can fully reduces the interior oil concentration of absorption agent, improve assimilation effect for rich absorbent provides the place of abundant desorb.The enrichment oil gas that desorbs enters the enrichment gas recovery system for oil through oil gas vent (26).Poor absorption agent after the desorb exports (27) by poor absorption agent and gets to cat head recycle after poor absorption agent pump (4) boosts.During operation, even without the control of any liquid automatic control system, because it is basicly stable constant to absorb the liquid holdup of desorption system, therefore, stripping stage liquid level (28) kept stable.
Claims (8)
1. one kind is applicable to that solvent absorption reclaims the technical process and the equipment of oil gas (or other gas), this flow process is made of front and back two portions system, the anterior desorption system that absorbs absorbs the oil gas in the oil-containing gases get off with absorption agent, and then it is desorbed from absorption agent, enrichment gas recovery system for oil in rear portion becomes liquids recovery with the enrichment oil gas that the desorbs method by condensation or absorption and returns, it is characterized in that: the absorption and desorption process is at same tower---and absorb in the desorption tower (12) and finish, absorber portion (14) and stripping stage (15) are separated up and down by end socket (13), rich absorbent is by " U " type guard system, certainly flow to stripping stage (15) by absorber portion (14), through desorption device (18) oil gas is wherein desorbed, enrichment oil gas is explained suction section (a 15) top by oneself and is entered rear portion enrichment gas recovery system for oil, poor absorption agent from the bottom of the tower after poor vapor pump (4) is extracted out, return and absorb desorption tower (12) top and recycle.
2. flow process according to claim 1 and equipment is characterized in that: the end socket (13) that separates two sections can compile the end socket of the structure formation of rich absorbent for ellipsoidal head or other.
3. flow process according to claim 1 and equipment is characterized in that: " U " type guard system of hypomere can be by down pipe (16) in the connection, and ascension pipe (17) and resistance element (19) and water cooler (20) constitute alone or in combination.
4. flow process according to claim 3 and equipment, it is characterized in that: " U " type guard system is made of down pipe (16) and ascension pipe (17) at least, down pipe (16) and ascension pipe (17) can be round steel pipes, also can be by enclosing " U " type passage between steel plate and the tower wall.
5. flow process according to claim 3 and equipment is characterized in that: if resistance element (19) is set, resistance element (19) is installed on the top or outlet of ascension pipe (17).
6. flow process according to claim 3 and equipment is characterized in that: " U " type guard system can be arranged on outside Ta Nei or the tower, and when on " U " type guard system water cooler (20) being set, this system is preferably disposed on outside the tower.
7. according to claim 3 and the described equipment of claim 6, it is characterized in that: water cooler (20) can adopt shell and tube cooler, and wet air cooler or double-pipe cooler also can adopt the structure formation that directly adds the water coolant pipe box outside line pipe up and down.
8. equipment according to claim 1 is characterized in that desorption device (18) is a straight-through up and down packing section, and filler preferably adopts structured packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00118205 CN1327023A (en) | 2000-06-01 | 2000-06-01 | Solvent absorption process and equipment for recovery oil and gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00118205 CN1327023A (en) | 2000-06-01 | 2000-06-01 | Solvent absorption process and equipment for recovery oil and gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1327023A true CN1327023A (en) | 2001-12-19 |
Family
ID=4587114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00118205 Pending CN1327023A (en) | 2000-06-01 | 2000-06-01 | Solvent absorption process and equipment for recovery oil and gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1327023A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369653C (en) * | 2005-12-13 | 2008-02-20 | 中国石油化工股份有限公司 | Oil gas absorptive reclaiming method and apparatus |
| CN105435598A (en) * | 2015-12-11 | 2016-03-30 | 凯天环保科技股份有限公司 | Purifying system for volatile organic exhaust gas |
-
2000
- 2000-06-01 CN CN 00118205 patent/CN1327023A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369653C (en) * | 2005-12-13 | 2008-02-20 | 中国石油化工股份有限公司 | Oil gas absorptive reclaiming method and apparatus |
| CN105435598A (en) * | 2015-12-11 | 2016-03-30 | 凯天环保科技股份有限公司 | Purifying system for volatile organic exhaust gas |
| CN105435598B (en) * | 2015-12-11 | 2018-02-23 | 凯天环保科技股份有限公司 | Purification of volatile organic waste gas system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7306654B2 (en) | Method and apparatus for recovering water from atmospheric air | |
| CN103566619A (en) | Method for recovering multi-component organic gas mixture | |
| CN1994858A (en) | Oil gas recovery method and device of fuel station | |
| CN204107268U (en) | Device for recovering oil and gas | |
| CN200988765Y (en) | Condensing oil-gas recovery device | |
| CN1806894A (en) | Oil gas absorptive reclaiming method and apparatus | |
| CN109045739A (en) | Integral type gas recovery system for oil and recovery process | |
| JPS5919722B2 (en) | Steam recovery method and device | |
| CN106621711B (en) | A kind of processing method of the benzene gas containing high concentration | |
| CN1935319B (en) | Oil gas adsorption recovering method and apparatus utilizing heating desorption | |
| CN1334313A (en) | Adsorption-absorption process for recovering oil gas | |
| US5584911A (en) | Vapor recovery system with cyclonic separator | |
| CN207533016U (en) | A kind of dichloromethane tail gas resource utilization device | |
| CN2597058Y (en) | Carbon adsorption cold washing device for recovering oil and gas | |
| CN201735206U (en) | Cooling and absorbing oil gas recovery device | |
| CN1327023A (en) | Solvent absorption process and equipment for recovery oil and gas | |
| CN205925436U (en) | Condensation catalytic oxidation handles integrated system who contains benzene tail gas | |
| CN102911704B (en) | Method for comprehensive oil gas recovery | |
| CN109663468A (en) | Oil-gas recovery method | |
| CN208503941U (en) | A kind of device for recovering oil and gas for oil gas storage tank | |
| CN101462688A (en) | Variable frequency oil gas recycling method for petrol station photoelectric complementary absorption condensation and adsorption | |
| CN101462689A (en) | Variable frequency oil gas recycling method for petrol station absorption condensation and adsorption | |
| CN1935318A (en) | Ultrasonic disturbance-increasing oil gas absorption recovering method and apparatus | |
| CN106669215A (en) | Absorption and adsorption treatment method of high-concentration benzene gas | |
| EP0990619A1 (en) | Method for recovering gasoline vapors in filling stations and apparatus for performing the method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |