CN101177187A - Technique for recovering oil tank volatilization hydrocarbon steam - Google Patents
Technique for recovering oil tank volatilization hydrocarbon steam Download PDFInfo
- Publication number
- CN101177187A CN101177187A CN 200710188539 CN200710188539A CN101177187A CN 101177187 A CN101177187 A CN 101177187A CN 200710188539 CN200710188539 CN 200710188539 CN 200710188539 A CN200710188539 A CN 200710188539A CN 101177187 A CN101177187 A CN 101177187A
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure
- tank
- liquid
- jar
- 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
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a crude oil gathering and delivery technology system, in particular to a recovery technology of hydrocarbons vapor volatilized from oil tank in the crude oil gathering and delivery technology system, which is characterized in that the oil gas volatilized from a precipitation and dehydration tank (1) is delivered to an atmospheric pressure-stabilizing tank (3) to stabilize pressure and separate the extricated liquid; after pressure stabilization, the separated condensate liquid is delivered in a condensate tank (4); the gas in the atmospheric pressure-stabilizing tank (3) after SY frequency conversion (6) is compressed by a pumping compressor (9), and the pressure is up to 0.4MPa, then after pumping the gas is cooled by a cooler (10), and the temperature is down to 40 DEG C; the cooled gas is delivered to a gas-liquid separator (11) for separation; after separation, the gas is directly delivered to the light hydrocarbon recovery device; the liquid after separation and the separated liquid from the atmospheric pressure-stabilizing bank (3) are together delivered to the condensate tank (4), and pumped out by the liquid hydrocarbon pump (5). The invention has the advantages of low failure rate of technological process, safety and reliability, which can realize the recovery of oil gas volatilized from the crude oil storage tank.
Description
Technical field
The invention belongs to the crude oil transmission process system, particularly the recovery process of oil tank volatilization hydrocarbon steam in the crude oil transmission process system.
Background technology
In the crude oil transmission process system, the collection output oil is a kind of hydrocarbon mixture of complexity, comprises the less hydro carbons of mol wt in its component, as methane, ethane, propane and butane etc.The less light component boiling point of hydro carbons of these mol wts is very low, when accumulating ambient temperature, pressure change, just evaporates from crude oil, carries out certain C simultaneously
3～C
6The crude oil component causes the very big oil and gas loss of oil-gas gathering and transportation system.Especially for the crude oil of not taking crude oil stabilization technology, when turnover petrol storage tank and higher storage temperature, bigger from the oil gas volatilization gas loss of Tank's Breather Valve volatilization.
Adopt compressor that the hydrocarbon Volatile Gas in the deposition dehydrating jar is extracted out, be passed to the normal pressure buffer tank and carry out pressure stability extraction vaporizing oil-gas, undertaken by at suction port of compressor place normal pressure voltage stabilizing technologies such as mechanical type pressure regulating box, leather bag buffer tank being set, this technical method exists usually that operating condition is poor, fault rate height, problem that safety and reliability are low.
Summary of the invention
The object of the present invention is to provide a kind of recovery process of oil tank volatilization hydrocarbon steam,, make the technological process fault rate low, safe and reliable so that when realizing that oil gas to the crude oil storage tank volatilization reclaims.
The object of the present invention is achieved like this, design a kind of recovery process of oil tank volatilization hydrocarbon steam, it is characterized in that: the oil gas that evaporates in the deposition dehydrating jar 1 is passed in the normal pressure buffer tank 3, carry out pressure stability and separate free liquid, through after the voltage stabilizing, the lime set of separation enters into lime set jar 4; The gas of normal pressure buffer tank 3 is brought up to 0.4MPa to pressure through SY frequency conversion 6 by air extraction compressor 9, is cooled to 40 ℃ through the aftercooler 10 of bleeding then, enters gas-liquid separator 11 through the gas of over cooling and separates, and the gas after the separation directly removes light ends unit; Liquid phase after the separation enters lime set jar 4 with isolated lime set from normal pressure buffer tank 3, pumps through liquid hydrocarbon pump 5.
The operation pressure of described deposition dehydrating jar 1 is set in+10～50mm water column.
Described air extraction compressor 9 is screw compressors.
Described air extraction compressor 9 is piston compressors.
Described deposition dehydrating jar 1 is lower than+and during the 20mm water column, tonifying Qi control cock 7 is opened tonifying Qi in normal pressure buffer tank 3 automatically.
Described deposition dehydrating jar 1 pressure rises to+and during the 150mm water column, the mechanical type aie escape valve 2 beginning exhaust pressure reliefs of installing on the normal pressure buffer tank 3 of air extraction compressor 9 inlets, pressure are reduced to+SELF CL during the 100mm water column.
The aspirated volume designed capacity of described air extraction compressor 9 is 1.2～2 times of the maximum volatile quantity of deposition dehydrating jar 1 hydrocarbon steam.
Basic technology principle of the present invention is: adopt screw compressor or piston compressor that the hydrocarbon Volatile Gas in the deposition dehydrating jar 1 is extracted out, be passed to normal pressure buffer tank 3 and carry out pressure stability, separate free liquid dry gas is transported to downstream processing, generates electricity or acts as a fuel gas.This technology guarantees that all the time compressor can effectively extract the hydrocarbon Volatile Gas out, and guarantees that the inlet pressure of air extraction compressor remains at normal pressure voltage stabilizing state.Solve fundamentally that the common process technology is provided with at suction port of compressor place that normal pressure voltage stabilizing technology method operating conditions such as mechanical type pressure regulating box, leather bag buffer tank are poor, fault rate height, problem that safety and reliability are low.
Description of drawings
The present invention will be further described below in conjunction with the embodiment accompanying drawing.
Fig. 1 is a flow scheme of the present invention.
Among the figure: 1, deposition dehydrating jar; 2, blowdown valve; 3, normal pressure buffer tank; 4, lime set jar; 5, liquid hydrocarbon pump; 6, SY frequency conversion; 7, tonifying Qi control cock; 8, mechanical type voltage-controlled valve; 9, air extraction compressor; 10, the aftercooler of bleeding; 11, gas-liquid separator; 12, control cock.
The specific embodiment
As shown in Figure 1, the oil gas that evaporates in the deposition dehydrating jar 1 is passed to normal pressure buffer tank 3, carry out pressure stability and separate free liquid, through after the voltage stabilizing, the lime set of separating enters into lime set jar 4, and gas is brought up to 0.4MPa to pressure through SY frequency conversion 6 by air extraction compressor 9, is cooled to 40 ℃ through the aftercooler 10 of bleeding then, enter gas-liquid separator 11 through the gas of over cooling and separate, the gas that directly removes light ends unit, generates electricity or act as a fuel of the gas after the separation is defeated outward.Disconnector 11 liquid phases enter lime set jar 4 with isolated lime set from the normal pressure buffer tank under control cock 12 controls, transport outward or enter light ends unit through 5 entruckings of liquid hydrocarbon pump and process.
Because storage tank all is normal pressure, in the range of pressure of ± 300mm water column, work substantially.Operation pressure with deposition dehydrating jar 1 during the device real-world operation is set in+10～50mm water column.
The air extraction compressor 9 common aspirated volumes that design is selected for use are bigger, and its ability is about 1.2～2 times of the maximum volatile quantity of deposition dehydrating jar 1 hydrocarbon steam.Be sent to the SY frequency conversion 6 of compressor during real-world operation by the pressure signal with the minute-pressure pressure transformer, the rotating speed of SY frequency conversion 6 control air extraction compressors 9 adapts to the tolerance fluctuation of deposition dehydrating jar 1 Volatile Gas.
Within the working ability scope of air extraction compressor 9, substantially can guarantee that by SY frequency conversion 6 air extraction compressor 9 aspirates the Volatile Gas in Oil Tank amount effectively, but when tolerance is crossed when low, the negative pressure operating mode of bleeding can appear in deposition dehydrating jar 1, the safety that is unfavorable for very much deposition dehydrating jar 1, therefore the pressure detection of transmitter to tank pressure be reduced to+during the 20mm water column, the tonifying Qi control cock 7 that DCS controls is opened tonifying Qi in deposition dehydrating jar 1 automatically.
Rely on normal working hours SY frequency conversion 6 and the 7 automatic tonifying Qi of DCS tonifying Qi control cock can keep the smooth running that big jar is bled.In case but SY frequency conversion 6 or DCS system works are unusual, cause deformation accident for fear of deposition dehydrating jar 1 hypotony, also have additional the 8 tonifying Qi measures of mechanical type voltage-controlled valve.Usually be set in normal pressure buffer tank 3 internal pressures be reduced to-mechanical type gulp valve 8 opens in the normal pressure buffer tank 3 tonifying Qi automatically to keep deposition dehydrating jar 1 atmospheric pressure state during the negative pressure of 20mm water column.
Can bear ± pressure of 300mm water column for newly-built deposition dehydrating jar 1, for the sake of security, when deposition dehydrating jar 1 pressure rise to+during the 150mm water column, the mechanical type aie escape valve 2 beginning exhaust pressure reliefs of installing on the normal pressure buffer tank 3 of air extraction compressor 9 inlet, pressure are reduced to+SELF CL during the 100mm water column.
Technology method of the present invention is suitable for all kinds of oil-gas stationses field of oilfield transportation system, as the recovery to system's oil tank volatilization hydrocarbon steams such as supercharging point, metering block station, multi-purpose station, oil depots.Recovering effect is more remarkable when especially pressing crude oil directly to enter the normal pressure petrol storage tank for band.
Claims (6)
1. the recovery process of oil tank volatilization hydrocarbon steam, it is characterized in that: the oil gas that evaporates in the deposition dehydrating jar (1) is passed in the normal pressure buffer tank (3), carry out pressure stability and separate free liquid, through after the voltage stabilizing, the lime set of separation enters into lime set jar (4); The gas of normal pressure buffer tank (3) is brought up to 0.4MPa to pressure through S Y frequency conversion (6) by air extraction compressor (9), be cooled to 40 ℃ through the aftercooler of bleeding (10) then, enter gas-liquid separator (11) through the gas of over cooling and separate, the gas after the separation directly removes light ends unit; Liquid phase after the separation enters lime set jar (4) with isolated lime set from normal pressure buffer tank (3), pumps through liquid hydrocarbon pump (5).
2. the recovery process of oil tank volatilization hydrocarbon steam according to claim 1, it is characterized in that: the operation pressure of described deposition dehydrating jar (1) is set in+10～50mm water column.
3. the recovery process of oil tank volatilization hydrocarbon steam according to claim 1, it is characterized in that: described air extraction compressor (9) is screw compressor or piston compressor.。
4. the recovery process of oil tank volatilization hydrocarbon steam according to claim 1 is characterized in that: and described deposition dehydrating jar (1) is lower than+and during the 20mm water column, tonifying Qi control cock (7) is opened tonifying Qi in normal pressure buffer tank (3) automatically.
5. the recovery process of oil tank volatilization hydrocarbon steam according to claim 1, it is characterized in that: described deposition dehydrating jar (1) pressure rises to+during the 150mm water column, go up mechanical type aie escape valve (2) the beginning exhaust pressure relief of installing at the normal pressure buffer tank (3) of air extraction compressor (9) inlet, pressure is reduced to+SELF CL during the 100mm water column.
6. the recovery process of oil tank volatilization hydrocarbon steam according to claim 1 is characterized in that: the aspirated volume designed capacity of described air extraction compressor (9) is 1.2～2 times of the maximum volatile quantity of deposition dehydrating jar (1) hydrocarbon steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710188539 CN101177187A (en) | 2007-12-10 | 2007-12-10 | Technique for recovering oil tank volatilization hydrocarbon steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710188539 CN101177187A (en) | 2007-12-10 | 2007-12-10 | Technique for recovering oil tank volatilization hydrocarbon steam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101177187A true CN101177187A (en) | 2008-05-14 |
Family
ID=39403648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710188539 Pending CN101177187A (en) | 2007-12-10 | 2007-12-10 | Technique for recovering oil tank volatilization hydrocarbon steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101177187A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107050912A (en) * | 2017-01-13 | 2017-08-18 | 陕西延长石油（集团）有限责任公司 | A kind of vapor condensation liquid recovery system and method |
| CN109045761A (en) * | 2018-07-13 | 2018-12-21 | 佛山市三水区精联自动化设备有限公司 | A kind of hydrocarbon vapour-recovery unit |
| CN110451116A (en) * | 2019-08-21 | 2019-11-15 | 西安长庆科技工程有限责任公司 | A kind of system and application method of Volatile Gas in Oil Tank recycling |
| CN110562620A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | safe recovery system and recovery process for VOCs in heavy oil storage tank |
| CN110893955A (en) * | 2019-11-18 | 2020-03-20 | 西安长庆科技工程有限责任公司 | Skid-mounted large tank air extraction device and method |
| CN111086784A (en) * | 2019-12-18 | 2020-05-01 | 浙江信汇新材料股份有限公司 | Automatic pressure supplementing and relieving process system for low-pressure tank of normal-pressure tank |
| CN111425181A (en) * | 2020-05-09 | 2020-07-17 | 新疆华隆油田科技股份有限公司 | Method for treating and recycling poisonous and flammable gas in oil well produced liquid and special device |
| CN112628110A (en) * | 2020-12-18 | 2021-04-09 | 保定市一禾电气有限公司 | Large-tank gas-liquid co-pumping energy-saving environment-friendly device |
| CN113308271A (en) * | 2021-06-09 | 2021-08-27 | 中国石油工程建设有限公司华北分公司 | Oilfield station associated gas pressure regulating system device and pressure regulating method thereof |
| CN113864646A (en) * | 2021-09-09 | 2021-12-31 | 眉山麦克在线设备股份有限公司 | One-stop hydrocarbon vapor recovery system and recovery method |
-
2007
- 2007-12-10 CN CN 200710188539 patent/CN101177187A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107050912A (en) * | 2017-01-13 | 2017-08-18 | 陕西延长石油（集团）有限责任公司 | A kind of vapor condensation liquid recovery system and method |
| CN110562620B (en) * | 2018-06-06 | 2021-10-12 | 中国石油化工股份有限公司 | Safe recovery system and recovery process for VOCs in heavy oil storage tank |
| CN110562620A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | safe recovery system and recovery process for VOCs in heavy oil storage tank |
| CN109045761A (en) * | 2018-07-13 | 2018-12-21 | 佛山市三水区精联自动化设备有限公司 | A kind of hydrocarbon vapour-recovery unit |
| CN110451116A (en) * | 2019-08-21 | 2019-11-15 | 西安长庆科技工程有限责任公司 | A kind of system and application method of Volatile Gas in Oil Tank recycling |
| CN110893955A (en) * | 2019-11-18 | 2020-03-20 | 西安长庆科技工程有限责任公司 | Skid-mounted large tank air extraction device and method |
| CN111086784A (en) * | 2019-12-18 | 2020-05-01 | 浙江信汇新材料股份有限公司 | Automatic pressure supplementing and relieving process system for low-pressure tank of normal-pressure tank |
| CN111086784B (en) * | 2019-12-18 | 2022-04-08 | 浙江信汇新材料股份有限公司 | Automatic pressure supplementing and relieving process system for low-pressure tank of normal-pressure tank |
| CN111425181A (en) * | 2020-05-09 | 2020-07-17 | 新疆华隆油田科技股份有限公司 | Method for treating and recycling poisonous and flammable gas in oil well produced liquid and special device |
| CN112628110A (en) * | 2020-12-18 | 2021-04-09 | 保定市一禾电气有限公司 | Large-tank gas-liquid co-pumping energy-saving environment-friendly device |
| CN113308271A (en) * | 2021-06-09 | 2021-08-27 | 中国石油工程建设有限公司华北分公司 | Oilfield station associated gas pressure regulating system device and pressure regulating method thereof |
| CN113308271B (en) * | 2021-06-09 | 2022-06-10 | 中国石油工程建设有限公司华北分公司 | Oilfield station associated gas pressure regulating system device and pressure regulating method thereof |
| CN113864646A (en) * | 2021-09-09 | 2021-12-31 | 眉山麦克在线设备股份有限公司 | One-stop hydrocarbon vapor recovery system and recovery method |
| CN113864646B (en) * | 2021-09-09 | 2024-02-27 | 眉山麦克在线设备股份有限公司 | One-stop hydrocarbon vapor recovery system and recovery method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101177187A (en) | Technique for recovering oil tank volatilization hydrocarbon steam | |
| CN201121028Y (en) | Device for recovering volatilized hydrocarbon steam of oil storage tank | |
| US9353315B2 (en) | Vapor process system | |
| US20070186770A1 (en) | Natural Gas Vapor Recovery Process System | |
| US20070151292A1 (en) | Vapor Recovery Process System | |
| CN103256786B (en) | Flame-suppression explosion-suppression type low-concentration coal bed gas cryogenic liquefaction device | |
| WO2017136019A1 (en) | Y-grade ngl recovery | |
| CN206720033U (en) | A kind of light oil recovery apparatus for oil tank of safety and environmental protection | |
| CA2523110C (en) | Vapor process system | |
| US20110209786A1 (en) | Vessel Compressor Methods and Systems | |
| CN103215060A (en) | Evaporable petroleum gas adsorption condensation and comprehensive recovery device | |
| CN104891061A (en) | Oil and gas recycling system of oil storage tanks | |
| CN219128766U (en) | Separation device for tail gas generated in biodiesel glycerol esterification process | |
| CN217661665U (en) | Multiphase fluid mixed transportation water-gas separation device | |
| US11859768B1 (en) | Volatile organic compounds collection system and method | |
| CN1515651A (en) | Small type skid-mounted natural gas light hydrocarbon recovering method | |
| US12012833B2 (en) | Offshore oil and gas power generation with carbon capture and beneficial use of CO2 | |
| CN103254956A (en) | Device for recycling vent natural gas by hydrate method | |
| CN108043062B (en) | Storage tank breathes processing system who discharges volatile gas | |
| CN101601969A (en) | The recovery method of oil-containing gases | |
| CN203048901U (en) | Low-cost and low-energy natural gas recovering and processing device | |
| US2961841A (en) | Underground storage product removal | |
| CN104826445B (en) | Separating process for recycling start-up tail gas of ethylene compression refrigerating system | |
| CN206973261U (en) | BOG recycling system in LNG storage tank | |
| CN207195147U (en) | Gas-pressed equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080514 |