CN114602300A - Zero-emission oil gas recovery device and method - Google Patents
Zero-emission oil gas recovery device and method Download PDFInfo
- Publication number
- CN114602300A CN114602300A CN202210176907.8A CN202210176907A CN114602300A CN 114602300 A CN114602300 A CN 114602300A CN 202210176907 A CN202210176907 A CN 202210176907A CN 114602300 A CN114602300 A CN 114602300A
- Authority
- CN
- China
- Prior art keywords
- oil
- gas
- inert gas
- tank
- cargo
- 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
- 238000011084 recovery Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims abstract description 155
- 239000007789 gas Substances 0.000 claims abstract description 126
- 239000011261 inert gas Substances 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 15
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 12
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 10
- 239000000295 fuel oil Substances 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 7
- 239000013589 supplement Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000003009 desulfurizing effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000035699 permeability Effects 0.000 claims 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000010779 crude oil Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- -1 carbon hydrocarbons Chemical class 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/78—Arrangements of storage tanks, reservoirs or pipe-lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D9/00—Apparatus or devices for transferring liquids when loading or unloading ships
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
- B67D7/0478—Vapour recovery systems constructional features or components
- B67D2007/0494—Means for condensing the vapours and reintroducing them into the storage tanks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a zero-emission oil gas recovery device and a zero-emission oil gas recovery method, wherein a vent pipe is arranged at the outlet of a cargo oil tank of a ship and is connected with a buffer tank, the buffer tank is connected with an oil gas supercharger, the oil gas supercharger is connected with a cold dryer, oil outlets of the oil gas supercharger and the cold dryer are connected with a storage tank, and an oil gas pipeline behind the cold dryer is divided into three directions: the first path returns to the cargo oil tank of the ship; the second path is used for emergency evacuation; and in the third path, an oil gas pipeline is connected to an air inlet pipe of the inert gas generator, a fan is connected with an air outlet and an air pipeline, a combustion device is connected with a storage tank through a first pump and is simultaneously connected with a fuel oil cabinet, the inert gas generator is connected with an inert gas supercharger, the inert gas supercharger is connected with an inert gas storage tank, and an outlet of the inert gas storage tank is arranged in a cargo oil tank of the ship. The oil gas recovery device provided by the invention not only utilizes the recovery liquid which can not reach the oil product standard, but also has no hydrocarbon to be discharged into the atmosphere to pollute the air, and has the advantages of low energy consumption, small volume and no secondary pollution.
Description
Technical Field
The invention belongs to the technical field of ship cargo oil tank waste gas treatment, and particularly relates to a waste gas zero-emission oil gas recovery device and method.
Background
The rapid development of the transportation of the ship oil cargo greatly meets the development requirements of the economic society, but also brings Volatile Organic pollutants (VOC) of oil gas, and the Volatile Organic Compounds of oil gas pollute the atmosphere.
The ship transportation of crude oil is the most important transportation mode of crude oil import in China, and the crude oil generates high-concentration and large-treatment-capacity oil and gas emission in transportation and wharf ship loading operation, so that huge economic loss is caused, environmental pollution is caused in oceans and areas around the wharf, and potential safety hazards are brought to production and life.
As the oil gas recovery device in port and wharf is gaining attention, the application of the oil gas recovery device in the crude oil transportation vessel will become necessary and urgent, and the oil gas recovery device will become an indispensable matching device on the crude oil transportation vessel. However, the existing wharf oil gas recovery technology on land has the defects of high energy consumption, large equipment volume, unstable discharge, incomplete recovery and the like, so that it is very necessary and urgent to research an oil gas recovery device which has low energy consumption, small volume and no secondary pollution on a ship.
Disclosure of Invention
1. The technical problem to be solved is as follows:
the existing wharf oil gas recovery technology on land has the defects of high energy consumption, large equipment volume, unstable discharge, incomplete recovery and the like.
2. The technical scheme is as follows:
in order to solve the problems, the invention provides a zero-emission oil gas recovery device which comprises a ship cargo oil tank, wherein a vent pipe is arranged at the outlet of the ship cargo oil tank, the vent pipe is connected with a buffer tank, the other end of the buffer tank is connected with an oil gas supercharger, the other end of the oil gas supercharger is connected with a cold dryer, the oil gas supercharger and the cold dryer are both provided with oil outlets and are connected to an oil inlet of a storage tank through pipelines, and oil gas pipelines behind the cold dryer are divided into three directions: the first path returns to the cargo oil tank of the ship; the second path is drained in an emergency, and the tail end of the second path is provided with a pipe end flame arrester; the third route, on the air inlet pipe of oil gas pipeline access inert gas generator, and be furnished with adjustable valve on the oil gas pipeline before the access point, fan and air outlet and air piping connection, the anterior burner that is divided into of inert gas generator, the rear portion divide into cooling defogging dust collector, burner connects through first pump and storage tank, connects through second pump and fuel cabinet simultaneously, inert gas generator and inert gas booster compressor are connected, the inert gas booster compressor other end and inert gas storage tank are connected, the export of inert gas storage tank is in boats and ships cargo oil tank top, the export is equipped with relief pressure valve and automatic control valve.
The ship cargo oil tank is provided with a pressure transmitter and uploads the gas phase space pressure of the ship cargo oil tank 1 to a control system.
The vent pipe is provided with an independent automatic valve.
And a temperature sensor, a concentration sensor and a pressure sensor are arranged in the buffer tank, and parameters of the collected temperature, concentration and pressure are transmitted to a control system.
And a desulfurizer is added in the buffer tank.
The oil gas booster compressor is an explosion-proof water-cooling booster compressor, and the pressure of giving vent to anger is between 0~10 bar.
And a mixer is arranged in the air pipeline and is arranged behind the oil-gas access point in the air pipeline.
The inert gas generator preferably uses a recovery liquid supplied from a tank, the tank being equipped with a level gauge and delivering the level collected to a control system.
The invention also provides a method for recovering oil gas by using the zero-emission oil gas recovery device, which comprises the following steps: the method comprises the following steps: when the pressure of a gas phase space in a cargo oil tank of a ship reaches a certain value, a system automatically opens a main valve of an oil gas recovery pipeline, oil gas enters a buffer tank, an oil gas supercharger is started at the same time, the pressure of the oil gas is increased to 4-8 bar from normal pressure, after the oil gas is cooled to normal temperature by a cooler after the supercharger, part of high-carbon hydrocarbons are liquefied, and a recovery liquid flows to a storage tank 12 through a pipeline to be stored; step two: the high-pressure oil gas then enters a cold dryer for cooling; the liquefied oil gas recovery liquid is converged to the storage tank 12 for storage through a pipeline; step three: after passing through the cold dryer, the low-temperature oil gas directly returns to the cargo oil tank under the condition that the tank pressure is within the range of the set value; if the cabin pressure is higher than the set value due to the influence of the external temperature, entering the next step; step four: the system monitors the oxygen content and the total hydrocarbon content of the inlet air of the inert gas generator after the oil gas is mixed, adjusts and controls the proportion of the oil gas and the air according to the monitoring result, simultaneously monitors the total air input of the inert gas generator, and controls the fuel quantity according to the designed air-oil ratio; step five: the fuel oil of the inert gas generator preferentially uses the recovery liquid stored in the storage tank supplied by the first pump, when the storage amount of the recovery liquid is insufficient, the second pump 10 is started, the daily fuel oil is used as supplement, the inert gas generator has the function of generating qualified inert gas and also has inert gas treatment capacity, so that the oxygen content, the water content and the dust content of the inert gas at the outlet are all lower than set values; step six: the method is characterized in that the inert gas is pressurized to be more than 8bar under the action of an inert gas booster and stored in an inert gas storage tank, the inert gas storage tank is installed in a deck area, and when the pressure of the cargo oil tank is lower than a certain value, a gas supply valve can be automatically opened by a system to supplement the inert gas to a corresponding cargo hold, so that the cargo hold is maintained in a low-cargo-loss state.
In the third step, if the cooling temperature is higher than 0 ℃, the cold box of the cold drying machine is a single channel; if the cooling temperature is lower than 0 ℃, the cold box is set to be double channels, and when frost and ice are blocked on one channel, the cold box can be switched to the other channel to work.
3. Has the advantages that:
the oil gas recovery device provided by the invention not only utilizes the recovery liquid which can not reach the oil product standard, but also has no hydrocarbon to be discharged into the atmosphere to pollute the air, and has the advantages of low energy consumption, small volume and no secondary pollution.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Description of reference numerals: 1. a cargo tank of the ship; 2. a buffer tank; 3. an oil gas supercharger; 4. a cooling and drying machine; 5. a fan; 6. an inert gas generator; 7. an inert gas supercharger; 8. an inert gas storage tank; 9. a fuel tank; 10. a second pump; 11. a first pump; 12. and (4) storage tank.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, vent pipes are installed at the outlet of a cargo tank 1 of a ship, a confluence buffer tank 2 is arranged, each vent pipe is provided with an independent automatic valve for controlling the flow of oil gas, and the cargo tank 1 of the ship is provided with a pressure transmitter for transmitting the gas phase space pressure of the cargo tank 1 of the ship to a system. Generally, a cargo ship is divided into a plurality of cargo tanks 1, and a vent pipe is installed at the outlet of each cargo tank 1 and merged with a value buffer tank 2.
When the pressure of the gas phase space of the cargo oil tank 1 of the ship reaches a system set value, the corresponding vent pipe valve is opened, and then oil gas is converged into the buffer tank 2. The design pressure of the buffer tank 2 meets the explosion-proof requirement, and the safety under extreme conditions is ensured. And parameters of temperature, concentration and pressure of oil gas are monitored in the buffer tank 2. If the content of H2S in the oil gas is higher, a desulfurizing agent is added in the buffer tank 2 and a cooling water coil is matched, namely the buffer tank 2 has a desulfurizing function.
The oil gas booster 3 is an explosion-proof water-cooling booster, has a small volume, can adjust the gas outlet pressure between 0 and 10bar, and can adjust the gas outlet pressure to the optimal and most energy-saving working pressure according to different oil products. Under the combined action of pressurization and cooling, the oil gas supercharger 3 can recover part of oil gas, and the recovered liquid flows to the storage tank 12 through a pipeline to be stored. The pressurized oil gas enters a cold dryer 4 for cooling, the cold dryer is a single-stage refrigerating device, and the cooling temperature is adjustable between minus 30 ℃ and 10 ℃. The evaporator of the cold dryer 4 is divided into a single-channel type or a double-channel type according to different oil products, namely, if the cooling temperature is above 0 ℃, the evaporator is a single channel; if the cooling temperature is below 0 ℃, the evaporator is provided with two channels. The double-channel cold dryer 4 can switch channels and can ensure that the temperature fluctuation of an oil gas outlet is lower. The oil gas recovered by the cold dryer 4 also flows to the storage tank 12 for storage.
The oil gas pipeline behind the cold dry machine 4 is divided into three directions: the first path returns to the cargo oil tank 1 of the ship; the second path is drained in an emergency, and the tail end of the second path is provided with a pipe end flame arrester; and the third path leads to an air pipeline of the inert gas generator 6. Each pipeline is provided with an automatic control valve for switching the flow direction of oil gas.
Under the condition that the gas phase pressure of the cargo oil tank 1 allows, normal oil gas can return to the cargo oil tank 1 through the first pipeline to form a closed cycle, and the pressure of the cargo oil tank 1 can be reduced to a normal value by recovering part of the oil gas and reducing the temperature of the oil gas. The second path is used only in emergency, and the discharged oil gas is processed as well, so that the requirements of relevant national standards are met. The third path is opened and used under the condition that the pressure of the cargo oil tank 1 is higher and the treated oil gas is not allowed to return to the tank.
The fan 5, the inert gas generator 6, the inert gas booster 7 and the second pump 10 are located in a safe area. The inert gas generator 6 is of a vertical or horizontal structure, and mainly has the function of mixing residual hydrocarbons in oil gas, recovered liquid hydrocarbons and a proper amount of air in the inert gas generator 6 for matched combustion, so that the oxygen content of the produced qualified inert gas is less than 5%. The oil gas is converged into an air pipeline of an inert gas generator 6 after passing through a valve with adjustable opening, and the air is provided by a fan 5 with adjustable flow. An air pipeline behind the oil gas access point is provided with a mixer, so that the oil gas and the air are uniformly mixed. The system monitors parameters such as oxygen content, total hydrocarbon content and gas flow of the mixed gas, automatically calculates the oil amount required by combustion, and controls the first pump 11 to supply oil from the storage tank 12 and the second pump 10 to the inert gas generator 6 from the fuel cabinet 9.
The first pump 11 and the second pump 10 can both regulate flow, the system preferentially uses the recovery liquid supplied by the first pump 11 from the storage tank 12, the storage tank 12 is provided with a liquid level meter and has a remote transmission function, when the liquid level of the recovery liquid is reduced to a set value, an alarm is sent, the first pump 11 reduces the flow to operate until the operation is stopped, and meanwhile, the second pump 10 is started to operate until the set flow is reached.
The front part of the inert gas generator 6 is provided with a combustion device, and the rear part is provided with a cooling, demisting and ash removing device. The treated qualified inert gas is pressurized to 1-10 bar by an inert gas booster 7 and then stored in an inert gas storage tank 8, the inert gas storage tank 8 is located in a deck area, a pressure reducing valve and an automatic control valve are arranged at an outlet of the inert gas storage tank, and when the pressure of the cargo oil tank 1 is reduced due to reasons such as night or reduction of ambient temperature, an outlet valve of the inert gas storage tank 8 is automatically opened to supplement the inert gas to the cargo oil tank 1. Therefore, the cargo hold is maintained in a low cargo damage state, thereby not only the recovery liquid which can not reach the oil product standard is utilized, but also no hydrocarbon is discharged into the atmosphere to pollute the air.
The invention also provides a method for recovering oil gas by using the zero-emission oil gas recovery device, when the pressure of the gas phase space in the cargo oil tank of the ship reaches a certain value, the system automatically opens the main valve of the oil gas recovery pipeline, and oil gas enters the buffer tank. Simultaneously, start the oil gas booster compressor, improve 4~8bar with oil gas pressure from the ordinary pressure, after oil gas cools off to the normal atmospheric temperature through booster compressor aftercooler, will have some high carbon hydrocarbons to liquefy here, the recovery liquid flows to the storage tank through the pipeline and stores. The high-pressure oil gas then enters the cold dryer for cooling, and the cooling temperature can be set according to the type of the oil gas. If the cooling temperature is higher than 0 ℃, the cooling box is a single channel; if the cooling temperature is lower than 0 ℃, the cold box is set to be double channels, and when frost and ice are blocked on one channel, the cold box can be switched to the other channel to work. The liquefied oil gas recovery liquid is converged to a storage tank for storage through a pipeline. Normally under the circumstances that cabin pressure allows, low temperature oil gas directly gets back to the cargo oil hold, and the total hydrocarbon content in the oil gas is lower this moment, and the temperature is also lower simultaneously, gets back to and can restrain oil gas volatilization behind the cargo oil hold, reduces the goods and decreases the loss, does not have any oil gas to discharge to the atmosphere simultaneously. If the outside temperature is high and the cabin pressure is not low, the oil gas treated by the cold dryer is led to the inert gas generator. The oil gas pipeline is connected to the air inlet pipe of the inert gas generator, and an adjustable valve is arranged on the oil gas pipeline before the connecting point. The system monitors the oxygen content and the total hydrocarbon content of the inlet gas of the inert gas generator after oil gas mixing, and adjusts and controls the proportion of the oil gas and the air according to the monitoring result. Meanwhile, the system also monitors the total air input of the inert gas generator and controls the fuel quantity according to the designed air-fuel ratio. The fuel oil of the inert gas generator preferentially uses the recovery liquid stored in the storage tank supplied by the first pump, and when the storage amount of the recovery liquid is insufficient, the second pump is started, and daily fuel oil is used as supplement. Besides the function of generating qualified inert gas, the inert gas generator also has the capacity of treating the inert gas, so that the oxygen content, the water content and the dust content of the inert gas at an outlet are all in lower levels. Then, the inert gas is pressurized to be more than 8bar under the action of an inert gas booster and is stored in an inert gas storage tank. The system can automatically open the gas supply valve to supplement the corresponding cargo hold with inert gas when the pressure of the cargo oil hold is lower than a certain value, thereby maintaining the cargo hold in a low cargo damage state.
The method has remarkable effects of emission reduction and energy conservation, and takes 400m heavy-load/h oil gas recovery device as an example, the unit can reduce the emission of 200kg of hydrocarbon every hour, for example, 400000kg of hydrocarbon can be reduced by 2000h of operation every year, which is reduced to 571440kg of standard coal, so that the carbon emission is greatly reduced.
Claims (10)
1. The utility model provides a "zero release" vapor recovery system device, includes boats and ships cargo oil tank (1), its characterized in that: the export of boats and ships cargo tank (1) is equipped with the permeability cell, buffer tank (2) are connected to the permeability cell, oil gas booster compressor (3) are connected to the other end of buffer tank (2), the oil gas booster compressor (3) other end and cold machine (4) of doing are connected, oil gas booster compressor (3) and cold machine (4) of doing all are equipped with the oil-out, through the oil inlet of pipe connection to storage tank (12), the oil gas pipeline behind cold machine (4) divide into three direction: the first path returns to the cargo oil tank (1) of the ship; the second path is drained in an emergency, and the tail end of the second path is provided with a pipe end flame arrester; third route, on the air inlet pipe of oil gas pipeline access inert gas generator (6), and be furnished with adjustable valve on the oil gas pipeline before the access point, fan (6) and air outlet and air piping connection, inert gas generator (6) front portion is combustion apparatus, and the rear portion is cooling defogging dust collector, combustion apparatus passes through first pump (11) and storage tank (12) are connected, connects through second pump (10) and fuel cabinet (9) simultaneously, inert gas generator (6) and inert gas booster compressor (7) are connected, the inert gas booster compressor (7) other end and inert gas storage tank (8) are connected, the export of inert gas storage tank (8) is in boats and ships goods oil tank (1) top, the export is equipped with relief pressure valve and automatic control valve.
2. The "zero emission" oil and gas recovery device of claim 1, wherein: the ship cargo oil tank (1) is provided with a pressure transmitter, and the pressure of the gas phase space of the ship cargo oil tank (1) is uploaded to a control system.
3. The "zero emission" oil and gas recovery device of claim 1, wherein: the vent pipe is provided with an independent automatic valve.
4. The "zero emission" oil and gas recovery device of any one of claims 1 to 3, wherein: and a temperature sensor, a concentration sensor and a pressure sensor are arranged in the buffer tank (2), and parameters of the collected temperature, concentration and pressure are transmitted to a control system.
5. The "zero emission" oil and gas recovery device of claim 4, wherein: and a desulfurizing agent is added in the buffer tank (2).
6. The "zero emission" oil and gas recovery device of any one of claims 1 to 3, wherein: the oil gas booster compressor (3) is an explosion-proof water-cooling booster compressor, and the air outlet pressure is 0-10 bar.
7. The "zero emission" oil and gas recovery device of any one of claims 1 to 3, wherein: and a mixer is arranged in the air pipeline and is arranged behind the oil-gas access point in the air pipeline.
8. The "zero emission" oil and gas recovery device of any one of claims 1 to 3, wherein: the inert gas generator (6) preferably uses a recovery liquid supplied from a tank (12), the tank (12) being equipped with a level gauge and transmitting the level collected to a control system.
9. A method of oil and gas recovery using a "zero emission" oil and gas recovery device according to any one of claims 1 to 8, comprising the steps of: the method comprises the following steps: when the pressure of a gas phase space in a cargo oil tank (1) of a ship reaches a certain value, a system automatically opens a main valve of an oil gas recovery pipeline, oil gas enters a buffer tank (2), simultaneously, an oil gas supercharger is started to increase the pressure of the oil gas from normal pressure to 4-8 bar, after the oil gas is cooled to normal temperature by a cooler after the supercharger, part of high-carbon hydrocarbons are liquefied, and recovery liquid flows to a storage tank (12) through a pipeline for storage; step two: the high-pressure oil gas then enters a cold dryer for cooling; the liquefied oil gas recovery liquid is converged to a storage tank (12) through a pipeline for storage; step three: after passing through the cold dryer, the low-temperature oil gas directly returns to the cargo oil tank under the condition that the tank pressure is within the range of the set value; if the cabin pressure is higher than the set value due to the influence of the external temperature, entering the next step; step four: the system monitors the oxygen content and the total hydrocarbon content of the inlet air of the inert gas generator after the oil gas is mixed, adjusts and controls the proportion of the oil gas and the air according to the monitoring result, simultaneously monitors the total air input of the inert gas generator, and controls the fuel quantity according to the designed air-oil ratio; step five: the fuel oil of the inert gas generator preferentially uses the recovery liquid stored in the storage tank (12) supplied by the first pump (11), when the storage amount of the recovery liquid is insufficient, the second pump (10) is started, the daily fuel oil is used as supplement, the inert gas generator has the function of generating qualified inert gas and also has inert gas treatment capacity, so that the oxygen content, the water content and the dust content of the inert gas at the outlet are all lower than set values; step six: the method is characterized in that the inert gas is pressurized to be more than 8bar under the action of an inert gas booster and stored in an inert gas storage tank, the inert gas storage tank is installed in a deck area, and when the pressure of the cargo oil tank is lower than a certain value, a gas supply valve can be automatically opened by a system to supplement the inert gas to a corresponding cargo hold, so that the cargo hold is maintained in a low-cargo-loss state.
10. The method of claim 9, wherein: in the third step, if the cooling temperature is higher than 0 ℃, the cold box of the cold drying machine is a single channel; if the cooling temperature is lower than 0 ℃, the cold box is set to be double channels, and when frost and ice are blocked on one channel, the cold box can be switched to the other channel to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176907.8A CN114602300A (en) | 2022-02-25 | 2022-02-25 | Zero-emission oil gas recovery device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176907.8A CN114602300A (en) | 2022-02-25 | 2022-02-25 | Zero-emission oil gas recovery device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114602300A true CN114602300A (en) | 2022-06-10 |
Family
ID=81860028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210176907.8A Pending CN114602300A (en) | 2022-02-25 | 2022-02-25 | Zero-emission oil gas recovery device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114602300A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173415A (en) * | 2011-01-06 | 2011-09-07 | 上海汉盛船舶技术有限公司 | Direct-fired high pressure output-type inert gas generator for ship |
| CN104443897A (en) * | 2014-10-31 | 2015-03-25 | 浙江海洋学院 | Comprehensive treatment device and method for crude oil tank emergent gas and ship tail gas recycle |
| KR20190127020A (en) * | 2018-05-03 | 2019-11-13 | 대우조선해양 주식회사 | Recovery of Volatile Organic Compounds System and Method for a Tanker |
| CN112391202A (en) * | 2020-10-30 | 2021-02-23 | 南通亚泰工程技术有限公司 | Wharf storage tank, ship inerting and oil gas recovery integrated device |
| CN218130988U (en) * | 2022-02-25 | 2022-12-27 | 南通亚泰工程技术有限公司 | Oil gas recovery device |
-
2022
- 2022-02-25 CN CN202210176907.8A patent/CN114602300A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173415A (en) * | 2011-01-06 | 2011-09-07 | 上海汉盛船舶技术有限公司 | Direct-fired high pressure output-type inert gas generator for ship |
| CN104443897A (en) * | 2014-10-31 | 2015-03-25 | 浙江海洋学院 | Comprehensive treatment device and method for crude oil tank emergent gas and ship tail gas recycle |
| KR20190127020A (en) * | 2018-05-03 | 2019-11-13 | 대우조선해양 주식회사 | Recovery of Volatile Organic Compounds System and Method for a Tanker |
| CN112391202A (en) * | 2020-10-30 | 2021-02-23 | 南通亚泰工程技术有限公司 | Wharf storage tank, ship inerting and oil gas recovery integrated device |
| CN218130988U (en) * | 2022-02-25 | 2022-12-27 | 南通亚泰工程技术有限公司 | Oil gas recovery device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204060975U (en) | A kind of high voltage/low voltage fuel gas supply system of Ship Power Equipment | |
| CN113915518B (en) | Nitrogen system of hydrogenation station | |
| CN105080278A (en) | Oil and gas recovery method | |
| CN101058401B (en) | LNG pressure regulating system and pressure regulating method thereof | |
| CN206352725U (en) | A kind of LNG fuel low pressure air supply system peculiar to vessel of High redundancy | |
| CN107524911A (en) | The liquid oxygen filling of underwater operation platform and recovery system | |
| CA2803562A1 (en) | System and method of capturing, processing and utilizing stranded natural gas | |
| CN204647843U (en) | LNGV (liquefied natural gas vehicle) liquid-adding device | |
| CN104100389B (en) | The fuel transmission & distribution seal modules safe delivery system of double fuel power fishery vessel | |
| CN218130988U (en) | Oil gas recovery device | |
| WO2018102959A1 (en) | Lng supply system | |
| CN214790473U (en) | Integrated LNG (liquefied Natural gas) supply tool | |
| CN201437457U (en) | Online automatic recovery device for oil tank volatile gas | |
| CN112572806B (en) | Loop control and nitrogen control coupling system comprehensively utilizing aircraft cabin pressure and working method | |
| CN212720484U (en) | Natural gas liquefaction system | |
| CN114602300A (en) | Zero-emission oil gas recovery device and method | |
| CN113550832A (en) | LPG fuel adjusting valve group unit of dual-fuel low-speed diesel engine | |
| CN102425725A (en) | System and method for reclaiming boil off gas (BOG) in liquefied natural gas (LNG) storage tank | |
| CN202327654U (en) | System for recycling boil-off gas (BOG) in liquefied natural gas (LNG) storage tank | |
| CN2875508Y (en) | Low pressure carbon dioxide fire-extinguishing system with self-pressure increasing function | |
| CN207405685U (en) | Energy-saving Ammonia Production and waterworks for firefighting | |
| CN204437697U (en) | LNG low-temperature storage tank voltage-stabilizing protection device | |
| CN113464317A (en) | Gas system, dual-fuel host power system and ship | |
| CN104819378B (en) | Liquefied natural gas (LNG) automobile liquid adding device | |
| CN220890362U (en) | Fuel supply system of marine diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |