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BOG and oil gas combined recovery system and process method

A recovery system and process method technology, applied in the field of gas engineering, can solve problems such as energy waste, achieve the effect of reasonable configuration and avoid ineffective dissipation loss

Inactive Publication Date: 2020-10-30
长春燃气热力设计研究院有限责任公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main methods of oil and gas recovery are: condensation method; adsorption method; absorption method, in which the BOG needs to be equipped with a heat source, and the oil and gas condensation recovery needs to be equipped with a cold source. The two systems operate independently, and there is a certain waste of energy.

Method used

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  • BOG and oil gas combined recovery system and process method

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Embodiment Construction

[0014] see figure 1 , embodiments of the present invention include:

[0015] A combined recovery system of BOG and oil and gas, comprising: gas pump 1, first valve 2, second valve 3, third valve 4, fourth valve 5, oil and gas pump 6, filled with diethylene glycol aqueous solution 8, and inside is The cool-storage heat exchanger 7 of the double-helical coil 9; the first valve 2 is connected to the BOG pipeline generated by the LNG storage tank, the inlet of the gas pump 1 is connected to the first valve 2, and the gas pump 1 The outlet is connected to the cold storage heat exchanger 7, the cold storage heat exchanger 7 is connected to the fourth valve 5, the fourth valve 5 is connected to the oil outlet pipeline, and the third valve 4 is connected to the oil gas inlet The pipelines are connected, the third valve 4 is connected to the inlet of the oil-air pump 6, the outlet of the oil-air pump 6 is connected to the cool-storage heat exchanger 7, and the cool-storage heat exchan...

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Abstract

The invention relates to a BOG and oil gas combined recovery system and process method. The BOG and oil gas combined recovery system comprises a gas pump, a first valve, a second valve, a third valve,a fourth valve, an oil gas pump and a cold accumulation type heat exchanger. BOG generated by an LNG storage tank in a station enters a gas pipe pass of a double-helix coil in a cold accumulation type heat exchanger through the first valve and the gas pump; after heat exchange, the BOG enters a gas pipeline through the second valve; oil gas generated by an oil tank enters an oil gas pipe pass ofthe double-helix coil in the cold accumulation type heat exchanger through the third valve and the oil gas pump; after heat exchange, liquefied oil returns to the oil tank again through the fourth valve; the oil gas is condensed and recycled through cold energy of the BOG, the condensed oil gas is changed into liquid again and returns to the storage tank, the BOG is further heated and then entersa gas pipe network, meanwhile, the matching problem of cold energy released by the BOG and heat energy released by oil gas condensation is solved, and a diethylene glycol aqueous solution is adopted for cold accumulation.

Description

technical field [0001] The invention relates to the technical field of gas engineering, in particular to a combined recovery system and process method of BOG and oil gas. Background technique [0002] At present, the main methods of BOG recovery are: (1) using an external cold source to re-liquefy into LNG; (2) entering the pipeline gas after heating up and completely gasifying; (3) pressurizing into CNG to supply vehicles. The main methods of oil and gas recovery are: condensation method, adsorption method, and absorption method. Among them, a heat source is required for BOG temperature rise, and a cold source is required for oil and gas condensation recovery. The two systems operate independently, and there is a certain waste of energy. Contents of the invention [0003] The main technical problem to be solved by the present invention is to provide a combined recovery system and process method of BOG and oil and gas, that is to use the cold energy of BOG to condense and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/12
CPCC10L3/12
Inventor 冷兴阳刘婷婷马秀艳彭军张新华
Owner 长春燃气热力设计研究院有限责任公司
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