Crude oil lading oil gas recovering method
A recovery method, oil and gas technology, applied in separation methods, chemical instruments and methods, ship accessories, etc., can solve problems such as energy waste, surrounding environmental impact, environmental impact, etc., and achieve high economic benefits and significant environmental benefits.
Active Publication Date: 2015-02-18
中国中化股份有限公司 +1
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Problems solved by technology
[0002] At present, domestic crude oil terminals will produce a large amount of volatile organic gases (VOC) and discharge them in an orderly manner during the oil loading process, which is the bottleneck of the normal production and operation of enterprises, and also has a certain impact on the environment
Since there are no corresponding regulations in China at present, if the oil and gas are directly discharged into the atmosphere, it will not only affect the surrounding environment, but also cause a large waste of energy
However, the recovery technology for oil and gas produced during crude oil loading has not yet been developed.
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[0016] The crude oil loading oil gas recovery method of the present invention comprises the following steps:
[0017] A. Use the gas delivery arm or gas delivery hose of the ship-to-shore docking system to connect with the oil and gas special interface of the tanker to lead out the gas containing oil and gas in the tanker's cabin. During this process, it will pass through the online monitoring system and the front pipeline of the online monitoring system There is a safety valve on the top, and an emergency shut-off valve behind it; the online monitoring system can monitor the oxygen content, hydrocarbon concentration, sulfur concentration, oil and gas pressure, temperature and flow parameters of the oil and gas online, and through interlocking with the emergency shut-off valve, Realize the functions of self-inspection, automatic alarm and automatic protection. When the volume percentage of oxygen content of oil and gas in the cabin is equal to or higher than 8%, or when there i...
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The invention aims to provide a crude oil lading oil gas recovering method which is suitable for crude oil lading oil gas recovering in large-size port wharfs, so that the environmental pollution caused by cabin oil gas discharging in the process of lading is effectively processed, zero discharging of wharf operation is realized, and meanwhile, a certain economic benefit is generated by recovering and reusing the original oil gas discharged into air. The recovering method comprises the following steps of: butting with a special oil gas interface of a tanker by utilizing a gas transmission arm or a gas transmission hosepipe of a ship-shore butting system, and leading out the oil-bearing gas in a tanker cabin, wherein the oil gas passes an on-line monitoring system in the process of being transmitted to an oil gas recovering device; carrying out removing condensate of the oil-bearing gas which is led out of the cabin, then guiding the oil-bearing gas into a fiber liquid membrane desulphurization system, feeding the oil gas filtered by a filter of the fiber liquid membrane desulphurization system into a first-stage fiber liquid membrane desulphurization tank, carry outing one-stage desulphurization processing, then feeding the oil gas into a second-stage fiber liquid membrane desulphurization tank and carrying out two-stage desulphurization processing, wherein the desulfurizer used by the fiber liquid membrane desulphurization system is alkali liquor.
Description
technical field [0001] The invention relates to a method for recovering oil gas from crude oil on board. Background technique [0002] At present, domestic crude oil terminals will produce a large amount of volatile organic gases (VOC) and discharge them in an orderly manner during the oil loading process, which is the bottleneck of the normal production and operation of enterprises, and also has a certain impact on the environment. Since there are no corresponding regulations in China at present, if the oil and gas are directly discharged into the atmosphere, it will not only affect the surrounding environment, but also cause a large waste of energy. However, the recovery technology for oil and gas produced during crude oil loading has not yet been developed. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a crude oil loading oil gas recovery process system suitable for large port wharves, to eff...
Claims
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IPC IPC(8): B01D53/78B01D53/48B63B27/25B01D53/02B01D53/14
Inventor 唐炳文陈坚邵帅陈珊珊徐叶新唐光忠钱建跃包成华顾承宏柳剑锋
Owner 中国中化股份有限公司