Multi-tower series-parallel connection circulation amine liquid absorbing device
An amine liquid absorption and parallel connection technology, applied in gas fuel, petroleum industry, dispersed particle separation, etc., can solve the problems of troublesome natural gas liquefaction plant relocation, large floor space, small natural gas processing capacity, etc., and achieve short commissioning and assembly time , the device structure is simple, the effect of simple process
Inactive Publication Date: 2014-10-08
宁夏凯添燃气发展股份有限公司
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[0003] At present, traditional natural gas purification and absorption devices, equipment, instruments, pipelines and other components are assembled on-site at the natural gas collection point to provide production. The various components are intertwined with each other. The installation takes a long time and the natural gas liquefaction device needs to be relocated after installation. It is extremely cumbersome and occupies a relatively large area; and if the general traditional mobile natural gas purification and absorption device is used, due to the structural size of the equipment and the device, the degree of purification of this type of natural gas treatment is mostly insufficient and the natural gas processing capacity is small
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[0010] Such as figure 1 As shown, the present invention provides a multi-tower series-parallel circulation amine liquid absorption device, which includes an absorption tower group composed of six absorption towers connected in series and parallel, and also includes a lean liquid pump. Wherein the feed gas is connected to the feed gas inlet at the bottom of the first absorption tower 1 through a pipeline series valve; the feed gas outlet at the top of the first absorption tower 1 is connected to the feed gas inlet at the bottom of the second absorption tower 2 through a pipeline series valve, and the first absorption The upper amine liquid inlet of tower 1 is merged into the lean liquid outlet pipeline of the lean liquid pump through the pipeline series valve, and the rich liquid (amine liquid that has absorbed carbon dioxide) outlet at the bottom of the first absorption tower 1 is merged into the rich liquid outlet through the pipeline series valve valve. On the liquid outlet ...
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The invention relates to a multi-tower series-parallel connection circulation amine liquid absorbing device for natural gas. The device is characterized by comprising an absorbing tower group and a barren liquor pump, wherein the absorbing tower group consists of a first absorbing tower (1), a second absorbing tower (2), a third absorbing tower (3), a fourth absorbing tower (4), a fifth absorbing tower (5) and a sixth absorbing tower (6) which are connected in sequence; the raw material gas inlet of the first absorbing tower (1) is communicated with a raw material gas source through a pipeline; a raw material gas outlet is formed in the sixth absorbing tower (6); the inlet of the barren liquor pump is communicated with a barren amine liquor source through another pipeline; the outlet of the barren liquor pump is communicated with upper amine liquid inlets of all absorbing towers of the absorbing tower group; bottom rich liquor outlets of all absorbing towers of the absorbing tower group are communicated with a rich liquor outlet pipeline through pipelines. The invention provides the multi-tower series-parallel connection circulation amine liquid absorbing device. The device is applied to gas purification to remove acid gases such as carbon dioxide and hydrogen sulfide from gases such as natural gas and synthesis gas.
Description
technical field [0001] The invention relates to a multi-tower series-parallel circulation amine liquid absorption device for natural gas. Background technique [0002] In the production of liquefied natural gas and high-pressure natural gas using natural gas, the raw material gas needs to be purified, and the method of removing acidic gases (such as hydrogen sulfide, carbon dioxide, etc.) from the raw material gas in the purification process is the most mature and commonly used method. The volume fraction of acid gas in purified natural gas is generally required to be 100×10 -6 the following. [0003] At present, traditional natural gas purification and absorption devices, equipment, instruments, pipelines and other components are assembled on-site at the natural gas collection point to provide production. The various components are intertwined with each other. The installation takes a long time and the natural gas liquefaction device needs to be relocated after installatio...
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Login to View More IPC IPC(8): C10L3/10B01D53/78B01D53/40
Inventor 穆云飞龚晓科赵小红沈石华唐刚李志沈建成
Owner 宁夏凯添燃气发展股份有限公司