Energy-saving gas separation technology using membrane method
A technology of gas separation and membrane separator, which is applied in separation methods, dispersed particle separation, chemical instruments and methods, etc. It can solve problems such as high water and oil content, high energy consumption, and incomplete purification of raw gas, so as to save regeneration The effect of gas consumption
Inactive Publication Date: 2012-05-16
SHANGHAI RICH GAS EQUIP
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[0006] The technical problem to be solved by the present invention is to provide an energy-saving membrane gas separation process, which aims to solve the above-mentioned problems of incomplete purification of feed gas, mainly high moisture and oil content, and high energy consumption
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[0011] A preferred embodiment will be given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.
[0012] Such as figure 2 As shown, the energy-saving membrane gas separation process of the present invention uses a heatless regenerative adsorption dryer to replace the cold dryer as the water removal equipment of the membrane gas separation equipment. The heatless regenerative adsorption dryer includes the first drying tower 7A and the second drying tower 7B, five pneumatic valves QV1, QV2, QV3, QV4, QV5, one muffler 2B, two one-way valves ZV3, ZV4 and others Auxiliary parts, heatless regenerative adsorption dryer is a kind of equipment with strong water removal ability. Usually, the normal pressure dew point can reach -40°C to -60°C, and the water content of the treated gas is that of the cold dryer. Below 12%, the effect is very significant, and the heatless regenerative adsorption dryer also has a str...
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The invention discloses an energy-saving gas separation technology using a membrane method. Feed gas is dried by a heatless regeneration adsorption-type dryer; a first drying tower and a second drying tower of the heatless regeneration adsorption-type dryer run, regenerate and are pressurized alternately according to a certain period; the dried feed gas is subjected to gas separation through a membrane separator, and the finished product gas and waste gas are produced at the same time; the waste gas flows back to the first drying tower or the second drying tower, and blows an adsorbent bed layer in the first drying tower or the second drying tower so as to take away moisture adsorbed by the adsorbent and regenerate the adsorbent in the drying tower; and the waste gas is discharged to the atmosphere finally. According to the energy-saving gas separation technology using the membrane method disclosed by the invention, the waste gas generated by the membrane separator is completely utilized to realize the action and effect of regenerating the adsorbent in the drying tower, so that the consumption of the feed gas for regeneration of the heatless regeneration adsorption-type dryer is completely saved.
Description
technical field [0001] The invention relates to a membrane gas separation technology, in particular to a membrane gas separation energy-saving technology. Background technique [0002] Membrane gas separation equipment is a kind of gas separation and purification equipment, which is widely used in nitrogen, oxygen, hydrogen and other industries. [0003] Membrane gas separation equipment generally includes a compressor 1, a cold dryer 2, an oil-water separator 3, a filter 4, a heater 5, and a membrane separator 6. The schematic diagram of its composition is shown in figure 1 . [0004] Due to the relatively high working pressure of the membrane separator, in order to achieve the ideal working pressure, a compressor is used to compress the raw gas to meet the working pressure requirements of the membrane separator; due to the quality requirements of the membrane separator for the raw gas Relatively high, especially the content of dust, oil and water in the raw gas cannot ex...
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IPC IPC(8): B01D53/22B01D53/26B01D53/02
Inventor 张军江昱
Owner SHANGHAI RICH GAS EQUIP