Liquid carbon dioxide production technology
A liquid carbon dioxide and production process technology, applied in the chemical industry, can solve the problems of large floor area and cumbersome production equipment
Active Publication Date: 2018-11-16
宁夏同辉气体有限公司
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Problems solved by technology
[0003] At present, the preparation of liquid carbon dioxide is to collect different waste gases. After a series of pretreatments, pressurize and cool down to form liquid carbon dioxide. However, due to the need for pretreatment of impurities in the waste gas, the entire production equipment is relatively cumbersome and occupies an area of Also big, needs improvement
Method used
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[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] see as figure 1 Shown, the technical scheme that this specific embodiment adopts is: its production process is as follows:
[0023] 1. Collect the exhaust gas and transport it to the dust filter equipment to filter and pre-treat the solid particles and larger impurities in the exhaust gas;
[0024] 2. Transport the pretreated waste gas to the condensing device;
[0025] 3. In the spray section where the waste gas is transported to the condensing device, pure water is sent to the cleaning liquid pipe in the condensing device, and the spray device sprays the waste gas to remove impurities again;
[0026] 4. After the waste gas is sprayed to remove impurities, it enters the pressurized and cooled area of the condensing device for liquefaction:
[0027] 4.1. Inject inert gas into the condensing device to increase the pressure inside the device to make the press...
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The invention discloses a liquid carbon dioxide production technology, and relates to the technical field of chemical engineering. The technology comprises the steps that waste gas is collected and conveyed to dust filter equipment, and solid particles and large impurities in the waste gas are subjected to filtration pretreatment; the pretreated waste gas is conveyed into a condensation device; when the waste gas is conveyed to a spraying section of the condensation device, pure water is conveyed to a cleaning liquid pipe in the condensation device and sprayed by the spraying device into the waste gas, and the waste gas is subjected to impurity removal treatment again; after impurities in the waste gas are removed through spraying, the waste gas enters a pressurization cooling area in thecondensation device to be liquefied; and liquid carbon dioxide purified from a purifying tower is subjected to filling and quality testing. Tedious pretreatment equipment is simplified, the occupied area of the equipment can be greatly saved, meanwhile, the preparation efficiency of liquid carbon dioxide can be improved, and practicability is higher.
Description
technical field [0001] The invention relates to the technical field of chemical industry, in particular to a process for producing liquid carbon dioxide. Background technique [0002] Liquid carbon dioxide refers to the liquefaction of carbon dioxide gas into a liquid form under high pressure and low temperature. Liquid carbon dioxide is a refrigerant that can be used to preserve food and can also be used for artificial rainfall. It is also an industrial raw material, which can be used to make soda ash, urea and soda. [0003] At present, the preparation of liquid carbon dioxide is to collect different waste gases. After a series of pretreatments, pressurize and cool down to form liquid carbon dioxide. However, due to the need for pretreatment of impurities in the waste gas, the entire production equipment is relatively cumbersome and occupies an area of Also big, needs improvement. Contents of the invention [0004] The object of the present invention is to aim at the ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F25J1/02C01B32/50
CPCC01B32/50F25J1/0238F25J1/0252F25J2210/80F25J2215/80
Inventor 范明赵中军雍杰卢立波
Owner 宁夏同辉气体有限公司