A kind of gas water purification method
A technology of gas water and aliphatic amine polyoxyethylene ether, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of complex operation and high purification cost, and achieve simplification Purification process, reduce maintenance costs, and prolong service life
Active Publication Date: 2021-06-01
张征北
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Problems solved by technology
[0006] In view of this, the present invention discloses a gas water purification method to at least solve the problems of high purification cost and complicated operation in previous gas water purification methods
Method used
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Effect test
Embodiment 1
[0031] The following test results are the use of fatty amine polyoxyethylene ether 15EO carbon chain C22
[0032]
[0033]
[0034]Remarks: The oil removal rate is high, the tar water content is higher than 4, and the suspended solids reduce the tar fluidity.
Embodiment 2
[0036] The following test results are the use of fatty amine polyoxyethylene ether 6EO carbon chain C12
[0037]
[0038]
[0039] Remarks: The oil removal rate is high, the water content of tar is lower than 4, the light tar is returned to the tar, and the specific gravity of the tar is reduced.
Embodiment 3
[0041] The following test results are the use of fatty amine polyoxyethylene ether 8EO carbon chain C14
[0042]
[0043]
[0044] Remarks: The oil removal rate is high, the water content of the tar is lower than 5, and the suspended solids reduce the tar fluidity.
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The invention discloses a method for purifying gas water, which comprises the following steps: adding aliphatic amine polyoxyethylene ether into a gas water recycling system, and then performing cooling treatment; and separating the gas water after cooling treatment in step 1) through gas water The device performs sedimentation and separation, and after removing the sediment and oil, the remaining liquid is obtained; the remaining liquid described in step 2) is passed into the phenolic ammonia recovery system for recovery and treatment, and the purification is completed; wherein, the aliphatic amine polyoxygen described in step 1) The EO number of vinyl ether is 6-15, and the carbon chain length is 12-22. In this purification method, through the selection of specific aliphatic amine polyoxyethylene ether, it can be realized that only one chemical component is added in the gas water recycling system. The effective separation of oil and liquid in gas water can be realized, the purification cost can be reduced, and the purification process can be simplified.
Description
technical field [0001] The invention discloses and relates to the technical field of coal chemical production, in particular to a gas water purification method. Background technique [0002] In today's era of rapid development, both in China and the world, the demand for energy consumption is increasing day by day, and rich coal, less oil, and lack of gas are the basic structure of my country's energy. Therefore, the development of coal chemical industry using coal as raw material is my country's priority inevitable choice. [0003] Coal chemical industry refers to the process of converting coal into gas, liquid and solid fuels and chemicals by chemical processing, mainly including coal gasification, liquefaction, dry distillation, tar processing and calcium carbide acetylene chemical industry. Among the available production technologies for coal chemical industry, coking is the earliest applied process, and it is still an important part of the chemical industry to this day....
Claims
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IPC IPC(8): C02F9/04
CPCC02F1/40C02F9/00C02F2001/007
Inventor 张征北
Owner 张征北