A method for burning petrochemical waste liquid based on gas fuel
A petrochemical and gas fuel technology, applied in the direction of combustion methods, incinerators, combustion types, etc., can solve the problems of petrochemical waste alkali environmental pollution, unreasonable gas fuel use ratio, high processing cost, etc., to avoid tail gas pollution and even The effect of turning off the engine to stop the problem, solving the energy waste and reducing the service life of the equipment, and reducing the treatment cost
Active Publication Date: 2020-12-22
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0005] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a reasonable combustion load by adjusting the gas fuel and petrochemical waste liquid to a reasonable ratio, reduce the treatment cost, and reduce the damage to the device caused by the excessive combustion load. The method of incinerating petrochemical waste liquid overcomes the technical problem of unreasonable gas fuel ratio in the prior art, and solves the problem of environmental pollution and high processing cost of petrochemical waste alkali in the prior art
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[0020] Embodiments of the present invention will be described in detail below in conjunction with the examples. If no specific conditions are indicated in the examples, it shall be carried out according to conventional conditions or conditions commonly used in the same industry.
[0021] A 100,000-ton cyclohexanone waste alkali incineration plant includes water-cooled walls, water-cooled screens, evaporation tube screens, steam drums, economizers, and air preheaters, etc. The square combustion chamber is composed of water-cooled walls with a size of 3.85m× 3.85 meters, the waste liquid incineration treatment process is as follows:
[0022] The saponified waste caustic liquor is pressurized to 1.8-2.5MPa and then sent to the saponified liquid spray gun, and after atomization, it enters the alkali recovery boiler, suspended and dried in the furnace, and burned in space (suspended combustion). The sodium salt of organic acid in the saponification liquid is converted into Na 2 CO...
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The invention discloses a method for incinerating petrochemical waste liquid based on gas fuel. According to the method, the petrochemical waste liquid is sprayed into a combustion area of a waste alkali incinerator in an atomization mode, fuel gas is used as combustion-supporting fuel so as to burn in the condition that oxygen-containing gas is blown in, and the temperature of the combustion areais controlled to be 900 to 1200 DEG C; the feeding amount of the petrochemical waste liquid and the fuel gas meets the conditions that: the ratio of the amount of the petrochemical waste liquid per hour to the cross sectional area of a hearth of the combustion area of the waste alkali incinerator is equal to 0.4 to 0.75 t / h.m<2>, and the ratio of the amount of the fuel gas per hour to the cross sectional area of the hearth of the combustion area of the waste alkali incinerator is equal to 0.10 to 0.135 t / h.m<2>. According to the method, the reasonable burning load can be realized, the processing cost is reduced, the damage of excessive combustion load to the device is reduced, and the method is favorable for popularization and application of a waste liquid incineration technique in the industry.
Description
technical field [0001] The invention relates to a treatment method for petrochemical waste liquid, and more particularly relates to a method for incinerating waste cyclohexanone lye by using gas fuel, belonging to the technical field of petrochemical industry. Background technique [0002] The petrochemical industry, such as the oxidation of cyclohexane to cyclohexanone, produces a large amount of high-concentration organic waste lye, making it up to standard treatment was once an environmental protection bottleneck for the industry's capacity expansion. In the late 1990s, Sinopec Baling Company successfully developed the waste alkali incineration technology based on the alkali recovery furnace method, which has the advantages of high COD removal rate and meets the national environmental emission standards after treatment, and has gradually become a waste alkali treatment process for cyclohexanone saponification. The mainstream technology has been put into application in mos...
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IPC IPC(8): F23G7/04
CPCF23G7/04F23G2204/103F23G2206/203F23G2209/101Y02E20/12
Inventor 黎树根陈立新刘洪武张君辉
Owner CHINA PETROLEUM & CHEM CORP
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