Treatment method of circulating water with leaking oil

A treatment method and circulating water technology, applied in the direction of oxidized water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of expensive biological enzyme purifiers and achieve high concentration Multiples, simple operation, low pollution effect
CN102730868AActive Publication Date: 2012-10-17CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2012-10-17

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Abstract

The invention provides a treatment method of circulating water with leaking oil. The method comprises the following steps: a) adding an oxidation-type bactericide and an optional glutaraldehyde; b) adding a phosphorus free corrosion and scale inhibitor containing polyepoxysuccinic acid or polyaspartic acid, at least one organic carboxylic acid polymer, an optional copper corrosion inhibitor and an optional zinc salt; and c) adding a quaternary ammonium salt-type cationic surfactant and an optional polysorbate nonionic surfactant. The method of the invention can carry out oil removal and microbial slime stripping on equipment in a circulating water system by one time, without mass pollution discharge.
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Description

technical field

[0001] The invention relates to a treatment method of circulating water, in particular to a treatment method of oil leakage circulating water. Background technique

[0002] Oil leakage often occurs in the circulating water system, and the oil leaked into the circulating water system generally contains light oil and wax oil. Light oil generally refers to hydrocarbon mixtures with a boiling point range of about 50-350°C. In the petroleum refining industry, it can refer to light distillates or light oil products. The former includes distillates such as gasoline (or naphtha), pyrolysis gasoline, kerosene (or jet fuel), light diesel oil (or atmospheric gas oil), top oil, raffinate, etc., which mainly come from crude oil distillation, catalytic cracking, Thermal cracking, petroleum coking, hydrocracking and catalytic reforming devices; the latter is the oil product obtained after light distillate oil is refined. Wax oil refers to heavy oil containing wax, which ...

Claims

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