Method for treating light oil-leaking circulating water

A treatment method and technology for circulating water, applied in the directions of oxidized water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Adhesion, low blowdown, simple operation effect
CN102730863AActive Publication Date: 2012-10-17CHINA PETROLEUM & CHEM CORP +1
4 Cites 21 Cited by

Patent Information

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

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method for treating light oil-leaking circulating water, comprising the following steps of: a) adding an oxidation type bactericide; b) adding a scale and corrosion inhibitor which comprises at least an organophosphonate acid, at least an organic carboxylic acid polymer, an optional copper corrosion inhibitor and optional zinc salt; and c) adding at least a long-chain alkyl aryl sulfonate surfactant. The method provided by the invention can be used to remove oil and peel off microbial slime from equipment of the circulating water system at a time without large-scale pollution discharge.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

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

[0002] 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. When material leakage occurs, light oil is easy to emulsify with water and enter the circulating water system, providing sufficient nutrient source for the microorganisms in the system, so that the mi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More