Process of flowing multistage chemical thermo-dynamic for cleaning mud oil-containing

A technology for hot washing and cleaning area, applied in chemical instruments and methods, separation methods, sludge treatment, etc., can solve problems such as increasing power consumption, reducing stability, and increasing costs, reducing power consumption and improving adaptability. , the effect of easy material balance

Inactive Publication Date: 2006-01-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process in foreign countries is only used to treat landed oil sludge and oily sediment, and the selection of centrifugal equipment not only increases the cost of treatment, increases power consumption, but also reduces the stability of equipment operation

Method used

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  • Process of flowing multistage chemical thermo-dynamic for cleaning mud oil-containing
  • Process of flowing multistage chemical thermo-dynamic for cleaning mud oil-containing
  • Process of flowing multistage chemical thermo-dynamic for cleaning mud oil-containing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Floor sludge cleaning experiment

[0026] The ground oil sludge is taken from an oil refinery in Liaohe Oilfield. It is a black solid at room temperature and contains oil, sediment, water, etc.

[0027] Take 100g of ground oil sludge with a moisture content of 4.8%, an oil content of 15.22%, and an ash content of 79.98% (average value) in a 2-liter beaker, add 500ml of warm water, adjust the pH value to 9, stir vigorously for 10 minutes, and place it in a water bath at 60°C for 30 minutes , put it into a thermal insulation bag, scrape off the upper layer of slick oil, adjust the pH value of the water phase to 7, add 100g / l AEO-94ml to it, stir for 5 minutes, and then let it stand for 30 minutes. Scrape out the upper layer of slick oil and measure its moisture and impurity content after the first scraping is mixed, and measure the oil content of the bottom mud.

[0028] Upper oil slick: 21.55g, moisture content 38.12%, oil content 61.07%, impurity 0.81%

[0029] Bottom...

Embodiment 2

[0032] Scum cleaning experiment

[0033] The scum comes from a waste oil recycling company, which is the scum produced in the process of oil refining and sewage purification. It is liquid at room temperature, containing petroleum, emulsion, water and a small amount of chemical substances.

[0034] Take 100g of scum with a moisture content of 70.04%, oil content of 8.29%, and ash content of 21.67% (average value) in a 2-liter beaker, add 300ml of warm water, adjust the pH value to 5, add demulsifier DL-100 200ppm, stir vigorously for 5 minutes, and then place After standing in a water bath at 60°C for 30 minutes, put it in a heat preservation bag, scrape off the upper layer of slick oil and measure its impurity content, adjust the pH value of the water phase=7, add 10g / L polyiron 5ml, 1g / L CPAM (molecular weight 6 million) 2ml, stirred for 5 minutes and then allowed to stand for 30 minutes. Scrape out the upper layer of slick oil to measure its impurity content, and measure th...

Embodiment 3

[0039] Tank Bottom Mud Cleaning Experiment

[0040] The tank bottom sludge comes from the oil garbage cleaned from the bottom of the ship bilge and oil storage tank by a waste oil recycling company. It is dark brown semi-solid at room temperature, containing oil, sand, rust, water and impurities.

[0041] Take 100g tank bottom mud with moisture content of 7.70%, oil content of 78.75%, ash content of 13.55% (average value) in a 2-liter beaker, add 800ml of warm water, add demulsifier DL-4020 100ppm, adjust the pH value to 11, stir vigorously for 5 minutes and place After standing in a water bath at 60°C for 30 minutes, put it into a thermal insulation bag, scrape off the upper layer of slick oil and measure its impurity content, adjust the pH value of the water phase to 7, add 100g / L AEO-9 1ml to it, stir for 5 minutes and then let it stand. Set for 30min. Scrape out the upper layer of slick oil to measure its impurity content, and measure the oil content of the bottom mud. ...

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Abstract

A flowing-type multi-stage chemicothermal method for reclaiming the oily sludge includes such steps as pre-treating by flushing the oily sludge with high-pressure circulating hot water to fluidize it, washing in the serially connected multiple washing pools containing different chemicals, and water treating to recover crude oil.

Description

technical field [0001] The invention relates to a comprehensive treatment process aimed at crude oil recovery and environmental protection of oily sludge. Background technique [0002] Oil storage and transportation systems in oil fields and petroleum refineries often produce oily sludge, tank bottom sludge, and oily "three muds" in refineries (grease trap bottom sludge, dissolved air flotation scum, and accidental leaked dirty oil), etc. They are collectively referred to as oily sludge. The benzene series, phenols, anthracene and other substances contained in these sludges have foul smell and toxicity. If they are directly discharged into the natural environment, they will cause great pollution to the surrounding soil, water bodies and vegetation, and also waste a lot of waste. Oil resources. Therefore, no matter from the perspective of environmental protection or energy recovery, oily sludge must be treated. However, due to the special nature of oily sludge, its proper ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F1/24C02F1/40C02F1/52
Inventor 王栋林海英曾宏德
Owner DALIAN UNIV OF TECH
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