Process for separating treating mud containing oil

A technology for separation and treatment of sludge, applied in separation methods, liquid separation, sludge treatment and other directions, can solve the problems of complex equipment, difficult to use, high energy consumption, etc., and achieve simple dosing, short time and low operating costs. Effect

Inactive Publication Date: 2006-01-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The process and equipment are complicated, con

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Separating agent A preparation

[0019] Take 40 grams of concentrated sulfuric acid, add it to 59 grams of water, and then add 1 gram of sodium sulfate to make a separating agent A. The content of sulfuric acid in the separating agent A is 40%, the content of sodium sulfate is 1%, and the rest is water.

Embodiment 2

[0021] Separating agent B preparation

[0022] Sodium dodecylbenzenesulfonate and ammonium carbonate were used to replace the sodium sulfate in Example 1 to prepare separating agent B. The sodium dodecylbenzenesulfonate content in the separating agent B is 0.75%, the ammonium carbonate content is 0.25%, and the rest is water.

Embodiment 3

[0024] centrifugation

[0025] Add 100ml of water and 0.5ml of separating agent A to 50g of oil sludge, stir evenly and then centrifuge (2500 rpm) for 30 minutes. After centrifugation, there is a layer of oil floating on the upper layer, but the mud in the lower layer also contains more oil, and the effect is not very satisfactory. Treat it again, the oil layer is reduced, but there is still oil in the mud.

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Abstract

A process for reclaiming the oily sludge includes such steps as proportionally mixing it with water and separating agent prepared proportionally from sulfuric acid, demulsifier and water, stirring at 70-95 deg. C, laying aside to form oil, water and mud phases, and conventional separation.

Description

technical field [0001] The invention relates to industrial waste treatment, in particular to a method (comprehensive process) for separating (using separation technology) and treating oily sludge. Background technique [0002] In the process of oil production, a large amount of sludge on the well site and tank bottom is generated, which not only causes the loss of crude oil, but also pollutes the environment. It is necessary to pay a large amount of pollution compensation every year, which increases the cost of oilfield development. The treatment of oily sludge is a problem that plagues the oil extraction industry, and this problem is a major concern of all oil fields. [0003] Because the composition of oil sludge is very complex, the oil content is 10% to 30%, the moisture content is 10% to 30%, and the soil content is 30% to 60%. In addition, it also contains bricks, stones, branches and various surfaces added during crude oil extraction. active agent. Due to the comple...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F1/40
Inventor 杨旭杜远华孙承林史俊杰
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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