Method and apparatus for treating oil-containing water-containing material

A technology for substances and liquid substances, applied in the field of separation of mixtures, can solve the problems of complicated and uneconomical extraction of petroleum or asphalt, and achieve the effects of reducing the risk of clogging pipelines and subsequent steps, reducing processing costs, and reducing anti-corrosion requirements.

Pending Publication Date: 2019-11-01
北京中科环通工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Oil sand is also a substance containing oil and water. It is composed of debris or rocks on the surface of the earth's crust mixed with water and oil contained in it. The process of extracting oil or bitumen from oil sand is mostly complicated and uneconomical.

Method used

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  • Method and apparatus for treating oil-containing water-containing material
  • Method and apparatus for treating oil-containing water-containing material
  • Method and apparatus for treating oil-containing water-containing material

Examples

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example 1

[0094] A small device with a processing capacity of 100 g per batch of samples was used to treat the scum and sludge with triethylamine as a solvent. The water content, oil content and ash content of the scum and sludge are shown in Table 1. Among them, ash refers to the inorganic matter in the sample except water.

[0095] In a mixer with stirring function, under normal pressure and 30° C., 100 g of scum oil sludge and 200 g of triethylamine were added and stirred for 5 minutes for mixing. Then, the mixture in the mixer is drained into the filter for filtration, the filter cloth has a pore size of 5 microns, pressurized to 5 bar with compressed air or compressed nitrogen, collects the separated solid on the filter cloth, and filters out, containing The liquid substances of triethylamine, water and oil are introduced into the liquid-liquid separator. In the liquid-liquid separator, maintain normal pressure, raise the temperature of the mixture of triethylamine, water and oil ...

example 2

[0100] Firstly, the scum and sludge are pretreated and dehydrated. The pre-dehydration is dehydrated by pressure filtration, and the filter cloth with a pore size of 5 microns is used under 4 standard atmospheric pressures. The filtered water phase is clear and transparent, and no oil components and ash are detected. . The scum and oil sludge after pre-dehydration is relatively dry, and the reduction is over 90%. The water content, oil content and ash content of the scum oil sludge after pre-dehydration are shown in Table 2.

[0101] A small device with a processing capacity of 100 g per batch of samples is used to treat the pre-dehydrated scum and oil sludge with triethylamine as a solvent.

[0102] In a mixer with stirring function, under normal pressure and 30° C., 100 g of pre-dehydrated scum oil sludge and 200 g of triethylamine were added and stirred for 5 minutes for mixing. Next, the mixture in the mixer is drained into the filter for filtration, the filter cloth has...

example 3

[0107] A small device with a processing capacity of 100 g per batch of samples was used to treat the tank bottom sludge with triethylamine as a solvent. The water content, oil content and ash content of the tank bottom sludge are shown in Table 3.

[0108] In a mixer with stirring function, under normal pressure and 30° C., 100 g of tank bottom sludge and 500 g of triethylamine were added and stirred for 5 minutes for mixing. Then, the mixture in the mixer is drained into the filter for filtration, the filter cloth has a pore size of 50 microns, pressurized to 5 bar with compressed air or compressed nitrogen, collects the separated solid on the filter cloth, and the filtered, containing The liquid substances of triethylamine, water and oil are introduced into the liquid-liquid separator. In the liquid-liquid separator, maintain normal pressure, raise the temperature of the mixture of triethylamine, water and oil to 80°C, keep it stable for about 10 minutes, and divide it into ...

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Abstract

A method for treating an oil-containing water-containing material includes mixing the oil-containing water-containing material with a solvent at a first temperature to obtain a mixture containing a solid material and a liquid material; subjecting the mixture to a first time of separation to obtain the solid material and the liquid material; subjecting the obtained liquid material to a second timeof separation at a second temperature to obtain a water phase and an organic phase; and subjecting the obtained organic phase to a third time of separation to obtain the separated solvent and separated oil. The intersolubility between the solvent and water at the first temperature is higher than that at the second temperature so that water separation and recovery in the method do not undergo phaseconversion, but are achieved through liquid-liquid separation, thus effectively reducing energy consumption. The invention further relates to a corresponding apparatus.

Description

technical field [0001] The invention relates to the technical field of separation of mixtures, in particular to a method and device for treating oil-containing and water-containing substances by using a solvent. Background technique [0002] Oily sludge generated during crude oil extraction, storage, transportation, and processing, including drilling cuttings, water-based mud, oil-based mud, surface oil spills, landed sludge, oilfield produced water, tank bottom sludge, tank cleaning sludge, "Three muds" in refineries, oil-contaminated soil, etc., are mixed with solids, oil, and water, and the composition is complex. Depending on the source of oily sludge, the solid content, oil content, water content, and viscosity vary greatly, making it difficult to handle , accumulated for a long time, polluting the surrounding soil, water and air, endangering the survival of animals, plants and human beings. Commonly used methods for treating oily sludge include bioremediation, inciner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/122C02F11/127C02F11/13B01D36/04C02F101/32C02F11/147
CPCC02F11/00C02F11/122C02F11/127B01D36/045C02F2101/32C02F11/147B01D36/04C02F11/13B01D11/00
Inventor 张卫华夏激扬刘春杰贺璐陈锐周卫静
Owner 北京中科环通工程科技有限公司
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