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Centralized processing technique for slop oil and acidic oil and processing system thereof

A centralized treatment and dirty oil technology, applied in the direction of neutralization of water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of difficult separation of oil, water and impurities without overcoming, Achieve the effects of low cost, simple process, and easy precipitation and separation

Inactive Publication Date: 2010-06-16
TANGSHAN HUAFENG INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although there are many patent applications for sludge and waste oil treatment, for example, the patent application numbers of 200510045971.9, 200710064407.0, 200610046997.x, and 200710011114.6 disclose methods for processing heavy oil sludge, tank cleaning sludge, and sewage treatment. , crude oil dehydration method, but there are no ideal treatment measures for dirty oil and sour oil, and the difficult problem of difficult separation of oil, water and impurities in dirty oil and sour oil has not been overcome

Method used

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  • Centralized processing technique for slop oil and acidic oil and processing system thereof
  • Centralized processing technique for slop oil and acidic oil and processing system thereof
  • Centralized processing technique for slop oil and acidic oil and processing system thereof

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Experimental program
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Effect test

Embodiment 1

[0059] According to the analysis of X-ray diffractometer, in the dirty oil and sour oil of Jidong Oilfield, the content of large particle impurities accounts for about 1%-2%, the content of fine sediment and other impurities accounts for about 15%-20%, and the content of water The content accounts for about 50%-60%, and the content of pure oil accounts for about 20-30%. After the "blue filter" initially filters out the larger sediment impurities in the dirty oil. The dirty oil that has been filtered out of large particles of impurities is pumped into the reaction kettle to decompose the sediment and oil and water. Inject compressed air from the coil with a pore diameter of 80 μm at the bottom of the reactor to generate fine bubbles with a diameter of about 80 μm for stirring, add 10% sodium carbonate solution to the dirty oil to stabilize the pH value of the dirty oil at 7.2, and then Add PR-02 type demulsifier with 0.6% volume of dirty oil in the kettle, then add flocculant ...

Embodiment 2

[0061] Dirty oil and sour oil are filtered through the "blue filter", and the filtered dirty oil is pumped into the reaction kettle through the "HF-B01-LCR Roots Oil Pump". When the dirty oil in the reaction kettle is heated to 60°C, Compressed air is injected into the coil with a pore diameter of 90 μm at the bottom of the kettle to generate fine bubbles with a diameter of about 90 μm for stirring, and 15% sodium carbonate solution is added to the dirty oil to stabilize the pH value of the dirty oil at 7.5, and then the kettle When the temperature of the dirty oil in the tank is increased to 80°C, add HF-01B type demulsifier with 0.7% volume of dirty oil in the tank, then add HF-02 flocculant with 0.4% volume of dirty oil in the tank to continue the reaction, and inject compressed air The duration of the process is 3.5 hours; stop injecting compressed air, and let it settle for 6 hours; input the purified oil in the upper layer of the reactor into the purified oil tank, the se...

Embodiment 3

[0067] The dirty oil is filtered through the "blue filter", and the filtered dirty oil is pumped into the reactor through the "HF-B01-LCR Roots Oil Pump". When the dirty oil in the reactor is heated to 50°C, The coil with a diameter of 60 μm is injected with compressed air to generate fine bubbles with a diameter of about 60 μm for stirring, and the HF-B02-IMC stainless steel magnetic drive pump is used to add 7% sodium carbonate solution to the dirty oil to make the pH of the dirty oil The value is stable at 6.0, and then when the temperature of the dirty oil in the kettle is increased to 70°C, then add HF-01B type demulsifier with 0.8% volume of dirty oil in the kettle, and then add HF-02 type with 0.2% volume of dirty oil in the kettle The flocculant continues to react, and the duration of injecting compressed air is 2.5 hours; stop injecting compressed air, and let it settle for 6 hours; input the purified oil in the upper layer of the reaction kettle into the purified oil ...

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Abstract

The invention discloses a dirty oil and acid oil centralized processing technology and a processing system thereof. The processing technology of the invention comprises the steps that firstly, filtration is performed; secondly, dirty oil and acid oil enter a reaction vessel, air flotation is performed, simultaneously sodium carbonate solution is added till the pH value is stabilized at 6.0 to 8.0,and then a demulsifying agent and a flocculating agent are mixed to continue the reaction; thirdly, the air flotation is stopped, and static settlement is performed; fourthly, ordinary pressure and pressure reduction dehydration is performed to the cleaned oil on the upper layer of the reaction vessel to obtain the crude oil meeting the state standard;, the sewage is drained through a vertical type natural oil removal tank and an oil-water filter after being filtered; the cement-based solidification is performed to the sludge, and calcium lime and aluminum oxide are flocculated to be solidified sludge. The dirty oil and acid oil centralized processing technology of the invention not only greatly reduces the pollution to the surrounding environment of the oil field and the corrosion to theequipment, but also changes waste into valuable, recovers a large amount of crude oil, improves the economic benefit of the oil field, and the solidified sludge can be directly applied to building.

Description

technical field [0001] The invention relates to an environmental protection treatment method, in particular to a waste oil and sour oil treatment process and a treatment system thereof. Background technique [0002] With the intensification of global environmental pollution and the deepening of people's understanding of environmental pollution, the cleaning treatment of oilfield waste oil acid oil has been paid more and more attention. A large amount of waste oil and acidified oil that are difficult to dehydrate will be produced at the same time of oil field exploitation. These non-standard oils with high water content, high impurities, and high viscosity were sold at low prices to local fire companies and refineries as fire oil and non-standard oil. , because they have not been decomposed and treated, the dirty oil and acidified oil contain a large number of chemical harmful components, which have caused very serious pollution and damage to the surrounding environment of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/00C02F1/52C02F1/66C02F1/40
Inventor 苑刚
Owner TANGSHAN HUAFENG INDAL
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