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A demulsifier for decomposing petroleum-based oil sludge and its application method

A technology of oil sludge and demulsifier, which is applied in the direction of dehydration/demulsification by chemical methods, which can solve the problems of difficult separation of chemical components and oil, and achieve the effects of increasing specific gravity difference, oil quality assurance, and good wetting ability

Active Publication Date: 2017-01-25
玉门市宝立源环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a demulsifier for decomposing petroleum-based oil sludge, so as to solve the technical problem that it is difficult to separate water, sediment, ash, and chemical components other than oil from oil in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take 100kg of petroleum-based oil sludge, the oil content in the petroleum-based oil sludge is 20kg, and the demulsifier for decomposing the petroleum-based oil sludge is composed of the following raw material proportions by weight: soda ash 0.9 kg; industrial salt 5 kg; 4 kg; sodium sulfonate 0.9 kg.

[0027] The use method of the demulsifier for decomposing petroleum-based oil sludge includes the following steps: measuring the oil content in 100kg of petroleum-based oil sludge in the storage equipment to be 20kg, and determining the amount of each component to be added in the demulsifier according to the oil content to be 0.9% of soda ash kg; industrial salt 5 kg; sulfite 4 kg; sodium sulfonate 0.9 kg; heating petroleum-based oil sludge to 60 degrees Celsius through a conical iron tank with steam coil heating or heat transfer oil heating, and adding soda ash 0.9 kg and use compressed air to stir for 30 minutes; add 5 kg of industrial salt and use compressed air to sti...

Embodiment 2

[0029] Take 100kg of petroleum-based oil sludge, the oil content in the petroleum-based oil sludge is 30kg, and the demulsifier for decomposing the petroleum-based oil sludge is composed of the following raw material proportions by weight: soda ash 0.9 kg; industrial salt 5 kg; 4 kg; sodium sulfonate 0.8 kg.

[0030] The use method of the demulsifier for decomposing petroleum-based oil sludge includes the following steps: measuring the oil content in 100kg of petroleum-based oil sludge in the storage equipment to be 30kg, and determining the amount of each component to be added in the demulsifier according to the oil content is soda ash 0.9 kg; industrial salt 5 kg; sulfite 4 kg; sodium sulfonate 0.8 kg; heating petroleum-based oil sludge to 70 degrees Celsius through a conical iron tank with steam coil heating or heat transfer oil heating, and adding soda ash 0.9 kg and use compressed air to stir for 30 minutes; add 5 kg of industrial salt and use compressed air to stir for 3...

Embodiment 3

[0032] Take 100kg of petroleum-based oil sludge, the oil content in the petroleum-based oil sludge is 40kg, and the demulsifier for decomposing the petroleum-based oil sludge is composed of the following raw material ratios by weight: soda ash 0.8 kg; industrial salt 4 kg; 4 kg; sodium sulfonate 0.6 kg.

[0033] The use method of the demulsifier for decomposing petroleum-based oil sludge includes the following steps: measuring the oil content in 100kg of petroleum-based oil sludge in the storage equipment to be 40kg, and determining the amount of each component to be added in the demulsifier according to the oil content is soda ash 0.8 kg; industrial salt 4 kg; alkaloid 4 kg; sodium sulfonate 0.6 kg; petroleum-based oil sludge was heated to 65 degrees Celsius by a conical iron tank with steam coil heating or heat transfer oil heating, and soda ash 0.8 kg and adopt compressed air to stir for 30 minutes; add 4 kg of industrial salt and adopt compressed air to stir for 30 minutes...

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Abstract

The invention discloses a demulsifier for decomposing petroleum-based oil slurry. The demulsifier for decomposing every 100 parts of petroleum-based oil slurry is prepared from the following raw materials in parts by weight: 0.4-0.9 part of sodium carbonate, 3-5 parts of industrial salt, 3-4 parts of sodium silicate and 0.4-0.9 part of sodium sulfonate. The using method of the demulsifier comprises the following steps: measuring the content of oil in the petroleum-based oil slurry in storage equipment, and determining the amount of each component to be added into the demulsifier according to the oil content; heating the petroleum-based oil slurry to 60-70 DEG C by heating equipment, sequentially adding sodium carbonate and stirring for 30 minutes, adding the industrial salt and stirring for 30 minutes, adding sodium silicate and stirring for 120 minutes, and adding sodium sulfonate and stirring for 60 minutes; standing and extracting supernatant oil; discharging ash component and water into a reservoir, standing and precipitating; and solidifying and embedding sands at the lowest layer. According to the method, sodium carbonate, industrial salt, sodium silicate and sodium sulfonate are synergized and matched, the proportion difference can be increased, the molecular chain can be opened, and water, ash component and sands can be easily separated from oil.

Description

technical field [0001] The invention belongs to the technical field of petroleum-based oil sludge treatment, and in particular relates to a demulsifier for decomposing petroleum-based oil sludge and a use method thereof. Background technique [0002] When the crude oil contains water and sediment, it is usually decomposed by heating with a traditional demulsifier, but some crude oils are difficult to be separated by traditional demulsifiers due to the long time and the complexity of the impurity content. The composition of sewage sludge from refineries is more complex. There are water, silt, activated clay, ash and chemical components other than oil. Various substances are tightly packed together and it is difficult to decompose them. In recent years, people use centrifugal force to separate water, mud and oil. Because the specific gravity of petroleum ash is similar to that of petroleum, oil and ash cannot be separated together, and ash is linked with chemical components ot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G33/04
CPCC10G33/04
Inventor 曾繁宝
Owner 玉门市宝立源环境科技有限公司
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