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Oil purification process

A purification process and technology for oil products, which are used in the petroleum industry, the preparation of refined hydrocarbon oils, and the preparation of liquid hydrocarbon mixtures

Active Publication Date: 2009-12-30
NIUTECH ENVIRONMENT TECHNOLOGY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at many problems existing in the existing oil purification process, the present invention provides an oil purification process, in particular to a purification process for cracking oil and waste oil of waste rubber and waste plastics under normal temperature and pressure. The process adopts Add the purifying agent containing water and flocculant and the raw oil into the emulsification tank, and mix the two to make the purifying agent emulsify the raw oil, and the obtained emulsified oil enters the separation equipment to separate oil and non-oily substances to obtain pure oil. During the whole treatment process, the method of using high-temperature distillation and strong acid and strong alkali to purify the oil in the prior art is changed, completely avoiding the oil loss caused by carbonization and coking of the oil due to high temperature and the generation of a large amount of acid residue and alkali residue. Produced, greatly improving the yield and safety performance of purified oil, while avoiding environmental pollution and reducing energy consumption

Method used

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Examples

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Embodiment 1

[0017] An oil purification process, the oil obtained by cracking rubber and the purification agent are placed in an emulsification tank, the purification agent is a mixture of water and kaolin, and its pH value is 6.5; the oil product and the purification agent are mixed by vibrating the emulsification tank Uniform, and then the emulsified mixture is mechanically separated to separate the purified oil from the non-oily substances.

Embodiment 2

[0019] An oil product purification process, the oil product obtained by cracking plastics and a purifying agent are placed in an emulsification tank, the purifying agent is a mixture of water and aluminum chloride, the pH value is 5.5, and the purifying agent is excessive;

[0020] A stirring device is installed in the emulsification tank, and the stirring device is turned on to mix and emulsify the oil product and the purifying agent evenly, and then mechanically separate the emulsified mixture to separate the purified oil from the non-oily substances. The obtained purified oil is adjusted and used as fuel, and the obtained non-oily substances enter the centrifuge for further separation, and the obtained liquid containing the purifying agent is desalinated and sent back to the original purifying agent storage tank for reuse, and the obtained remaining non-oily substances are identified as asphalt mixture of substances and other impurities.

Embodiment 3

[0022] An oil purification process, the recovered waste oil and purification agent are placed in an emulsification tank, the purification agent is a mixture of water, aluminum chloride, and activated carbon, the pH value is 4.5, and the purification agent is used in excess;

[0023] The emulsification tank is equipped with a stirring device, which is turned on to make the oil and the purifying agent mix and emulsify evenly, and then the emulsified mixture is centrifugally separated to separate the purified oil from the non-oily substances.

[0024] The obtained non-oil substances are centrifuged again, and the obtained liquid containing the purifying agent is desalinated and returned to the original purifying agent storage tank for reuse. The remaining non-oil substances obtained are identified as asphaltene and other impurities; the obtained purified oil is re-entered Emulsification tank, and add excess purifying agent, the purifying agent used is the same as that used in the ...

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Abstract

The invention relates to an oil purification process, in particular to a purification process aiming to pyrolysis oil of waste rubbers and waste plastics and waste oil under normal temperature and normal pressure. The process comprises the following steps: a purifying agent containing water, flocculant and raw oil are added into an emulsion tank; the purifying agent and the raw oil are mixed to cause the purifying agent to emulsify the raw oil; and obtained emulsified oil enters separation equipment to separate oil and non-oil substances, and pure oil is obtained. In the whole treating process, a method for oil purification by adopting high-temperature distillation, strong acid and strong alkali in the prior art is changed, thereby oil loss caused by oil carbonization and coking because of high temperature and generation of a large amount of acid residues and alkaline residues are avoided to improve the yield and the safety performance of purified oil, the environmental pollution is avoided at the same time, and the energy consumption is lowered.

Description

technical field [0001] The invention relates to an oil purification process, in particular to a purification process for pyrolysis oil and waste oil by using non-chemical means under normal temperature and pressure. Background technique [0002] At present, the annual output of various waste oils in my country is about 5 million tons, and a large amount of cracked oil products are produced at the same time. These waste or cracked oil products contain a large amount of solid impurities such as sulfides, chlorides and various impurities and asphalt. The existence of these impurities greatly reduces the quality of the oil, and at the same time affects the reprocessing of the oil, which greatly reduces the added value of the oil. If these substances are directly discharged or used without treatment, the waste gas produced It will also cause huge pollution to the environment. [0003] There are many ways in the existing waste oil treatment process, but the steps generally include:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G31/00C10G33/06
CPCC10G1/10C10G33/06C10G29/20
Inventor 牛斌
Owner NIUTECH ENVIRONMENT TECHNOLOGY CORPORATION
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