Device and preparation method for hydrorefining basic oil from waste internal-combustion engine oil
A technology for waste internal combustion engine oil and hydrorefining, which is applied in the fields of hydrotreating process, petroleum industry, processing hydrocarbon oil, etc., can solve the problems of poor oil quality, environmental pollution, easy oxidation, etc., and achieves reasonable structural design and low cost. Effect
Active Publication Date: 2012-04-11
烟台东辉智能科技有限公司 +3
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Problems solved by technology
[0005] Development of waste internal combustion engine oil regeneration technology: Distillation-pickling-clay refining route and pickling-clay distillation and refining are the main regeneration processes. Distillation-brightening process is adopted, and sulfuric acid clay is still used for refining. Oxidation, the acid slag contains a large amount of benzopyrene substances, which seriously pollute the environment
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[0031] The specific embodiments of the present invention are given below with reference to the accompanying drawings, which are used to further describe the present invention.
[0032] A device for hydrotreating base oil of waste internal combustion engine oil according to this embodiment comprises a settling filter system 1 connected in sequence for filtering free water and mechanical impurities in waste internal combustion engine oil, for removing water, petroleum acid, colloid Pretreatment system for asphalt and low-carbon hydrogen components 2. Thin-film distiller for removing light components with a boiling point below 350°C 3. Used for separating fractions with a boiling point above 350°C from waste internal combustion engine oil and removing waste internal combustion engine oils Molecular distiller for heavy components in oil, hydrogenation reactor, stripper for further separation of vapor-liquid mixing in hydrogenation process 4, refiner for lubricating base oils with d...
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Abstract
The invention relates to a device and a preparation method for hydrorefining basic oil from waste internal-combustion engine oil, and belongs to the technical field of a waste internal-combustion engine oil regeneration process. The device comprises a sedimentation and filtration system, a pretreatment system, a film distiller, a molecular distiller, a hydrogenation reactor, a stripping tower and a rectifying tower, wherein the sedimentation and filtration system, the pretreatment system, the film distiller, the hydrogenation reactor, the molecular distiller, the hydrogenation reactor, the stripping tower and the rectifying tower are successively communicated; the sedimentation and filtration system is used for filtering free water and mechanical impurities in the waste sedimentation and filtration system; the pretreatment system is used for removing water, petroleum acid, colloid bitumen and low hydrocarbon components; the film distiller is used for removing light components with a boiling point of less than 350 DEG C; the molecular distiller is used for separating out fractions with a boiling point of more than 350 DEG C and heavy components in the waste internal-combustion engine oil; the stripping tower is used for mixing gas with liquid and further separating in a hydrogenating process; and the rectifying tower is used for fractioning lubricating oil basic oil with different viscosities. The device has reasonable structure design; the preparation method has environmentally-friendly process flow and no pollution; and by using the device and the preparation method, the waste internal-combustion engine oil can be refined into high-purity basic oil.
Description
technical field [0001] The invention relates to a device and a preparation method for refining base oil from waste internal combustion engine oil, and belongs to the technical field of regeneration technology of waste internal combustion engine oil. Background technique [0002] At present, lubricating oil is widely used in automobile transportation, manufacturing, mechanical processing, chemical industry, food and other industries. With the rapid development and growth of industry and national economy, its demand and consumption are also increasing. At present, the annual sales of domestic lubricating oil The volume has exceeded 10 million tons, and it is increasing at a rate of more than 10% every year, which means that at least 6 million tons of waste internal combustion engine oil are produced every year. With the development of the automobile industry, there is still a growing trend. Waste lubricating oil is mainly due to long-term use mixed with impurities and additive...
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IPC IPC(8): C10M175/02C10G67/14
Inventor 董海生吴斌王树波
Owner 烟台东辉智能科技有限公司