Oil refining procss from waste plastic and equipment

A technology for waste plastics and processes, which is used in the petroleum industry, plastic recycling, and preparation of liquid hydrocarbon mixtures, etc., can solve the problems of uneven heating of the catalytic cracking kettle body, unqualified products, and difficulty in removal, etc., to accelerate the melting and cracking. , Long service life of equipment, the effect of improving service life

Inactive Publication Date: 2004-04-28
吴克斌
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Problems solved by technology

[0003] The invention mainly solves the problem of uneven heating of the catalytic cracking kettle body in the process of refining waste plastics and equipment, resulting in dead coke that is difficult to remove, slow temperature rise, low yield and unqualified products, and provides a refining process and matching oil refining equipment

Method used

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  • Oil refining procss from waste plastic and equipment
  • Oil refining procss from waste plastic and equipment

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Embodiment Construction

[0013] The present invention is described in detail as follows in conjunction with accompanying drawing:

[0014] The waste plastic oil refining process of the present invention is as follows: first, waste oil with a total weight of 20% of waste plastic is added to the first-stage catalytic cracking kettle (2) through the waste oil inlet pipe (18), and then the waste plastic is crushed to 30 cm Below, the screw feeder (1) is added to the primary catalytic cracking tank (2) below 250°C for stirring; in the second step, the temperature in the primary catalytic cracking tank (2) is gradually increased from 250°C to 450°C , add a catalyzer by catalyst inlet pipe (18) in 15~20 minutes, after the HCL in the kettle is removed HCL by the chemical dechlorination agent in dechlorination tank (19), enter secondary catalytic cracking reactor (3 ); in the third step, the temperature rise in the secondary catalytic cracking reactor (3) is controlled between 380 DEG C and 400 DEG C, and the ...

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Abstract

The present invention discloses an oil refining process and equipment with waste plastic. Inside an industrial furnace painted with far infrared material to increase radiation heat by 20 %, there are the first or horizontal catalytic cracking reactor and hating space around it. The catalytically cracking produced oil gas is deeply cracked and recombined in the second catalytic cracking reactor and fractionized, condensed and oil-water separated. The separated gasoline and diesel oil are fed to storage tanks separately, heavy oil is returned to the furnace for refining for the second time, the light hydrocarbon gas is backed to the furnace for burning, and the coke slag produced in catalytic cracking is exhausted via spiral slag drainer. The present invention can change waste plastic into qualified gasoline or diesel oil product.

Description

technical field [0001] The present invention relates to a waste plastic recycling refining process method and its device, in particular to a waste plastic refining process and equipment Background technique [0002] The publication number is CN1392224A and the name is "waste plastic refining process and equipment". Stir in the pyrolysis reactor, and carry out thermal cracking at a high temperature above 400°C. The mixed oil gas produced by thermal cracking enters the catalytic tower for dechlorination and catalytic reforming, and then undergoes fractional distillation, condensation, and oil and gas separation to obtain finished gasoline and diesel oil. This patent for invention has been improved compared with other patents at present, but still has many defects and drawbacks. (1) Preheating and melting to remove impurities results in twice heating, high equipment investment and operation costs, and increased production costs; (2) Partial heating of the vertical catalytic cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/04C10G1/00
CPCY02P20/143Y02W30/62
Inventor 吴克斌王贵平董建华
Owner 吴克斌
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