Method and system for producing vehicle fuel from waste plastic

A technology for waste plastics and vehicle production, which is used in hydrocarbon oil treatment products, preparation of liquid hydrocarbon mixtures, and petroleum industry. High effect, good environmental benefit, high solvent recycling rate

Active Publication Date: 2021-12-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problems that the harmful elements Cl and Si impurities in the waste plastic pyrolysis oil obtained in the prior art are high in content, which leads to the easy corrosion of pipelines and equipment in the subsequent process and the easy deactivation of catalysts

Method used

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  • Method and system for producing vehicle fuel from waste plastic
  • Method and system for producing vehicle fuel from waste plastic
  • Method and system for producing vehicle fuel from waste plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0072] Waste plastic A is a commercially available mixture mixed according to the ratio of PE:PP:PS:PVC=10:5:1:1.5, wherein PE, PP, and PVC are in the form of film, and PS is in the form of foam. Crushed to <50mm, the broken particles of waste plastic A and solvent I preheated to 65°C enter the first decontamination unit of waste plastic, and are fully mixed and dissolved at 65°C. °C separated into a first solution and a first solid mixture.

Embodiment 1

[0073] The solvent I used in Example 1 is tetrahydrofuran, and the weight ratio of solvent I to waste plastic A is 10:1; the chlorine content in the obtained first solid mixture is 23 μg / g.

Embodiment 2

[0074] The solvent I used in Example 2 is methyl ethyl ketone, and the weight ratio of solvent I to waste plastic A is 10:1; the chlorine content in the obtained first solid mixture is 25 μg / g.

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Abstract

The invention relates to a method and system for producing vehicle fuel from waste plastic. The method comprises the steps that waste plastic sequentially passes through a first waste plastic impurity removal unit and a second waste plastic impurity removal unit for impurity removal reaction to obtain a second solution low in chlorine content and silicon content; and the second solution with low impurity content is fed into a catalytic cracking unit for catalytic cracking reaction to obtain vehicle fuel. The method is beneficial to solving the problem of white pollution, and the prepared vehicle fuel has good environmental benefits, social benefits and economic benefits.

Description

technical field [0001] The invention relates to the technical field of solid waste plastics treatment, in particular to a method and system for preparing vehicle fuel from waste plastics. Background technique [0002] According to statistics, the total amount of waste plastics in my country is about 1 billion tons and is gradually increasing at a rate of 40 million tons per year. It is estimated that by 2035, the world will generate about 8 billion tons of waste plastics. Waste plastics account for more than 15% of urban domestic waste. Taking Beijing Liulitun landfill as an example, it covers an area of ​​27 hectares, and the existing landfill volume is about 12 million tons, of which about 2 million tons of waste plastics. This not only causes serious environmental pollution, but even affects the ecological balance in the natural environment; it is also a serious waste of petrochemical resources. The existing waste plastics treatment technologies mainly include landfill,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00C10G1/04
CPCC10G1/006C10G1/04C10G2400/02C10G2400/04
Inventor 李明丰邹亮王志强李红伟魏晓丽夏国富徐润王树青侯吉礼王鹏飞
Owner CHINA PETROLEUM & CHEM CORP
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