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Catalyst for cracking waste plastics to generate fuel

A catalyst and waste plastic technology, applied in molecular sieve catalysts, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., which can solve the problem of not meeting the standard of fuel oil, single catalyst function and low catalyst activity and other problems, to achieve the effect of short reaction time, excellent catalytic cracking function, and high catalytic activity

Inactive Publication Date: 2003-12-24
NAT POLYMER MATERIALS IND INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The activity of the catalyst is low, the reaction time is long, the reaction temperature is high, and the oil quality is not high and the yield is low
[0007] 2. The catalyst has a single function and only has the function of catalytic cracking. When processing waste plastics with complex components and containing halogens, not only will hydrogen halide gas be released during the cracking process, which will corrode the equipment; the oil produced by the cracking will also contain more Organic halogen substances, not up to the standard of fuel oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of catalyst DeLaZSM-5: Add 10 parts of 0.8M Na in 10 parts of HZSM-5 zeolite molecular sieve 2 CO 3 Solution, reacted at 80°C for 4 hours; after the reaction, let it stand and pour off the supernatant, and then add 10 parts of 0.8M Na 2 CO 3 Solution, react at 80°C for 4 hours, filter, wash with 100 parts of deionized water, and dry at 120°C for 12 hours; then add 10 parts of deionized water to the dried solid, react at 80°C for 2 hours, filter, Wash with 100 parts of deionized water, dry at 120°C for 12 hours, and activate at 360°C for 24 hours to obtain DeZSM-5. The prepared DeZSM-5 was treated with 10 parts of 0.8M LaCl 3 Ion exchange was performed at 100°C for 30 minutes with 2450 MHz microwave irradiation. Wash with boiling water to the washing liquid La 3+ The detection was zero, then dried at 120°C for 12 hours, and then activated at 600°C for 5 hours to obtain DeLaZSM-5.

[0023] (2) Waste plastic cracking oil production process: After clea...

Embodiment 2

[0025] (1) Preparation of catalyst DeLaZSM-5: Add 500 parts of 2M Na in 10 parts of NaZSM-5 zeolite molecular sieve 2 CO 3 solution, and reacted at 120°C for 2 hours. After the reaction, let it stand and pour off the supernatant, then add 500 parts of 2M Na 2 CO 3Solution, react at 120°C for 2 hours, filter, wash with 1500 parts of deionized water, and dry at 120°C for 12 hours; then add 500 parts of deionized water to the dried solid, react at 120°C for 2 hours, filter, Wash with 1500 parts of deionized water, dry at 120°C for 12 hours, and activate at 450°C for 10 hours to obtain DeZSM-5; prepare DeZSM-5 with 50 parts of 2M LaCl 3 Use 2450MHz microwave radiation to carry out ion exchange at 80°C for 5 minutes. After exchange, wash with boiling water until La 3+ The detection was zero, then dried at 120°C for 12 hours, and then activated at 300°C for 24 hours to obtain DeLaZSM-5.

[0026] (2) Waste plastic cracking oil production process: the present embodiment waste pla...

Embodiment 3

[0028] (1) Preparation of catalyst DeLaZSM-5: Add 1000 parts of 0.1M Na in 10 parts of NaZSM-5 zeolite molecular sieve 2 CO 3 solution and reacted at 40°C for 10 hours. After the reaction, let it stand and pour off the supernatant, and then add 1000 parts of 0.1M Na 2 CO 3 The solution was reacted at 40°C for 10 hours, filtered, washed with 3000 parts of deionized water, and dried at 120°C for 12 hours; then 1000 parts of deionized water was added to the dried solid, and reacted at 40°C for 10 hours, Filter, wash with 3000 parts of deionized water, dry at 120°C for 12 hours, and activate at 550°C for 8 hours to obtain DeZSM-5; use 100 parts of 0.1MLaCl 3 Perform ion exchange at 120°C with 2450MHz microwave radiation for 5 minutes, and wash with boiling water after exchange to La 3+ The detection was zero, then dried at 120°C for 12 hours, and then activated at 450°C for 15 hours to obtain DeLaZSM-5.

[0029] (2) Waste plastic cracking oil production process: the present e...

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Abstract

A catalyst for cracking the waste plastics to produce fuel oil (gasoline or diesel oil) may be the DeLaZSM-5 prepared by modifying zeolite molecular sieve ZSM-5 or the composite cracking catalyst containing at least two carried metallic oxides as active components. Its advantages are low cracking temp and high output rate and quality of fuel oil.

Description

1. Technical field [0001] The invention belongs to the technical field of catalysts, in particular to a catalyst for cracking waste plastics to produce fuel oil. 2. Background technology [0002] The disposal of waste plastics is not only the need of environmental protection, but also opens up an important way for the rational reuse of resources. At present, the treatment of waste plastics can be roughly divided into the following four methods: landfill method, incineration method, recycling method and chemical recycling method. Among them, the chemical recycling method uses light, heat, radiation, chemical reagents, etc. to degrade waste plastic polymers into monomers or oligomers. The degradation products are monomers that can be used to synthesize new polymers, and the degradation products are oligomers that can be used as oils, and the production process will not cause air pollution, so this technology is considered to be the most promising recycling method for waste pl...

Claims

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Application Information

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IPC IPC(8): B01J23/10B01J29/40C10G1/00
Inventor 王玉忠周茜唐超郑丽张玉华
Owner NAT POLYMER MATERIALS IND INNOVATION CENT CO LTD
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