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Waste tyre cracking process and apparatus

A technology for waste tires and equipment, applied in the preparation of liquid hydrocarbon mixtures, the petroleum industry, fibrous fillers, etc., can solve the problems of multiple cracking process steps, low catalyst activity, and low production efficiency, and achieve the elimination of cutting processes and optimization Increase ratio, energy saving effect

Inactive Publication Date: 2007-12-19
任丽娟 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a waste tire pyrolysis method and its equipment in order to solve the problems of the existing waste tire pyrolysis process, such as many steps, high processing cost, low production efficiency, low catalyst activity and single function.

Method used

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  • Waste tyre cracking process and apparatus
  • Waste tyre cracking process and apparatus
  • Waste tyre cracking process and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: a. the tire with a weight of 275Kg is cleaned and removed; b. the whole tire and the heated nitrogen are sent into the feed bin together; c. the tire processed through the previous step is sent into the cracking bin, Add 1.375Kg activated clay catalyst at the same time, and heat and crack it for 15 minutes at a temperature of 280°C and a pressure of 0.01 MPa; The steel wire and carbon black are separated and the carbon black is packaged. At the same time, the cracked gas generated after cracking is sent to the condenser for condensation to obtain refined oil and fuel gas. Its generated products are as follows:

[0028] name

Embodiment 2

[0029]Embodiment 2: a. the tire with a weight of 200Kg is cleaned and removed; b. the whole tire and the heated nitrogen are sent into the feeding bin together; c. the tire processed through the previous step is sent into the cracking bin, At the same time, 4Kg of kaolin catalyst was added, and the temperature was 480° C. and the pressure was 0.04 MPa, and it was heated and cracked for 30 minutes;

[0030] d. Send the steel wire and carbon black solid matter produced after cracking into the discharge transition bin, then separate the steel wire and carbon black through magnetic separation and pack the carbon black, and send the cracked gas produced after cracking to into the condenser for condensation to obtain refined oil and fuel gas. Its generated products are as follows:

[0031] name

Embodiment 3

[0032] Embodiment 3: a. the tire with a weight of 300Kg is cleaned and removed; b. the whole tire and the heated nitrogen are sent into the feed bin together; c. the tire processed through the previous step is sent into the cracking bin, Add 1.5Kg kaolin catalyst and 1.5Kg activated clay catalyst at the same time, and heat cracking at a temperature of 450 ° C and a pressure of 0.03 MPa for 20 minutes; d. Send the steel wire and carbon black solid matter produced after cracking into the discharge transition bin Inside, the steel wire and carbon black are separated by magnetic separation and the carbon black is packaged. At the same time, the cracked gas generated after cracking is sent to the condenser for condensation to obtain refined oil and fuel gas. Its generated products are as follows:

[0033] name

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Abstract

The present invention relates to waste tyre treatment, and is especially waste tyre cracking process and apparatus. The waste tyre catalytically cracking process includes the steps of washing, depurating, preheating in a feeding bin with heated nitrogen, cracking in a cracking bin in the presence of catalyst in the amount of 0.5-2 wt% tyre, feeding the steel wire and carbon black produced through cracking into the discharging bin, and condensating cracked gas in the condensator. The present invention has low temperature catalytically cracking process, optimized tyre / catalyst weight ratio, maximized fuel oil output, low cost, nitrogen protection, continuous cracking and high safety.

Description

technical field [0001] The invention relates to a treatment method and equipment for waste tires, in particular to a cracking method and equipment for waste tires. Background technique [0002] With the rapid development of the modernization of the national economy and the continuous expansion of the transportation and automobile industries, the large output of waste tires has become a world-recognized harmful waste. At present, the treatment of waste tires can be roughly divided into the following four methods: landfill method, incineration method, recycling method and chemical recycling method. The chemical recycling method uses heat energy to crack waste tires. The cracking process is divided into thermal cracking and catalytic cracking. The products produced by pyrolysis of tires are very complex. Among the products, gas accounts for 14.3%, liquid accounts for 43%, carbon black accounts for 32%, and steel wire accounts for 10.7%. The gas components are mainly methane, et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/10C09C1/48
Inventor 任丽娟李大光温小兵
Owner 任丽娟
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