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Continuous cracking process of waste rubber and device thereof

A waste rubber and equipment technology, which is applied in the continuous cracking process of waste rubber and the equipment field for realizing the process, can solve the problems of low oil yield, increased production energy consumption, incomplete cracking, etc., and achieve low sulfur content and low oil content , reduce production energy consumption, and avoid internal coking effects

Active Publication Date: 2015-06-24
NIUTECH ENVIRONMENT TECHNOLOGY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although various processes and equipment related to the cracking of waste rubber have been reported, most of them use high cracking temperature in order to ensure that the cracking of waste rubber is sufficient, so that the final cracking produces more combustible gas and oil. less, resulting in low oil yield, although people have made a lot of efforts to improve the oil yield, but the effect is not satisfactory, because it is extremely difficult to increase the oil yield by 1% in the cracking process of waste rubber
In addition, high-temperature pyrolysis is also likely to cause coking inside the equipment, shorten the service life, and increase production energy consumption; if the pyrolysis temperature is lowered, the pyrolysis will not be complete, and the resulting carbon black will have more impurities attached to it, resulting in a decline in the quality of carbon black

Method used

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  • Continuous cracking process of waste rubber and device thereof
  • Continuous cracking process of waste rubber and device thereof
  • Continuous cracking process of waste rubber and device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A continuous cracking process for waste rubber, including the following process: the pretreated waste rubber block first undergoes primary cracking at 380°C, and the oil and gas produced after the primary cracking is discharged from the oil and gas outlet; the solid product obtained by the primary cracking is directly Enter the secondary cracking process for secondary cracking, the temperature of the secondary cracking is 450°C, the carbon black after the secondary cracking is discharged from the carbon black outlet, and the oil and gas generated by the secondary cracking are returned to the primary cracking chamber again, and the same level The oil and gas produced during the fracturing process are discharged together.

Embodiment 2

[0029] A continuous cracking process of waste rubber, including the following process: the pretreated waste rubber block first undergoes primary cracking at 410°C, and the oil and gas generated after the primary cracking is completed are discharged from the oil and gas outlet; the solid product obtained from the primary cracking is directly Enter the secondary cracking process for secondary cracking, and pass water vapor along the opposite direction of solid material movement during the secondary cracking process of solid products. The temperature of the secondary cracking is 500 ° C, and the carbon black after the secondary cracking The black outlet is discharged, and the oil and gas produced by the secondary cracking process, the gas generated by the reaction of water vapor and the sulfur in the carbon black, and the oil on the surface of the carbon black are all returned to the primary cracking chamber, and the oil and gas generated during the same primary cracking process ar...

Embodiment 3

[0031] A continuous cracking process for waste rubber, including the following process: the pretreated waste rubber block first undergoes primary cracking at 400°C, and the oil and gas generated after the primary cracking is completed are discharged from the oil and gas outlet; the solid product obtained by the primary cracking is directly Enter the secondary cracking process for secondary cracking, and pass water vapor along the opposite direction of solid material movement during the secondary cracking process of solid products. The temperature of the secondary cracking is 480 ° C. After the secondary cracking, the carbon black The black is discharged from the outlet, and the gas generated by the reaction of the oil gas and water vapor in the secondary cracking with the sulfur in the carbon black and the oil on the surface of the carbon black are all returned to the primary cracking chamber, and together with the cracked gas generated in the same primary cracking process disc...

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Abstract

Provided are a process for continuous cracking of waste rubber and equipment for realizing this process. Firstly, a waste-rubber block is subjected to primary cracking, and then the resulting solid product is directly subjected to secondary cracking, wherein cracking gases generated by the primary cracking and the secondary cracking are vented together. By using the two-stage continuous cracking process and equipment, not only is the yield of oil increased, but the quality of the carbon black is also improved significantly.

Description

[0001] technical field [0002] The invention relates to a waste rubber continuous cracking process and equipment for realizing the process. Background technique [0003] As we all know, waste rubber can be cracked to produce gasoline, diesel, carbon black and other products through further processing. Crises offer new avenues. At present, although various processes and equipment related to the cracking of waste rubber have been reported, most of them use high cracking temperature in order to ensure that the cracking of waste rubber is sufficient, so that the final cracking produces more combustible gas and oil. less, resulting in low oil yield, although people have made a lot of efforts to improve the oil yield, the effect is not satisfactory, because it is extremely difficult to increase the oil yield by 1% in the cracking process of waste rubber. In addition, high temperature pyrolysis is also likely to cause coking inside the equipment, shorten the service life, and incr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/10
CPCC10G1/10
Inventor 牛斌牛晓璐韩国乾王新明于爱丽
Owner NIUTECH ENVIRONMENT TECHNOLOGY CORPORATION
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