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Method for preparing semicoke and tar by virtue of co-pyrolysis of organic waste and coal

A technology of organic waste and co-pyrolysis, which is used in coke ovens, educts, petroleum industry, etc., can solve the problems of low tar yield, low recycling efficiency of waste rubber and waste plastics, etc. Excessive cost, the effect of improving yield

Inactive Publication Date: 2014-12-24
陈卫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of low tar yield and low regeneration efficiency of waste rubber and waste plastics in the prior art, and provide a method that can significantly improve the tar yield and the regeneration efficiency of waste rubber and waste plastics. Co-pyrolysis of organic waste and coal to produce semi-coke and tar

Method used

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  • Method for preparing semicoke and tar by virtue of co-pyrolysis of organic waste and coal
  • Method for preparing semicoke and tar by virtue of co-pyrolysis of organic waste and coal

Examples

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Embodiment 1

[0082] see figure 1 , figure 2 , a method for producing semi-coke and tar by co-pyrolysis of organic waste and coal, the method adopts a vertical carbonization furnace 1 to produce semi-coke and tar, and the vertical carbonization furnace includes a feed section 11 connected sequentially from top to bottom , a drying section 12, a preheating section 13, a low-temperature dry distillation section 14, a medium-temperature dry distillation section 15, and a semi-coke cooling section 16. The feeding section 11 is sequentially provided with interconnected discharge drums 111 and auxiliary coal boxes from top to bottom 112, the drying section 12 is provided with an air-collecting array umbrella 121, and the area where the medium-temperature dry distillation section 15 and the semi-coke cooling section 16 are located is provided with a flower wall 17;

[0083] The method comprises the following steps in turn:

[0084] Drying and preheating: First, the material formed by mixing org...

Embodiment 2

[0089] Step is with embodiment 1, and difference is:

[0090] In the drying and preheating step, the organic waste is waste plastics, the length of which is 60-180mm, and its added weight is 12% of the added weight of coal.

Embodiment 3

[0092] Step is with embodiment 1, and difference is:

[0093] In the drying and preheating step, the organic waste is a mixture of waste tires and waste plastics, wherein the length of the waste tires is 170-190mm, and its added weight is 7% of the added weight of coal; the length of the waste plastics is 60-180mm , its added weight is 8% of coal added weight;

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Abstract

The invention provides a method for preparing semicoke and tar by virtue of co-pyrolysis of organic waste and coal. The method comprises the steps of firstly, mixing the organic waste with the coal to form a mixture and drying and preheating the mixture, secondly, orderly performing low-temperature carbonization at 450-650 DEG C and medium temperature carbonization at 650-800 DEG C on the preheated material to obtain low-volatile semicoke and gas, next, recovering the semicoke and the tar, and finally, purifying the gas. The method for preparing the semicoke and the tar by virtue of co-pyrolysis of the organic waste and the coal has the advantages that the tar yield, the resource utilization efficiency of waste rubber and waste plastics and the quality of the semicoke can be obviously improved, and the effects of economic efficiency, environmental friendliness and low production cost can be achieved, based on the principle that the pyrolysis final temperature of the waste rubber and the waste plastics is lower than that of the coal under the same working condition, so that the gas generated by the pyrolysis of the organic waste and the waste is recovered and purified together.

Description

technical field [0001] The invention belongs to the combined field of petrochemical industry and coal chemical industry, and specifically relates to a method for producing semi-coke and tar by co-pyrolysis of organic waste and coal, which is suitable for increasing the yield of tar, improving the quality of semi-coke, and solving the problem of organic waste Separate pyrolysis treatment needs to be equipped with gas purification facilities, resulting in high cost. Background technique [0002] On December 19, 2008, the Ministry of Industry and Information Technology of the People's Republic of China issued the "Access Conditions for the Coking Industry (Revised in 2008)" No. 15 [2008] of the Ministry of Industry and Information Technology of the People's Republic of China, and the semi-coke (blue coke) industry achieved standardized and large-scale development , and encourage the development of pulverized coal to produce semi-coke and tar hydrotreating. At present, my count...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/07
CPCY02P20/143
Inventor 陈伟
Owner 陈卫
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