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Coal carbonization technology

A technology of coal dry distillation and process, applied in the field of coal dry distillation process, can solve the problem that the cold flue gas is not fully utilized, achieve high dry distillation efficiency, and improve the effect of dry distillation efficiency

Inactive Publication Date: 2010-04-07
XILINHOT NAT ENERGY TECH +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention lies in the technical problem that the cold flue gas is not fully utilized in the existing coal carbonization process, and proposes a method that makes full use of the cold flue gas to cool the cooling layer, thereby improving the carbonization efficiency Coal dry distillation process

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Embodiment Construction

[0032] figure 2 Shows a specific implementation of the coal carbonization process of the present invention, an external combustion internal heating coal carbonization furnace applying the coal carbonization process of the present invention, which is sequentially from top to bottom: preheating section 1, drying section 2 , dry distillation section 3 and cooling section 4. The preheating section is arranged above the drying section, communicates with the drying section, and is used for preheating the raw coal; the drying section is used for drying the raw coal and obtaining cold flue gas at the same time; The dry distillation section 3 is used to carry out dry distillation treatment on the dried raw coal, which forms semi-coke after the dry distillation treatment; the cooling section 4 is used to cool the semi-coke produced therein by introducing the cold flue gas. Cooling treatment is carried out, and hot flue gas is obtained at the same time. The coal pyrolysis furnace is a...

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Abstract

The invention relates to a coal carbonization technology which comprises the following steps: a. drying raw material coal, and simultaneously obtaining cold smoke; b. carbonizing the coal after the drying process to form a carbonization product; and c. introducing the cold smoke generated in step a into the carbonization product generated after the carbonization, and cooling the carbonization product. The carbonization technology of the invention fully utilizes the cold smoke generated in the technical process to cool the carbonization product, thereby improving the overall carbonization efficiency; and a large amount of sulfur in the smoke is removed simultaneously when the carbonization product is cooled, thereby realizing the purposes of energy saving and environment protection.

Description

technical field [0001] The invention relates to a coal processing technology, in particular to a coal dry distillation technology. Background technique [0002] Dry distillation is a reaction process in which solid or organic matter is heated and decomposed in the absence of air. As a result of dry distillation, various gases, vapors and solid residues are produced. The mixture of gas and vapor is separated into gas and liquid after cooling. Dry distillation is a production process that humans have been familiar with and adopted for a long time, such as dry distillation of wood to make charcoal, and at the same time to obtain wood essence (methanol), wood acetic acid, etc. Dry distillation has always been an important method in the chemical processing of coal. After the coal is dry-distilled, the composition and aggregation state of the raw materials will change, and there are solid, gaseous and liquid substances in the product, and semi-coke, coal tar, crude ammonia and ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/00C10B39/00C10B57/10C10B57/08
Inventor 张毅刘振强朱永平程建龙苗文华张旭辉石长江白中华何鹏
Owner XILINHOT NAT ENERGY TECH
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