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Treatment method of high-temperature dry distillation raw gas

A high-temperature dry distillation and treatment method technology, which is applied in the removal of gas pollutants, gas dust removal, combustible gas purification, etc. High utilization rate and high quality effect

Active Publication Date: 2022-03-01
CHENGDU INTERMENT TECH
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a treatment method for high-temperature dry distillation of raw coal gas and a treatment system for high-temperature dry distillation of raw coal gas, so as to solve the technical problem in the prior art that high-temperature dry distillation of raw coal gas is not fully and efficiently processed

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  • Treatment method of high-temperature dry distillation raw gas

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no. 1 example

[0048] The first embodiment of the high-temperature dry distillation raw gas processing method of the present invention comprises the following steps:

[0049] (1) Pre-decomposing and pre-dusting the high-temperature dry distillation raw gas from the coal dry distillation rotary kiln or coal dry distillation furnace and the coal dry distillation raw material to output the first gas and solid; the coal dry distillation raw material is raw coal or oil shale;

[0050] (2) Drying the first gas and outputting the second gas;

[0051] (3) Carry out gas-solid separation treatment to the second gas, and output the third gas;

[0052] (4) Condensate the third gas to output coal tar and clean gas.

[0053] Wherein, in order to recover the heat of high-temperature dry distillation of raw coal gas as much as possible, but ensure that no coal tar is precipitated in the first gas, so that the oil and gas in the first gas are in a saturated state, the temperature of the first gas is 320-380°C...

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Abstract

The invention discloses a treatment method of high-temperature dry distillation raw gas, and solves the technical problem that the high-temperature dry distillation raw gas is not fully and efficiently treated in the prior art. The treatment method of the high-temperature dry distillation raw gas comprises the following steps: (1) carrying out pre-decomposition reaction and pre-dedusting on the raw gas from a coal dry distillation rotary kiln or a coal dry distillation furnace and a coal dry distillation raw material, and outputting first gas and solid; (2) drying the first gas, and outputting second gas; (3) carrying out gas-solid separation treatment on the second gas, and outputting third gas; and (4) condensing the third gas, and outputting coal tar and clean gas.

Description

technical field [0001] The invention relates to the technical field of processing high-temperature dry distillation raw coal gas output from a coal dry distillation rotary kiln or a coal dry distillation furnace, and specifically relates to a treatment method for high-temperature dry distillation raw coal gas. Background technique [0002] Coal dry distillation refers to the use of raw coal or oil shale as raw material, heating and decomposing in a coal dry distillation rotary kiln or coal dry distillation furnace under the condition of over-isolated air, to produce coke (or semi-coke), coal tar, crude benzene, gas, etc. product process. According to the difference in the final heating temperature, it can be divided into three types: 900-1100°C is high-temperature dry distillation, that is, coking; 700-900°C is medium-temperature dry distillation; 500-600°C is low-temperature dry distillation. [0003] High-temperature dry distillation of coal will generate high-temperature...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/02C10K1/04C10K1/00
CPCC10K1/02C10K1/026C10K1/024C10K1/002C10K1/04
Inventor 高麟任德忠吴志强
Owner CHENGDU INTERMENT TECH
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