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Device for preparing coal tar and coal gas by coupling semi-coke powder gasification and reformed gas pyrolysis and method using same

A technology for coal tar and reformed gas, which is applied in the field of coal chemical industry and achieves the effects of simple process, high yield and little environmental pollution

Active Publication Date: 2011-11-23
王树宽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned gas-oil cogeneration device coupled with fluidized bed pulverized coal gasification and solid heat carrier pyrolysis, and provide a coal pyrolysis-based, graded conversion, energy-saving, and water-saving A device for producing coal tar and gas by coupling semi-coke powder gasification and reformed gas pyrolysis with low environmental pollution

Method used

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  • Device for preparing coal tar and coal gas by coupling semi-coke powder gasification and reformed gas pyrolysis and method using same
  • Device for preparing coal tar and coal gas by coupling semi-coke powder gasification and reformed gas pyrolysis and method using same
  • Device for preparing coal tar and coal gas by coupling semi-coke powder gasification and reformed gas pyrolysis and method using same

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Effect test

Embodiment 2

[0050] In this embodiment, 16 rows of ceramic filter cores 2-14 are installed on the mounting plate 2-11, and each row is provided with 8 ceramic filter cores 2-14, and the ceramic filter cores 2-14 installed on each row and installed The number of rows installed on the plate 2-11 should be specifically determined according to the cross-sectional area in the filter housing 2-12, and each row of ceramic filter cores 2-14 is arranged equidistantly, and a row of ceramic filter cores 2-14 is adjacent to one row. Rows of ceramic filter cores 2-14 are arranged in a staggered manner, and the inner diameter of the ceramic filter cores 2-14 is 100mm. Each row of filter elements communicates with the blowback main pipe 2-21 through a quick-opening ball valve 2-22 installed on a blowback pipe 2-8. Other components and the coupling relationship of the components are the same as in Embodiment 1.

[0051] The method for preparing coal tar and coal gas using the apparatus of this embodiment...

Embodiment 3

[0053] In this embodiment, 12 rows of ceramic filter elements 2-14 are installed on the mounting plate 2-11, each row is provided with 12 ceramic filter elements 2-14, and the ceramic filter elements 2-14 installed on each row are connected with the The number of rows installed on the plate 2-11 should be specifically determined according to the cross-sectional area in the filter housing 2-12, and each row of ceramic filter cores 2-14 is arranged equidistantly, and a row of ceramic filter cores 2-14 is adjacent to one row. Rows of ceramic filter cores 2-14 are arranged in a staggered manner, and the inner diameter of the ceramic filter cores 2-14 is 60mm. Each row of filter elements communicates with the blowback main pipe 2-21 through a quick-opening ball valve 2-22 installed on a blowback pipe 2-8. Other components and the coupling relationship of the components are the same as in Embodiment 1.

[0054] The method for preparing coal tar and coal gas using the apparatus of t...

Embodiment 4

[0056] In the above embodiments 1-3, the rows of ceramic filter elements 2-14 installed on the mounting plate 2-11 are replaced with stainless steel filter elements. The other components and the coupling relationship of the components are the same as those in the corresponding embodiments.

[0057] The method for preparing coal tar and coal gas using the apparatus of this embodiment is the same as that of Embodiment 1.

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Abstract

The invention discloses a device for preparing coal tar and coal gas by coupling semi-coke powder gasification and reformed gas pyrolysis. In the device, a semi-coke heating furnace is communicated with the lower part of a gasification and pyrolysis reactor, the top of the semi-coke heating furnace is communicated with an afterheat boiler, and the lower part of the semi-coke heating furnace is communicated with the upper part and a high-temperature semi-coke heat exchanger through valves; the high-temperature semi-coke heat exchanger is communicated with a crusher which is communicated with the lower end and the upper part of the gasification and pyrolysis reactor; the upper end of the gasification and pyrolysis reactor is communicated with a raw coke oven gas filter; the raw coke oven gas filter is communicated with the afterheat boiler, a semi-coke outlet and the upper part of the gasification and pyrolysis reactor; one outlet of the afterheat boiler is communicated with lower end of the gasification and pyrolysis reactor; an oil and gas outlet is communicated with an oil and gas separator; and the oil and gas separator is communicated with the middle part of the gasification and pyrolysis reactor through a circulating fan. A method preparing coal tar and coal gas by using the device comprises the steps of pulverized coal preparation and drying, semi-coke gasification, methane reforming, coal pyrolysis, gas and solid separation and oil and gas separation. The device and the method, which are disclosed by the invention, can be used for preparing coal tar and coal gas.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry, and in particular relates to equipment and methods for producing coal tar and coal gas by coupling powder coke partial gasification and pyrolysis, carbon dioxide and water vapor, and methane reforming pyrolysis in pyrolysis cycle gas. Background technique [0002] Over the years, extensive research has been done on coal pyrolysis methods and devices for producing coal tar and gas. Coal gasification is widely used in industrial production as a relatively mature process. A large amount of heat is required in pyrolysis, and a large amount of heat is generated in gas production to be withdrawn. If coal gasification and pyrolysis are coupled, the thermal efficiency is high, and coal raw materials are saved, which reduces production costs. [0003] The American COED process adopts low-pressure, multi-stage, fluidized bed gas production and pyrolysis polygeneration. The gas produced by g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/66C10J3/60C10J3/62C10J3/84C10J3/86C10J3/72C10K1/00
CPCY02P20/129
Inventor 王树宽杨占彪
Owner 王树宽
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