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Direct high-temperature coke gasification technology and gasifier employed by same

A high-temperature coke and gasifier technology, applied in the field of coal gasification, to reduce consumption, eliminate environmental pollution and energy waste

Inactive Publication Date: 2015-06-03
江西昌昱实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problem of energy saving and consumption reduction in effective gasification of high temperature coke

Method used

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  • Direct high-temperature coke gasification technology and gasifier employed by same
  • Direct high-temperature coke gasification technology and gasifier employed by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A high temperature coke direct gasification process, the steps of the process are as follows:

[0050] A) Use the high-temperature coke that has not been quenched to push the coke from the coke oven into the high-temperature coke tank, and send it to the lifting shaft by a tractor to be lifted to the top of the gasification furnace by the hoist;

[0051] B) The high-temperature coke tank is aligned with the high-temperature storage bin on the top of the furnace through the automatic alignment system and at the same time the discharge valve is opened to automatically drop high-temperature coke into the storage bin. The storage bin has the functions of storage, crushing and feeding at the same time, and can Realize automatic timing and quantitative addition of coke into the furnace;

[0052] C) The gasification agent oxygen used for gas production comes from the air separation process. The oxygen concentration is 40% according to the gas requirements of the subsequent pro...

Embodiment 2

[0056] A high temperature coke direct gasification process, the steps of the process are as follows:

[0057] A) Use the high-temperature coke that has not been quenched to push the coke from the coke oven into the high-temperature coke tank, and send it to the lifting shaft by a tractor to be lifted to the top of the gasification furnace by the hoist;

[0058] B) The high-temperature coke tank is aligned with the high-temperature storage bin on the top of the furnace through the automatic alignment system and at the same time the discharge valve is opened to automatically drop high-temperature coke into the storage bin. The storage bin has the functions of storage, crushing and feeding at the same time, and can Realize automatic timing and quantitative addition of coke into the furnace;

[0059] C) The gasification agent oxygen used for gas production comes from the air separation process. The oxygen concentration is 100% according to the gas requirements of the subsequent pr...

Embodiment 3

[0063] A high temperature coke direct gasification process, the steps of the process are as follows:

[0064] A) Use the high-temperature coke that has not been quenched to push the coke from the coke oven into the high-temperature coke tank, and send it to the lifting shaft by a tractor to be lifted to the top of the gasification furnace by the hoist;

[0065] B) The high-temperature coke tank is aligned with the high-temperature storage bin on the top of the furnace through the automatic alignment system and at the same time the discharge valve is opened to automatically drop high-temperature coke into the storage bin. The storage bin has the functions of storage, crushing and feeding at the same time, and can Realize automatic timing and quantitative addition of coke into the furnace;

[0066] C) The gasification agent oxygen used for gas production comes from the air separation process. The oxygen concentration is 80% according to the gas requirements of the subsequent pro...

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Abstract

The invention relates to a coke gasification technology and a gasifier employed by the same, and belongs to the technical field of coal gasification. High-temperature coke which is not quenched is fed into the gasifier to be subjected to a continuous redox reaction with a gasifying agent to produce water gas. The water gas is subjected to dust removal, sensible heat recycling, and cooling and washing by a high-efficiency dust remover, a heat recycling device and a purifying, washing and cooling tower respectively; and the clean water gas discharged out of the tower stays in a normal temperature state, can be conveyed to a follow-up sequence for production of various chemical products, and can also be used as industrial or domestic fuel gas. Practice proves that the coke gasification technology and the gasifier are economical and practical, the sensible heat of the high-temperature coke is effectively utilized, the quality of produced water gas is high, the gas yield of the single gasifier is high, the coke conversion rate is high, a little residue and coke residual are produced, the consumption of each material is low, environment and safety problems are avoided, equipment can operate stably for a long period, and the maintenance cost is low. Therefore, the coke gasification technology and the gasifier have remarkable economic and social benefits and wide application prospects.

Description

technical field [0001] The invention relates to a high-temperature coke direct gasification process and a gasification furnace used in the process, belonging to the technical field of coal gasification. Background technique [0002] At present, my country's coke production capacity is seriously overcapacitated, and coke enterprises are facing the problem of transformation and upgrading, and the first thing to be solved in order to develop downstream products of coke is the problem of coke gasification. Today, there are a large number of gasification technologies available at home and abroad, but none of them is specifically designed and developed for coke. At present, there are many gasification methods used in my country: dry powder pressurized gasification technology, coal water slurry pressurized gasification technology, Lurgi pressurized gasification technology and fixed bed intermittent atmospheric pressure gasification technology. Its main problems are: [0003] 1. B...

Claims

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Application Information

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IPC IPC(8): C10J3/16C10J3/20C10J3/30C10J3/76C10J3/34
CPCC10J3/16C10J3/00C10J3/20C10J3/30C10J3/34C10J3/72C10J3/76C10J3/84C10J2200/15C10J2300/0943C10J2300/0959C10J2300/0976C10J2300/1603C10J2300/1615
Inventor 郑西欧
Owner 江西昌昱实业有限公司
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