Coal gasification furnace for recycling industrial wastewater and gasification process

A technology for industrial wastewater and gasifier, which is applied in gasification process, petroleum industry, granular/powder fuel gasification, etc., can solve the problems of high cost, difficulty in wastewater treatment, and difficulty in achieving complete and complete treatment effect. Improved economy, reduced oxygen consumption, improved flexibility

Inactive Publication Date: 2018-07-27
北京瑞达科博技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of high difficulty, high cost and difficulty in achieving complete treatment effect of wastewater in chemical enterprises, the present invention provides a multi-burner top-spray water-cooled wall pulverized coal gasification equipment and gasification process that can recycle industrial wastewater

Method used

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  • Coal gasification furnace for recycling industrial wastewater and gasification process
  • Coal gasification furnace for recycling industrial wastewater and gasification process

Examples

Experimental program
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Embodiment

[0029] Example: A coal gasification synthetic ammonia urea project

[0030] A project with a daily output of 1,000 tons of synthetic ammonia intermediate products and 1,740 tons of urea requires coal gasification to produce 88,000 standard cubic meters of effective syngas (CO+H2) per hour.

[0031] The raw coal is a domestic commodity coal, with a moisture content of 14% on a received basis and an ash content of 7% on a dry basis. According to elemental analysis on an anhydrous and ash-free basis, it contains 80.72% carbon, 4.83% hydrogen, 1.03% nitrogen, and 0.45% sulfur. The base low calorific value is 25MJ / kg.

[0032] Set up a multi-burner cold-wall pulverized coal gasifier with a daily coal input capacity of 1,350 tons.

[0033] An average of 56 tons of raw coal is consumed per hour. The medium-pressure roller mill is used in the coal grinding unit to grind into pulverized coal, which is stored in a low-pressure coal bunker.

[0034] The pulverized coal enters the high-...

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Abstract

The invention discloses a coal gasification furnace for recycling industrial wastewater. The coal gasification furnace comprises a pressure-bearing furnace body, the top of the furnace body is provided with a top cover which is connected by a flange, a waste water burning nozzle and mounting openings of three coal burning nozzles surrounding the waste water burning nozzle are arranged in the center of the top cover, a reactor is isolated in the inner part of the furnace body by a water cooling wall, and a chilling water spraying ring is arranged below the slag opening in the bottom of the reactor, and a chilling chamber is provided with a descending pipe and an ascending sleeve pipe. The invention further relates to a gasification process using the gasification furnace.

Description

technical field [0001] The invention relates to a coal gasification device and a gasification method used in the field of coal chemical industry, in particular to a water-cooled wall type multi-burner top-spray powdered coal entrained flow bed coal gasification device and method that recycles and uses industrial waste water as a gasification agent. Background technique [0002] Coal gasification technology is widely used in production processes such as coal-to-hydrogen or coal-to-synthetic ammonia, synthetic methanol, synthetic oil and natural gas, and coal gasification combined cycle power generation. Coal gasifier is the core equipment of coal chemical plant. At present, there are many technologies, and fixed bed, fluidized bed, and entrained bed coal gasification technologies have been industrialized. [0003] The gasification temperature and gasification pressure of the entrained bed gasification furnace are high, the single furnace load is large, and the coal type is wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/76
CPCC10J3/48C10J3/76C10J2300/0906C10J2300/093C10J2300/0959C10J2300/0973
Inventor 王璟
Owner 北京瑞达科博技术有限公司
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