Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Entrained flow gasifier used for co-gasification of various forms of raw materials

A technology of gasification furnace and entrained bed, which is applied to the gasification of granular/powdered fuel, inorganic chemistry, and the manufacture of combustible gas, etc., and can solve the problem of single fixed raw material, etc.

Inactive Publication Date: 2011-09-21
EAST CHINA UNIV OF SCI & TECH
View PDF9 Cites 44 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the entrained bed gasifiers that have been commercially used at present are only suitable for the gasification of a single fixed raw material.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Entrained flow gasifier used for co-gasification of various forms of raw materials
  • Entrained flow gasifier used for co-gasification of various forms of raw materials
  • Entrained flow gasifier used for co-gasification of various forms of raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] With the technology of the present invention, for smaller gasifiers (equivalent to 50-1,000 tons of coal per day), a top-mounted single nozzle scheme is adopted to realize co-gasification of coal slurry and coke oven gas, and the gasifier is lined with refractory bricks. Shenhua coal and coke oven gas are gasified at a weight ratio of 50% each, the coal is transported with 65% coal-water slurry, and the coke oven gas is compressed and transported into the nozzle. The gasifier can process 400 tons of coal and 400 tons of coke oven gas per day. The compositions of raw coal and coke oven gas are listed in Table 1 and Table 2, respectively.

[0030]

[0031] When the gasification pressure is 6.5 MPa and the outlet temperature of the gasifier is 1350°C, the composition and main process indicators of the synthesis gas at the outlet of the gasifier are listed in Table 3 and Table 4.

[0032]

[0033]

[0034] The process nozzle is a three-channel nozzle, the cone a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an entrained flow gasifier used for the co-gasification of various forms of raw materials. The gasifier is formed by overlaying a gasification chamber and a cooling and washing chamber in a pressure-resisting shell. By adjusting a nozzle configuration scheme, the gasification of a single raw material and the co-gasification of gas-liquid-solid raw materials can be realized and the demands of different sizes of gasification systems can be satisfied. For a medium or small system, an overhead nozzle scheme is adopted for 50-1000 tons of coal per day. For a single serie of large-scale system, a multi-nozzle scheme is adopted for 1000-6000 tons of coal per day; the gasification furnace adopts impinging stream (oppesed multi-nozzle) and cross jet stream (overhead nozzle) to efficiently mix the raw materials and efficiently mix the raw materials and gasifying agents (oxygen and steam). The gasification furnace has excellent high flexibility, large load-adjusting range, high raw material utilization rate which is up to more than 98% and low specific oxygen consumption and specific raw material consumption, and the raw material is convenient to change.

Description

technical field [0001] The invention relates to an entrained-bed gasification furnace suitable for co-gasification of various forms of raw materials. Background technique [0002] As society progresses, fossil energy is becoming increasingly scarce. One of the current hot research directions in the field of energy research is to use gasification technology to convert fossil energy, such as coal, petroleum (residual oil, pitch, petroleum coke, etc.), natural gas (including oil field gas, coal bed methane); biomass energy, such as Straw, wood, etc.; waste energy, such as domestic garbage, sludge, excrement, tires, etc.; industrial waste gas, such as coke oven gas, refinery gas, blast furnace gas, etc., are processed into synthesis gas to achieve efficient and clean conversion of gasification raw materials, Then the synthesis gas is further processed into chemical fertilizers (ammonia, urea), methanol, dimethyl ether, motor fuel, or methanol is further processed into olefins (...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/50C10J3/72C10J3/84C01B3/34C01B3/36
Inventor 王辅臣代正华龚欣于广锁刘海峰王亦飞陈雪莉周志杰王兴军李伟锋梁钦锋郭晓镭许建良郭庆华刘霞
Owner EAST CHINA UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com