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

Fixed bed gasifier applied to waste gasification, process system and waste gasification method

A fixed-bed gasifier and process system technology, applied in the field of fixed-bed gasifiers, can solve the problems of low processing efficiency, high gas pollutant content, short life of plasma torch, etc., and achieve simple processing, high calorific value, fast The effect of less gray

Pending Publication Date: 2018-08-03
CHINA PETROCHEMICAL TECH CO LTD +1
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a fixed-bed gasification gasification system for waste gasification in order to overcome the shortcomings of the prior art, such as short life of the plasma torch, low processing efficiency, and high pollutant content in the resulting gas. Furnace, process system and waste gasification method

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
  • Fixed bed gasifier applied to waste gasification, process system and waste gasification method
  • Fixed bed gasifier applied to waste gasification, process system and waste gasification method
  • Fixed bed gasifier applied to waste gasification, process system and waste gasification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] In this embodiment, the garbage used is medical waste, and its composition analysis is shown in the following table:

[0063] Table 1

[0064]

[0065]

[0066] Taking the daily treatment scale of 100 tons of medical waste as an example, its composition is shown in Table 1, and the dry basis calorific value is about 21.9MJ / kg. The gasification agent is 50% oxygen-rich. The pressure of the gasification reaction is 0.1MPa, the temperature of the gasification reaction is 1100°C, and the ratio of the amount of gasification agent introduced from the furnace bottom to the furnace body is 2:1.

[0067] The outlet synthesis gas temperature is 1000℃, and the gas output is about 5.5t / h, of which CO and H 2 The total content is 42%, there is no tar, SO in the whole process 2 , NOx, dioxins and other pollutants, the carbon content in the ash is less than 3%, the ash is stable in nature, and the pollutants such as heavy metals are below the requirements of the national standard, and there...

Embodiment 2

[0069] In this embodiment, the garbage is sludge, and its composition analysis is shown in the following table:

[0070] Table 2

[0071]

[0072] Taking the daily processing scale of 1,000 tons of sludge as an example, its composition is shown in Table 2, and the dry basis calorific value is about 15.6MJ / kg. The gasification agent is air. The pressure of the gasification reaction is 10MPa, and the temperature of the gasification reaction is 850°C. The ratio of the amount of gasification agent introduced from the furnace bottom to the furnace body is 3:1.

[0073] The outlet synthesis gas temperature is 800℃, and the gas output is about 15t / h, of which CO and H 2 The total content of 20%, there is no tar, SO in the whole process 2 , NOx, dioxins and other pollutants, the carbon content in the ash is less than 5%, the ash is stable, and the pollutants such as heavy metals are lower than the national standard, and there is no risk of leaching.

Embodiment 3

[0075] In this embodiment, the garbage is biomass (water hyacinth), and its component analysis is shown in the following table:

[0076] table 3

[0077]

[0078] Taking the daily processing scale of 100 tons of water hyacinth as an example, its composition is shown in Table 3, and the dry basis calorific value is about 12.7MJ / kg. The gasification agent is 30% oxygen-rich, and 35% coal is added as fuel. The pressure of the gasification reaction is 1MPa, the temperature of the gasification reaction is 1000°C, and the ratio of the amount of gasification agent introduced from the furnace bottom to the furnace body is 2:1.

[0079] The outlet synthesis gas temperature is 950℃, and the gas output is about 6.2t / h, of which CO and H 2 The total content is 36%, there is no tar, SO in the whole process 2 , NOx, dioxins and other pollutants, the carbon content in the ash is less than 3%, the ash is stable in nature, and the pollutants such as heavy metals are below the requirements of the nat...

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 discloses a fixed bed gasifier applied to waste gasification, a process system and a waste gasification method. The fixed bed gasifier applied to waste gasification comprises a furnace body, wherein the upper part of the furnace body is provided with a feeding hole; the lower part of the furnace body is provided with at least one row of gasifying agent nozzles; the gasifying agent nozzles in each row are distributed oppositely and uniformly; the side wall of the furnace body is provided with a first fuel gas outlet; the distance between the center line of the first fuel gas outlet and the bottom surface of the furnace body is 1 / 2 to 5 / 6 of the height of the furnace body; the first fuel gas outlet is communicated with a fuel gas pipeline; one end, far away from the first fuelgas outlet, of the fuel gas pipeline is taken as a second fuel gas outlet; the fuel gas pipeline is provided with at least one row of plasma torches; the plasma torches are arranged oppositely and uniformly. According to the fixed bed gasifier applied to waste gasification, the plasma torches are integrated on the upper part of the gasifier, so that the conditions of the positions where the plasmatorches are positioned are milder, and the service life of the gasifier can be prolonged. By adopting the waste gasification method, the treatment efficiency can be increased greatly, and pollutant-free fuel gas can be obtained.

Description

Technical field [0001] The invention relates to a fixed-bed gasification furnace for garbage gasification, a process system and a garbage gasification method. Background technique [0002] Garbage is a solid waste produced in life and production. Its discharge is large, its composition is complex, and it pollutes the environment. The widely used garbage disposal methods today include: landfill, composting, incineration and gasification. [0003] The landfill method occupies a large amount of land, and there is a hidden danger of polluting groundwater. Many developed countries have explicitly prohibited landfilling of garbage. [0004] The composting method takes a long time, the organic matter is not completely degraded, and the residues and heavy metals will still cause pollution. [0005] The incineration method is the current mainstream waste treatment method. Its advantage is that it is thoroughly and quickly treated and realizes the recycling of waste. However, the biggest disad...

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
IPC IPC(8): C10J3/20
CPCC10J3/20C10J2300/0976C10J2300/0959C10J2300/0956C10J2300/0946
Inventor 布志捷赵辉刘方涛李伟锋宁晓燕刘海峰徐浩许建良夏磊龚欣丁波王辅臣官健于广锁王亦飞梁钦锋代正华陈雪莉郭晓镭王兴军郭庆华刘霞陆海峰龚岩沈中杰王立赵丽丽
Owner CHINA PETROCHEMICAL TECH CO LTD
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