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

A gasifier for co-production of methane and light tar

A light tar and gasifier technology, applied in the direction of granular/powdered fuel gasification, etc., can solve the problems of reducing the conversion rate of carbonaceous raw materials and the degree of pyrolysis, insufficient pyrolysis reaction, and low output of light tar , to increase contact time and contact surface area, improve gasification efficiency, and increase contact time

Active Publication Date: 2017-05-10
ENN SCI & TECH DEV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in actual production, the design of the pyrolysis section in the existing gasification furnace does not make full use of the characteristics of catalytic gasification and pyrolysis, so that the carbonaceous raw materials are not in effective contact with the gasification agent in the pyrolysis section, thereby reducing the The conversion rate and pyrolysis degree of carbonaceous raw materials are reduced, resulting in insufficient pyrolysis reaction, resulting in low yield of coal tar, especially light tar with high economic added value.

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
  • A gasifier for co-production of methane and light tar
  • A gasifier for co-production of methane and light tar
  • A gasifier for co-production of methane and light tar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Using the distributed plate fluidized bed gasifier of the present invention, the diameter ratio of the pyrolysis section Y to the gasification section W is 2, and the height ratio of the pyrolysis section Y to the gasification section W is 0.5. using as figure 2 As shown in the design of the Y distribution plate in the pyrolysis section, the angle of the Y distribution plate in the pyrolysis section is 45°; the opening rate of the Y distribution plate in the pyrolysis section is 0.4%, and the aperture is 1 mm. The catalytic gasification test was carried out using inferior lignite with a particle size of less than 2 mm, and the catalyst was potassium carbonate with a loading of 10 wt%. The pyrolysis fluidizing gas adopts the dry gas at the outlet of the gasifier, and the amount of the pyrolysis fluidizing gas is 7% of the outlet gas volume of the gasifier. The operating pressure of the gasifier was 3.0mpa. During the test, the temperature of each area was monitored and...

Embodiment 2

[0041] Using the distributed plate fluidized bed gasifier of the present invention, the diameter ratio of the pyrolysis section Y to the gasification section W is 2.3, and the height ratio of the pyrolysis section Y to the gasification section W is 0.4. using as image 3 In the design of the pyrolysis distribution plate shown, the angle of the Y distribution plate in the pyrolysis section is 40°; the opening rate of the Y distribution plate in the pyrolysis section is 0.52%, and the aperture is 0.8 mm. The catalytic gasification test was carried out using inferior bituminous coal with a particle size of less than 1 mm, the catalyst was potassium carbonate, and the loading amount was 10 wt%. The pyrolysis fluidizing gas adopts the dry gas from the gasifier outlet, and the pyrolysis fluidizing gas volume is 8% of the gasifier outlet gas volume. The operating pressure of the gasifier was 3.5mpa. During the test, the temperature of each area was monitored and the components of th...

Embodiment 3

[0049] Using the distributed plate fluidized bed gasifier of the present invention, the diameter ratio of the pyrolysis section Y to the gasification section W is 2.6, and the height ratio of the pyrolysis section Y to the gasification section W is 0.45. using as figure 2 In the design of the pyrolysis distribution plate shown, the angle of the Y distribution plate in the pyrolysis section is 55°; the opening rate of the Y distribution plate in the pyrolysis section is 0.4%, and the aperture is 1.5 mm. The catalytic gasification test was carried out using bituminous coal with a particle size of less than 1 mm, and the catalyst was potassium carbonate with a loading of 10 wt%. The pyrolysis fluidizing gas adopts the dry gas from the gasifier outlet, and the pyrolysis fluidizing gas volume is 8% of the gasifier outlet gas volume. The pressure was 3.0mpa. During the test, the temperature of each area was monitored and the components of the gas at the gasifier outlet were analyz...

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

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a gasifier for the co-production of methane and light tar, belonging to the field of coal catalytic gasification, capable of increasing the conversion rate and pyrolysis degree of carbonaceous raw materials on the premise of ensuring the methane output, thereby increasing the tar output , especially the production of light tar. The gasification furnace includes a pyrolysis section and a gasification section located below the pyrolysis section, the diameter of the pyrolysis section is larger than the diameter of the gasification section, and the upper part of the gasification section is nested in the The bottom of the pyrolysis section is connected to the inner wall of the pyrolysis section through an inverted conical pyrolysis section distribution plate, the upper part of the gasification section, the inverted conical pyrolysis section distribution plate and the pyrolysis section The inner wall of the bottom defines the gas chamber of the pyrolysis section. The invention can be used in the gasification process of co-producing methane and light tar.

Description

technical field [0001] The invention relates to the field of coal catalytic gasification, in particular to a gasifier for co-producing methane and light tar. Background technique [0002] Coal catalytic gasification technology is an important way of clean and efficient utilization of coal. Existing coal catalytic gasifiers include one-stage bed gasifiers, two-stage bed gasifiers and three-stage bed gasifiers. In the above-mentioned gasifiers, catalyst-loaded carbonaceous raw materials are usually used as raw materials. After the carbonaceous raw materials are upgraded in the pyrolysis section in the gasification furnace, they will be mixed with the gasification agent at a certain pressure and temperature in the gasification section. Under the action of the catalyst, the catalytic gasification reaction is carried out to obtain coal tar with high economic value while generating high-concentration methane. [0003] However, in actual production, the design of the pyrolysis se...

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 Patents(China)
IPC IPC(8): C10J3/56
Inventor 祖静茹李克忠高占朋
Owner ENN SCI & TECH DEV
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