Method and device for biomass compound gasification

A gasification device, biomass technology, applied in the direction of biofuels, special forms of dry distillation, petroleum industry, etc., can solve the problems of no integrated biomass composite gasification device, no creativity, etc., to achieve strong load adaptability and stable operation , The effect of strong applicability of raw materials

Inactive Publication Date: 2008-07-23
江苏中科龙城能源系统有限公司
View PDF4 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] It can be seen from the above that the current gasification process for removing tar in the furnace is mostly realized by connecting several reactors in series, and there is no integrat

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
  • Method and device for biomass compound gasification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The content of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0021]Please refer to Figure 1, a biomass composite gasification method, the biomass raw material is fed into the composite gasifier 1 from the feed port 7 located in the pyrolysis zone 2, and the pyrolysis reaction occurs at a temperature of 500-600°C. Biomass releases volatile gas and generates solid coke; large coke particles flow downward into the coke gasification zone 4 in the compound gasification furnace 1, and the primary gasification agent is added from the primary gasification agent input port 5, and the primary gasification agent Under the action of , a small part of the coke undergoes an oxidation reaction, making the temperature of the coke gasification zone reach above 1000 ° C, and most of the coke undergoes a gasification reaction to generate combustible gas; the high-temperature gas flowing upward from the coke g...

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 biomass complex gasification method and a device of the gasification. The thermal decomposition, the gasification, part of the oxidation process are combined in one reactor by the integrating the fluidized bed and the airflow bed. Firstly, the biomass is decomposed at 500 to 600 degrees C and generates hard coke; secondly, the hard coke with large grain sizes are partly oxidized and gasified in the hard coke gasifying section, which provides heat and generates combustible gas for the thermal decomposition section; thirdly, the reaction gases with small hard coke grains discharged from the thermal decomposition section and the catalyst fast flows upwards through the macromolecular gasifying section, and the reaction gas are partly oxidized because of the function of the secondary gasifying agent, the heavy tar component is forced simultaneously through thermal cracking reaction and catalytic cracking reaction with the catalyst at the temperature over 1000 degrees C and transformed to lightweight combustible gas; at last, the unreacted hard coke is sent back to the furnace through the gas-solid separation device and the solid recycling device. The biomass complex gasification method has the advantages of high gasification efficiency, low tar content, high control ability of the gas component, stable operation and easy enlargement.

Description

technical field [0001] The invention relates to the technical field of biomass gasification, in particular to an integrated biomass composite gasification method and device for removing tar in a furnace. Background technique [0002] Due to the increasing shortage of petroleum resources, environmental pollution and greenhouse effect problems are becoming more and more serious, it is gradually becoming a development trend to obtain high-grade liquid fuels and chemicals from abundant biomass agricultural and forestry waste resources (such as straw, etc.). attracted great attention. Biomass gasification technology can convert various waste biomass into high-grade gaseous fuels. It is the main core technology for producing liquid fuels and chemicals through thermochemical conversion, and for power generation, gas supply and heat supply. The market prospect of biomass-based liquid fuels and chemicals will ultimately depend on cost competitiveness, and an efficient and economical...

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): C10B53/02
CPCY02E50/14Y02E50/10
Inventor 吴创之阴秀丽周肇秋马隆龙蔡建渝
Owner 江苏中科龙城能源系统有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap