Carbonization and gasification of biomass and power generation system

A biomass power generation and biomass technology, applied in the direction of gas turbine devices, biofuels, gaseous engine fuels, etc., can solve the problems of consistent fuel assurance, high collection costs, and difficulty in high-efficiency power generation, and achieve miniaturization costs, high gas The effect of maximizing efficiency and high-efficiency power generation

CN101614154AInactive Publication Date: 2009-12-30CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2009-12-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a process for carbonization and gasification of biomass. Biomass, including waste biomass, is gasified by a process in which the biomass is first carbonized, and the char and pyrolysis gas from the carbonizer are respectively fed to a high temperature gasifying part and a gas reformer part of a two-stage gasifier. A gasifying agent is continuously fed to the gasifying part, and intermittently fed to the gas reformer, to maintain the temperature required to avoid tar formation in the gas reformer stage. Multiple carbonization chambers are operated in rotation. When the carbonization / gasification apparatus is used to provide fuel to an electric power generator set, exhaust heat from the generator power plant is fed back to the carbonizer, and can be supplemented by exchange of heat from the gas delivered to generator power plant from the outlet of the gasifier.
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Description

[0001] The present invention is a divisional application of a patent application with an application date of March 22, 2005, an application number of 200510056829.4, and an invention title of "biomass carbonization and gasification and power generation device". technical field

[0002] The present invention relates to the generation of gas by carbonization and gasification of biomass, and to the efficient generation of electricity using biomass as an energy source. Background technique

[0003] The term "biomass" as used herein refers to a material comprising a mass of matter derived from living organisms. Biomass can include, for example, agricultural waste, forestry waste, municipal waste, construction material waste, waste from food production, waste treatment sludge, and the like, and mixtures of such materials. Biomass can include certain inorganic substances, and also large amounts of organic material more indirectly associated with living organisms, such as waste plas...

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Embodiment Construction

[0056] figure 1The specific embodiment of the invention shown is a biomass carbonization-gasification plant for pyrolysis of biomass fuels 1 such as wood-based biomass, waste-based biomass including municipal solid waste, and such mixture of biomass. The biomass carbonization-gasification device includes: a carbonization chamber 2 for receiving and heating a biomass fuel 1 to produce a carbonized material 4; Composed of a gas converter 9 for converting combustible cracked gas 3; carbonized material feeder 13, used to send carbonized material 4 to the high-temperature gasification part 8 of gasifier 7; The cracked gas 3 is sent to the gas converter 9 of the gasifier 7; and the gasification agent feeding device 14 is used to send the gasification agent 5 to the high-temperature gasification part 8 of the gasifier, and the oxygen-containing gasification agent 6 sent to the gas converter 9.

[0057] The cracked gas 3 contains tar volatilized during the generation of the carboni...