Method and Apparatus for Gasification of Carbon-Containing Solid Materials with Steam and Carbon Dioxide and Their Mixtures

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This patent describes a process and apparatus for gasifying carbon-containing solid materials using a mixture of carbon dioxide, water vapor, and oxygen as the gasifying agent. The method involves introducing this agent under pressure into the lower section of a rotating reactor, utilizing plasma ignition to enhance the gasification in a fluidized bed. The resulting dust-laden raw gas and ash particles are drawn off from the reactor's underside.

Use CasesContent extracted from patent full text and abstract with AI.

• Conversion of coal, biomass, or waste materials into synthesis gas (syngas) for energy production
• Industrial production of hydrogen or other valuable chemicals from carbon-rich solids
• Waste-to-energy facilities seeking efficient gasification processes
• Improved flue gas treatment in power plants or incinerators
• Materials recovery and recycling from municipal solid waste

BenefitsContent extracted from patent full text and abstract with AI.

• Enhanced efficiency in the gasification of carbon-rich solid materials
• Ability to utilize a variety of feedstock, including biomass and waste
• Reduced emissions through controlled fluidized bed and plasma ignition
• More complete conversion of feedstock into usable synthetic gas or chemicals
• Potential for integration into energy and chemical production plants, improving sustainability.

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Patent Abstract

A gasifying agent containing a mixture of carbon dioxide, water vapor, and oxygen is introduced under pressure into the lower portion of reactor, through a feed device (4), such that blown gasification of the substances is carried out in the fluidized bed (6). The gasification of substances is carried out along the rotation axis of a reactor shell (3) which rotates by the ignition of plasma such that the dust-laden raw gas and the ash particles are drawn off from the underside of gasification reactor. An independent claim is included for a fluidized bed gasification reactor.