Biomass gasifier, biomass gasification plant, and production method of biomass gas
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsSatoru Matsuo, Hideaki Takahashi, Ken Tamura
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Abstract
The present disclosure intends to improve energy efficiency. A biomass gasifier (10) includes: a biomass gasification furnace (11) that produces a biomass gas from biomass fuel and a gasifying agent; a filter (13) that separates char from the biomass gas discharged from the biomass gasification furnace (11); and a char cooler (16) that performs heat exchange between the char separated by the filter (13) and at least a part of the gasifying agent to be supplied to the biomass gasification furnace (11) and heats the gasifying agent.
Claims5
A biomass gasifier comprising:
- a gasification furnace configured to produce a biomass gas from biomass fuel and a gasifying agent;
- a separation unit configured to separate char from the biomass gas discharged from the gasification furnace;
- and
- a heat exchange unit configured to perform heat exchange between the char separated by the separation unit and at least a part of the gasifying agent to be supplied to the gasification furnace and heat the gasifying agent.
A production method of a biomass gas, the production method comprising:
- a production step of producing a biomass gas from biomass fuel and a gasifying agent in a gasification furnace;
- a separation step of separating char from the biomass gas produced in the production step and discharged from the gasification furnace;
- and
- a heat exchange step of performing heat exchange between the char separated in the separation step and at least a part of the gasifying agent to be supplied to the gasification furnace and heating the gasifying agent,
- wherein, in the production step, the gasifying agent heated in the heat exchange step is used to produce the biomass gas.
Dependencies are inferred from the claim text.