Method for inhibiting occurrence of pyrolysis deposit in pyrolysis gasification system, and pyrolysis gasification system
AssigneeMitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd.
InventorsYuuki Endou, Takehiro Kitta, Kazuaki Kakurata, Junichiro Abe
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Abstract
This method for inhibiting the occurrence of a pyrolysis deposit in a pyrolysis gasification system includes: gasifying biomass (S2) through pyrolysis in a pyrolysis gasification furnace (5); separating, in a solid-gas separation unit (7), a pyrolysis gas (G1) and a carbide (C) continuously formed through pyrolysis of the biomass (S2); feeding an oxygen-containing gas (G3) to the separated pyrolysis gas (G1); and introducing the pyrolysis gas (G1) together with the oxygen-containing gas (G3) to a combustion furnace (6) through a pipe (9) which constitutes a pyrolysis gas line (8).
Claims12
A method for inhibiting occurrence of a pyrolysis deposit in a pyrolysis gasification system, the method comprising the steps of:
- gasifying biomass through pyrolysis in a pyrolysis gasification furnace;
- separating, in a solid-gas separation unit having a heat resistance, a pyrolysis gas and a carbide continuously formed through pyrolysis of the biomass;
- feeding an oxygen-containing gas to the solid-gas separation unit during operation of the pyrolysis gasification furnace;
- and
- introducing a mixed gas from the solid-gas separation unit to a combustion furnace through a pipe which constitutes a pyrolysis gas line,
- wherein the mixed gas is a mixture of the pyrolysis gas and the oxygen-containing gas.
A pyrolysis gasification system comprising:
- a pyrolysis gasification furnace that gasifies biomass through pyrolysis;
- a solid-gas separation unit that has a heat resistance and separates a pyrolysis gas and a carbide continuously formed through pyrolysis of the biomass;
- a nozzle that feeds an oxygen-containing gas to the solid-gas separation unit during operation of the pyrolysis gasification furnace;
- a pipe which is configured to carry a mixed gas from the solid-gas separation unit, the mixed gas being a mixture of the pyrolysis gas and the oxygen-containing gas;
- and
- a combustion furnace which is configured to combust the mixed gas,
- wherein the mixed gas is introduced into the combustion furnace via the pipe.
Dependencies are inferred from the claim text.