Method and apparatus for gasifying raw material and gaseous product

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United States of America Patent

PATENT NO 10822560
APP PUB NO 20170313951A1
SERIAL NO

15525543

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Abstract

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A method and apparatus for gasifying raw material. The method includes feeding the raw material into an upper part of a fixed-bed gasifier, introducing the raw material from the upper part of the gasifier to a pyrolysis zone of the gasifier to form the fixed-bed and pyrolyzing the raw material in the presence of pyrolysis air to form a pyrolysis product. Introducing the pyrolysis product from the pyrolysis zone to a lower part of the gasifier, introducing primary air countercurrently to the lower part, carrying out a final gasification in a lower part of the gasifier in order to form a gasified gas. Introducing the gasified gas to a catalytic oxidation part and through a catalyst layer of the catalytic oxidation part, and reforming the gasified gas by way of the catalytic oxidation in the presence of reforming air in the catalytic oxidation part, forming a gaseous product.

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Patent Owner(s)

Patent OwnerAddress
TEKNOLOGIAN TUTKIMUSKESKUS VTT OYTEKNIIKANTIE 21 ESPOO 02150

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiltunen, Ilkka Vtt, FI 7 7
Kurkela, Esa Vtt, FI 14 20

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