Shaft gasifier for operating with hypostoichiometric oxidation
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United States of America Patent
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Aug 23, 2016
Grant Date -
Nov 20, 2014
app pub date -
Mar 22, 2012
filing date -
Mar 22, 2011
priority date (Note) -
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Abstract
The invention relates to a shaft gasifier for producing fuel gas from solid carbonaceous material. The shaft gasifier comprising a shaft wall surrounding a shaft gasifier interior, a pyrolysis zone disposed in the shaft gasifier interior, the pyrolysis zone comprising a solid material feed opening for feeding solid carbonaceous material into the shaft gasifier and a solid material discharge opening for discharging partially gasified solid carbonaceous material and a gas discharge opening for pyrolysis gas, an oxidation zone which is disposed in the shaft gasifier interior and which is in thermal contact with the pyrolysis zone, the oxidation zone comprising a gas feed opening connected to the gas discharge opening of the pyrolysis zone for discharging pyrolysis gas out of the pyrolysis zone, and a gas discharge opening. The oxidation zone is disposed between the pyrolysis zone and the shaft wall.
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