METHOD FOR THE CATALYTIC REDUCTION OF THE TAR CONTENT IN GASES FROM GASIFICATION PROCESSES USING A CATALYST BASED ON NOBLE METALS
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United States of America Patent
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Issued Date -
Mar 17, 2011
app pub date -
Apr 15, 2009
filing date -
Apr 28, 2008
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Abstract
The invention relates to a method for reducing the tar content in gases resulting from a thermochemical gasification process of carbon-containing starting material and includes contacting of at least a part of the gas obtained from the gasification process with a catalyst containing noble metals. The invention is further characterized in that the gas to be treated is not brought into contact with a zirconium-based catalyst prior to the contract with the catalyst containing noble metals. The catalyst containing noble metals comprises at least one noble metal selected from the group consisting of Pt, Pd, Rh, Ir, Os, Ru and Re, provided that, in the case that the noble metal chosen is Pt, Pt is used in combination with at least one further noble metal or Ni.
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