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Catalyst system for deodorization of a mixture of sulfur compounds and compounds such as aldehydes, alcohols and/or hydrocarbons
Catalyst system for deodorization of a mixture of sulfur compounds and compounds such as aldehydes, alcohols and/or hydrocarbons
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机译:脱硫化合物和醛类,醇类和/或烃类化合物的混合物的脱臭催化剂系统
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摘要
A catalyst system for deodorization and an apparatus for deodorization, each of which comprises a pretreating catalyst and a noble metal catalyst, the pretreating catalyst converting a sulfur atom of low oxidation state which deactivates the noble metal catalyst into a sulfur atom of high oxidation state which has little deactivation effects thereon, the noble metal catalyst oxidizing aldehyde, etc., wherein a material to be deodorized is brought into contact with the pretreating catalyst prior to being brought into contact with the noble metal catalyst. As the pretreating catalyst, a catalyst comprising at least one selected from the group consisting of vanadium, chromium, manganese, iron, cobalt, nickel, copper and oxides thereof is used, while as the noble metal catalyst, a catalyst comprising at least one selected from the group consisting of ruthenium, rhodium, palladium, silver, rhenium, osmium, iridium, platinum and gold is used. According to the catalyst system, a striking deodorizing-effect is provided to, in particular, a mixture of sulfur cop s of low oxidation state and compounds such as aldehydes or alcohols.
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