Abstract:
The present invention relates to a composite oxide comprising ceria, praseodymia and alumina, wherein the cerium : praseodymium molar ratio of the composite oxide is 84:16 or less, as well as to a method of preparing the composite oxide and to its use, in particular in a method of treating an exhaust gas stream.
Title translation:YTTRIUMHALTIGER催化剂用于高温KOHLENDIOXIDHYDRIERUNG,加之高温KOHLENDIOXIDHYDRIERUNG及改造和/或高温KOHLENDIOXIDHYDRIERUNG改革和方法,结合高温KOHLENDIOXIDHYDRIERUNG和重整和/或改革
Abstract:
The invention relates to a method for producing a catalyst for the high-temperature methods (i) carbon dioxide hydration, (ii) combined high-temperature carbon dioxide, and reforming and/or (iii) reforming of compounds containing hydrocarbons and/or carbon dioxide and to the use of the catalyst according to the invention in connection with the reforming and/or hydration of hydrocarbons, preferably methane, and/or carbon dioxide. For production of the catalyst a source of aluminium, which preferably comprises a water-soluble source of precursor, is brought into contact with an yttrium-containing metal salt solution, is dried, and calcined. The metal salt solution has, in addition to the yttrium species, at least one element from the group comprising cobalt, copper, nickel, iron, and zinc.