Methanol reforming catalyst having a reduced volume shrinkage

Details Methanol reforming catalyst having a reduced volume shrinkage Methanol reforming catalyst having a reduced volume shrinkage

2005-08-09

2005-08-09

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

C252S373000, C423S656000, C502S345000, C502S346000

Reexamination Certificate

active

06926880

ABSTRACT:
A methanol reforming catalyst containing passivated copper and zinc oxide and/or alumina can be prepared by(1) precipitating or spray-drying a mixture of catalyst precursor components dissolved or suspended in a diluent in order to form a solid catalyst precursor in the form of powder or granules,(2) calcining and reducing the solid catalyst precursor obtained in stage (1),(3) passivating the reduced catalyst precursor obtained in stage (2) and(4) shaping the passivated catalyst precursor obtained in stage (3) to form the catalyst.A reduction in the volume shrinkage and an increase in the mechanical hardness during operation of the methanol reforming catalyst are achieved by the preparation process.

REFERENCES:
patent: 5928985 (1999-07-01), Williams
patent: 6051163 (2000-04-01), Kumberger et al.
patent: 2002/0169075 (2002-11-01), Holzle et al.
patent: 195 05347 (1995-09-01), None
patent: 198 01373 (1999-07-01), None
patent: 884 270 (1998-12-01), None
patent: 884 272 (1998-12-01), None

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