Title: Catalyst support of mixed cerium zirconium titanium oxide, including use and method of making

Abstract

A durable catalyst support/catalyst is capable of extended water gas shift operation under conditions of high temperature, pressure, and sulfur levels. The support is a homogeneous, nanocrystalline, mixed metal oxide of at least three metals, the first being cerium, the second being Zr, and/or Hf, and the third importantly being Ti, the three metals comprising at least 80% of the metal constituents of the mixed metal oxide and the Ti being present in a range of 5% to 45% by metals-only atomic percent of the mixed metal oxide. The mixed metal oxide has an average crystallite size less than 6 nm and forms a skeletal structure with pores whose diameters are in the range of 4-9 nm and normally greater than the average crystallite size. The surface area of the skeletal structure per volume of the material of the structure is greater than about 240 m.sup.2/cm.sup.3. The method of making and use are also described.

Inventors:

Willigan, Rhonda R ^[1]; Vanderspurt, Thomas Henry ^[2]; Tulyani, Sonia ^[1]; Radhakrishnan, Rakesh ^[3]; Opalka, Susanne Marie ^[2]; Emerson, Sean C ^[4]

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+ Show Inventor Affiliations

1. Manchester, CT
2. Glastonbury, CT
3. Vernon, CT
4. Broad Brook, CT

Issue Date:

Tue Jan 18 00:00:00 EST 2011

Research Org.:

UTC Power Corporation (South Windsor, CT)

Sponsoring Org.:

USDOE

OSTI Identifier:

1013050

Patent Number(s):

7871957

Application Number:

11/803,481

Assignee:

UTC Power Corporation (South Windsor, CT)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J23/002 - {Mixed oxides other than spinels, e.g. perovskite}
B01J23/10 - of rare earths
B01J23/63 - with rare earths or actinides
B01J23/6567 - {Rhenium}
B01J2523/00 - Constitutive chemical elements of heterogeneous catalysts
B01J2523/3712 - Cerium
B01J2523/47 - Titanium
B01J2523/48 - Zirconium
B01J2523/69 - Tungsten
B01J2523/828 - Platinum
B01J35/1019 - {100-500 m2/g}
B01J35/1038 - {less than 0.5 ml/g}
B01J35/1061 - {2-50 nm}
B01J37/0009 - {Use of binding agents
B01J37/0203 - {the impregnation liquid containing organic compounds}
B01J37/0205 - {in several steps}
B01J37/03 - Precipitation
B01J37/08 - Heat treatment {
B01J37/18 - with gases containing free hydrogen

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B2203/0283 - containing a CO-shift step, i.e. a water gas shift step
C01B2203/1064 - Platinum group metal catalysts
C01B2203/1082 - Composition of support materials
C01B3/16 - using catalysts

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G25/006 - {Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/64 - Nanometer sized, i.e. from 1-100 nanometer
C01P2006/12 - Surface area
C01P2006/14 - Pore volume
C01P2006/16 - Pore diameter

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P20/52 - using catalysts, e.g. selective catalysts

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DOE Contract Number:  

FC26-05NT42453

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE