Title:
CATALYST FOR USE IN REFORMING METHANOL WITH STEAM AND METHOD FOR PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2005/009612
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a copper-based catalyst having high activity and being excellent in thermal resistance and durability and a method for producing said catalyst using a process being as simple and easy as possible at a low coat. [MEANS FOR SOLVING PROBLEMS] A catalyst for use in reforming methanol with steam, characterized in that it comprises Al alloy particles having an oxide surface layer which are prepared by a method which comprises a step of leaching, with an aqueous alkaline solution, Al alloy particles formed by pulverizing a bulky Al alloy having a quasicrystalline or a related crystalline phase and being represented by the formula: Al 100-y-zCuyTMz [wherein y represents a 10 to 30 atomic %, z represents a 5 to 20 atomic %, and TM represents at least one of the transition metals except Cu], wherein an oxide surface layer comprising an oxide of Al and an oxide of a transition metal and fine Cu particles dispersed therein is formed on the surface of the above Al alloy particles by adjusting conditions for the leaching treatment, and wherein thereafter the leached Al alloy particles are heated in an oxidizing atmosphere to thereby convert some or all of the above fine Cu particles to fine copper oxide particles.
Inventors:
TSAI AN-PANG (JP)
KAMEOKA SATOSHI (JP)
TERAUCHI MASAMI (JP)
KAMEOKA SATOSHI (JP)
TERAUCHI MASAMI (JP)
Application Number:
PCT/JP2004/010738
Publication Date:
February 03, 2005
Filing Date:
July 28, 2004
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
NAT INST FOR MATERIALS SCIENCE (JP)
TSAI AN-PANG (JP)
KAMEOKA SATOSHI (JP)
TERAUCHI MASAMI (JP)
NAT INST FOR MATERIALS SCIENCE (JP)
TSAI AN-PANG (JP)
KAMEOKA SATOSHI (JP)
TERAUCHI MASAMI (JP)
International Classes:
B01J23/745; B01J23/75; B01J25/00; C01B3/32; B01J23/72; B01J35/02; B01J35/10; B01J37/02; B01J37/08; (IPC1-7): B01J23/74; C01B3/32
Foreign References:
| JP2001276625A | 2001-10-09 | |||
| JPH07178342A | 1995-07-18 | |||
| JPH07126702A | 1995-05-16 | |||
| JPH07265704A | 1995-10-17 | |||
| JPH03238049A | 1991-10-23 | |||
| JPH07265704A | 1995-10-17 | |||
| JP3382343B2 | 2003-03-04 | |||
| JPH07126702A | 1995-05-16 | |||
| JPS61230740A | 1986-10-15 | |||
| US5077257A | 1991-12-31 |
Other References:
SATOSHI KAMEOKA: "Jun Kessho Kinzoku Shokubai o Mochiita Methanol no Suijoki Kaishitsu Hanno", SHOKUBA (CATALYSTS & CATALYSIS), vol. 45, no. 2, 10 March 2003 (2003-03-10), pages 138 - 140, XP002985314
APPLIED CATALYSIS A: GENERAL, vol. 214, 2001, pages 237 - 241
JOURNAL OF ALLOYS AND COMPOUNDS, vol. 342, 2002, pages 451 - 454
JOURNAL OF ALLOYS AND COMPOUNDS, vol. 342, 2002, pages 473 - 476
See also references of EP 1666144A4
APPLIED CATALYSIS A: GENERAL, vol. 214, 2001, pages 237 - 241
JOURNAL OF ALLOYS AND COMPOUNDS, vol. 342, 2002, pages 451 - 454
JOURNAL OF ALLOYS AND COMPOUNDS, vol. 342, 2002, pages 473 - 476
See also references of EP 1666144A4
Attorney, Agent or Firm:
Nishi, Yoshiyuki (Suite 211 26-32, Nakahara 4-chome, Isogo-ku, Yokohama-sh, Kanagawa 36, JP)
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