Title:
METHOD FOR PRODUCING LOWER OLEFIN
Document Type and Number:
WIPO Patent Application WO/2005/105710
Kind Code:
A1
Abstract:
A method for producing a lower olefin, wherein a hydrocarbon material having two or more carbon atoms is subjected to a catalytic cracking in a fixed bed reactor packed with a catalyst, characterized in that crystalline aluminosilicate zeolite containing a rare earth element is used as a catalyst, said catalyst has a size of 14 mesh (1.2 mm) or greater, and the pressure loss due to the catalyst layer in the reactor is suppressed to 0.02 MPa or less. The method can be suitably employed for producing lower olefins such as ethylene and propylene with a high yield over a long period of time, in the catalytic cracking of a hydrocarbon material by the use of a crystalline aluminosilicate zeolite catalyst having a rare earth element carried thereon.
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Inventors:
SAWADA GORO (JP)
TAKEUCHI MITSURU (JP)
FURUKAWA TAKURO (JP)
TAKEUCHI MITSURU (JP)
FURUKAWA TAKURO (JP)
Application Number:
PCT/JP2005/008067
Publication Date:
November 10, 2005
Filing Date:
April 27, 2005
Export Citation:
Assignee:
MARUZEN PETROCHEMICAL COMPANY (JP)
SAWADA GORO (JP)
TAKEUCHI MITSURU (JP)
FURUKAWA TAKURO (JP)
SAWADA GORO (JP)
TAKEUCHI MITSURU (JP)
FURUKAWA TAKURO (JP)
International Classes:
C07C4/10; C07B61/00; C07C4/06; C07C11/04; C07C11/06; C07C11/08; (IPC1-7): C07C4/10; C07C4/06; C07C11/04; C07C11/06; C07C11/08
Foreign References:
| JPH11180902A | 1999-07-06 | |||
| JPH11253807A | 1999-09-21 | |||
| JPS5629919B2 | 1981-07-11 |
Other References:
YAMANAKA T.: "Shokubai Kagaku", 1964, THE NIKKAN KOGYO SHINBUN, LTD., pages: 246 - 251, XP002994418
Attorney, Agent or Firm:
Senmyo, Kenji (38 Kanda-Higashimatsushitacho, Chiyoda-k, Tokyo 42, JP)
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