Catalysts for deep catalytic cracking of petroleum naphthas...

Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C502S071000, C502S256000, C502S263000, C502S527240

Reexamination Certificate

active

07098162

ABSTRACT:
Provided herein are monocomponent and hybrid catalyst compositions for use in steam-cracking of hydrocarbon feeds to selectively produce light olefins. The catalyst compositions being characterized by a first catalytic component comprising oxides of aluminum, silicon, chromium, and optionally, oxides of monovalent alkaline metals, and further comprising a binder, preferably bentonite clay. Preferably, the catalyst compositions will comprise a catalytic component in accordance with the following formula: (a) SiO2·(b) A12O3·(c) Cr2O3(d) alk2O, with alk being a monovalent alkaline metal, preferably selected from sodium, potassium and lithium. The second catalytic component is selected from a crystalline zeolite or a silica molecular sieve. Also provided in the present invention are methods of making the catalyst compositions.

REFERENCES:
patent: 2849383 (1958-08-01), Hirschler et al.
patent: 2887450 (1959-05-01), Hirschler et al.
patent: 3013988 (1961-12-01), Bukata et al.
patent: 3557234 (1971-01-01), Henry et al.
patent: 4732881 (1988-03-01), Le Van Mao
patent: 4829040 (1989-05-01), Ward
patent: 4966969 (1990-10-01), Sato et al.
patent: 5135898 (1992-08-01), Le Van Mao et al.
patent: 6090272 (2000-07-01), Drake et al.
patent: 0 26 2 049 (1988-03-01), None
patent: 553736 (1943-06-01), None
patent: 1332468 (1973-10-01), None
patent: 50 004002 (1975-01-01), None
patent: 57-159726 (1982-10-01), None
Le Van Mao et al., “Hybrid catalysts containing zeolite ZSM-5 and supported gallium oxide in the aromatization of n-butane”, Catalysis Today, vol. 31, 1996, pp. 247-255.
Le Van Mao, “Hybrid catalyst containing a microporous zeolite and a mesoporous cocatalyst forming a pore continuum for a better desorption of reaction products”, Microporous and Mesoporous Materials, vol. 28, 1999, pp. 9-17.
Le Van Mao et al., “Selective deep catalytic cracking process (SDCC) of petroleum feedstocks for the production of light olefins”, Catalysis Letters, vol. 73, No. 2-4, May 2001, pp. 181-186.
Full English translation of JP 57-159726, published Oct. 1, 1982.
Petrochemical Processes, Chauvel, A. et al., 1989, Edition Technip, vol. 1, p. 130.
Petrochemical Processes, Chauvel, A. et al., 1989, Edition Technip, vol. 1, p. 188.
U.S. Appl. No. 60/163,459, Le Van Mao, R.—“Selective deep catalytic cracking of petroleum napthas and other hydrocarbon feedstocks for the production of light olefins and aromatics”, Filed Nov. 4, 1999.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Catalysts for deep catalytic cracking of petroleum naphthas... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalysts for deep catalytic cracking of petroleum naphthas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalysts for deep catalytic cracking of petroleum naphthas... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3641495

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.