Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs
Patent
1993-05-28
1995-12-19
Pal, Asok
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
502 62, 502 64, 502 85, 502 86, B01J 2906
Patent
active
054768233
ABSTRACT:
An ex situ selectivated catalytic molecular sieve for enhanced shape selective hydrocarbon conversions in which a catalytic molecular sieve is modified by being exposed to at least two selectivation sequences, each sequence including an impregnation of the molecular sieve with a selectivating agent and a subsequent calcination of the impregnated molecular sieve. The ex situ selectivation method is also described, including the use of low volatility organic carriers for the selectivating agent. Also, a method for moderate steaming of the ex situ selectivated molecular sieve. Also a method for in situ trim-selectivating the ex situ selectivated catalytic molecular sieve. Also described is the process for shape selective hydrocarbon conversion comprising contacting a hydrocarbon feedstream under conversion conditions with the modified catalytic molecular sieve.
REFERENCES:
patent: 3257310 (1966-06-01), Plank et al.
patent: 3437587 (1969-04-01), Elbert et al.
patent: 3682996 (1972-08-01), Kerr
patent: 3698157 (1972-10-01), Allen et al.
patent: 4016218 (1977-04-01), Haag et al.
patent: 4060568 (1977-11-01), Rodewald
patent: 4086287 (1978-04-01), Kaeding et al.
patent: 4090981 (1978-05-01), Rodewald
patent: 4100215 (1978-07-01), Chen
patent: 4117024 (1978-09-01), Kaeding
patent: 4127616 (1978-11-01), Rodewald
patent: 4145315 (1979-03-01), Rodewald
patent: 4224141 (1980-09-01), Morrison et al.
patent: 4231899 (1980-11-01), Chen et al.
patent: 4283306 (1981-08-01), Herkes
patent: 4326994 (1982-04-01), Haag
patent: 4390414 (1983-06-01), Cody
patent: 4402867 (1983-09-01), Rodewald
patent: 4443554 (1984-04-01), Dessau
patent: 4465886 (1984-08-01), Rodewald
patent: 4477583 (1984-10-01), Rodewald
patent: 4487843 (1984-12-01), Telford et al.
patent: 4522929 (1985-06-01), Chester et al.
patent: 4548914 (1985-10-01), Chu
patent: 4554260 (1985-11-01), Pieters et al.
patent: 4559314 (1985-12-01), Shihabi
patent: 4843057 (1989-06-01), D'Amore et al.
patent: 4851604 (1989-07-01), Absil et al.
patent: 4927979 (1990-05-01), Yamagishi et al.
patent: 4950835 (1990-08-01), Wang et al.
patent: 5173461 (1992-12-01), Absil et al.
patent: 5349113 (1994-09-01), Chang et al.
patent: 5349114 (1994-09-01), Logo et al.
patent: 5365003 (1994-11-01), Chang et al.
patent: 5365004 (1994-11-01), Beck et al.
patent: 5367099 (1994-11-01), Beck et al.
Process for the Recovery of High-Purity M-Ethylphenol, Publication No. EP0296582A2 Jun. 23, 1988.
Nakajima et al., "p-Xylene-Selective Disproportionation of Toluene over a Modified Pentasil Type Zeolite", Sekiyu Gakkaishi, 35(2), 185-189 (1992).
Hibino et al., "Shape-Selectivity over HZSM-5 Modified by Chemical Vapor Deposition of Silicon Alkoxide", Journal of Catalysis, 128, 551-558 (1991).
Beck Jeffrey S.
McCullen Sharon B.
Olson David H.
Kenehan, Jr. Edward F.
McKillop Alexander J.
Mobil Oil Corp.
Pal Asok
Santani Dennis P.
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