Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By alkyl or aryl transfer between molecules – e.g.,...
Patent
1995-12-26
1998-06-30
Caldarola, Glenn
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By alkyl or aryl transfer between molecules, e.g.,...
585470, 585471, 585472, C07C 552
Patent
active
057736790
ABSTRACT:
A process for shape-selective hydrocarbon conversion that involves initially contacting a feed stream which includes an alkylaromatic compound and a co-feed of water, under conversion conditions with a catalytic molecular sieve. Preferably, the catalytic molecular sieve has been modified by being ex situ selectivated with a silicon compound. After an effective amount of time, the water co-feed is omitted from the feed stream and the hydrocarbon conversion process is continued. Optionally, the catalytic molecular sieve can also be in situ trim-selectivated.
REFERENCES:
patent: 3251897 (1966-05-01), Wise
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: 3907921 (1975-09-01), Winter, III
patent: 4016218 (1977-04-01), Haag et al.
patent: 4049738 (1977-09-01), Young
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: 4150062 (1979-04-01), Garwood et al.
patent: 4224141 (1980-09-01), Morrison et al.
patent: 4283306 (1981-08-01), Herkes
patent: 4326994 (1982-04-01), Haag et al.
patent: 4402867 (1983-09-01), Rodewald
patent: 4418235 (1983-11-01), Haag et al.
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: 4559314 (1985-12-01), Shihabi
patent: 4582815 (1986-04-01), Bowes
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: 5349114 (1994-09-01), Lago et al.
patent: 5365004 (1994-11-01), Beck et al.
patent: 5367099 (1994-11-01), Beck et al.
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).
Lago et al., "The Nature of the Catalytic Sites in HZSM-5 Activity Enhancement", New Development in Zeolite Science Technology: Proceeding of the 7th International Zeolite Conference, 677-684 (1986).
Beck Jeffrey S.
Stern David L.
Caldarola Glenn
Keen Malcolm D.
Mobil Oil Corporation
Roberts Peter W.
Yildirim Bekir L.
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