Zeolite catalyst with chromium for the production of gasolines w

Details Zeolite catalyst with chromium for the production of gasolines w Zeolite catalyst with chromium for the production of gasolines w

1995-11-15

1997-11-11

Lewis, Michael

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

Zsm type

502 60, 502 78, 502 79, B01J 2100

Patent

active

056863705

ABSTRACT:
A catalyst for production of high octane number gasoline having low aromatic content from a hydrocarbon feedstock containing n-paraffins includes a zeolite composition containing chromium in an amount of between about 0.1% to about 1.0% by weight of the catalyst, said chromium being located at acidic sites of said zeolite composition whereby aromatic forming reactions are inhibited. The catalyst is provided according to a process including sequential impregnation so as to position chromium at the acidic sites as desired.

REFERENCES:
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patent: 3236910 (1966-02-01), Bukata et al.
patent: 3367885 (1968-02-01), Rabo et al.
patent: 3383169 (1968-05-01), Young
patent: 5186918 (1993-02-01), Skeels et al.
patent: 5234876 (1993-08-01), Swaroop et al.
"Character of Distribution of Cr.sup.3+ and Cr.sup.5+ ". . . , By A. A. Slinkin et al. Kinetike i Katliz, vol. 30, No. 1, pp. 184-192, Jan.-Feb. 1989.
"Radical Formation and Catalytic Activity of . . . ", By A.V. Kucherov et al. Kinetike i Kataliz, vol. 30, No. 1, pp. 193-201, Jan.-Feb., 1989.
"Various States of Cr Ions in Y and ZSM-5 Zeolites . . . ", By B. Wichterlova et al., Structure of Reactivity of Modified Zeolites, Copyright 1984.

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