Selective hydrogenation of alkynes and/or diolefins

Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – Hydrocarbon is contaminant in desired hydrocarbon

Reexamination Certificate

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C585S262000, C502S167000

Reexamination Certificate

active

10721046

ABSTRACT:
A process for selectively removing alkynes and/or diolefins from a feedstock also containing olefins comprises contacting the feedstock with hydrogen in the presence of a catalyst composition. The catalyst composition comprises at least one metal component selected from Groups 8 to 10 of the Periodic Table of Elements impregnated on a support, wherein an organic nitrogen-containing compound is contacted with the support before, during or after the metal impregnation.

REFERENCES:
patent: 3651167 (1972-03-01), Rosset
patent: 3793232 (1974-02-01), Duhaut et al.
patent: 3859377 (1975-01-01), Gross et al.
patent: 4149961 (1979-04-01), Antos
patent: 4207169 (1980-06-01), Courty et al.
patent: 4243516 (1981-01-01), Martino et al.
patent: 4420420 (1983-12-01), Mita et al.
patent: 4487848 (1984-12-01), Robinson et al.
patent: 4522935 (1985-06-01), Robinson et al.
patent: 4677094 (1987-06-01), Moser et al.
patent: 4691070 (1987-09-01), Nakamura et al.
patent: 4705906 (1987-11-01), Brophy et al.
patent: 5233118 (1993-08-01), Bricker et al.
patent: 5356851 (1994-10-01), Sarrazin et al.
patent: 5364998 (1994-11-01), Sarrazin et al.
patent: 5536695 (1996-07-01), Blejean et al.
patent: 5877363 (1999-03-01), Gildert et al.
patent: 5965481 (1999-10-01), Durand et al.
patent: 6084140 (2000-07-01), Kitamura et al.
patent: 6096933 (2000-08-01), Cheung et al.
patent: 6153090 (2000-11-01), Le Peltier et al.
patent: 6187985 (2001-02-01), Le Peltier et al.
patent: 6255548 (2001-07-01), Didillon et al.
patent: 6355854 (2002-03-01), Liu
patent: 6436871 (2002-08-01), Liu
patent: 6498280 (2002-12-01), Uzio et al.
patent: 6503866 (2003-01-01), Shepherd et al.
patent: 6514904 (2003-02-01), Moser et al.
patent: 6586647 (2003-07-01), Abrevaya et al.
patent: 6777371 (2004-08-01), Liu
patent: 2002/0068843 (2002-06-01), Dai et al.
patent: 2002/0136686 (2002-09-01), Takahashi
patent: WO 98/47617 (1998-10-01), None
patent: WO 98/47618 (1998-10-01), None
patent: WO 98/47620 (1998-10-01), None
patent: WO 2004/046076 (2004-06-01), None
Hydrazine From Wikipedia, the Free Encyclopedia, May 14, 2006.
Li, et al., “Selective Catalytic Reduction of NO Over Metal Oxide or Noble Metal-Doped In2O3/Al2O3Catalysts By Propene in the Presence of Oxygen”, Reaction Kinetics and Catalysis Letters, 2003, vol. 80, No. 1, pp. 75-80, XP008030692.
U.S. Appl. No. 10/720,558, filed Nov. 24, 2003, Lowe et al.
U.S. Appl. No. 10/720,617, filed Nov. 24, 2003, Lowe et al.
U.S. Appl. No. 10/720,607, filed Nov. 24, 2003, Lowe et al.
H. Scott Fogler,Elements of Chemical Reaction Engineering, 2nd Edition, PTR Prentice Hall, Inc., pp. 29-52 (1992).
J. M. Smith,Chemical Engineering Kinetics, McGraw-Hill Book Company, pp. 231-279 (1956).
S. Asplund, “Coke Formation and Its Effect on Internal Mass Transfer and Selectivity in Pd-Catalysed Acetylene Hydrogenation”, Journal of Catalysis, vol. 158, pp. 267-278 (1996).

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