Process for liquid phase hydrogenation

Details Process for liquid phase hydrogenation Process for liquid phase hydrogenation

2006-05-15

2008-08-05

Nguyen, Tam M (Department: 1797)

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

Hydrocarbon is contaminant in desired hydrocarbon

C585S258000, C585S261000, C585S275000, C585S833000

Reexamination Certificate

active

07408091

ABSTRACT:
A process and catalyst for the liquid phase selective hydrogenation of alkynes to alkenes with high selectivity to alkenes relative to alkanes, high alkyne conversion, and sustained catalytic activity comprising a reactant comprising an alkyne and a non-hydrocarbon solvent/absorbent, contacting the reactant stream with a hydrogen-containing stream in the presence of a supported, promoted, Group VIII catalyst, removing the solvent/absorbent, and recovering the alkene product.

REFERENCES:
patent: 3755488 (1973-08-01), Johnson et al.
patent: 4126645 (1978-11-01), Collins
patent: 4517395 (1985-05-01), Obenaus et al.
patent: 6822127 (2004-11-01), Dai et al.

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