Catalysts for selective hydrogenation of alkynes and alkadienes

Details Catalysts for selective hydrogenation of alkynes and alkadienes Catalysts for selective hydrogenation of alkynes and alkadienes

2006-12-26

2006-12-26

Lorengo, J. A. (Department: 1755)

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

Catalyst or precursor therefor

Inorganic carbon containing

C502S178000, C502S232000, C502S240000, C502S325000, C502S330000, C502S332000, C502S339000

Reexamination Certificate

active

07153807

ABSTRACT:
Catalysts have been discovered that are useful in hydrogenation reactions, and particularly for the selective hydrogenation of acetylene and/or methyl acetylene (MA) and/or propadiene (PD) in light olefin-rich feedstreams. These catalysts can selectively hydrogenate acetylene with less selectivity to making oligomers (green oil) as compared with existing commercial catalysts, particularly palladium catalysts. These catalysts are non-palladium catalysts, and have three different constituents that are metal or metal-based components. The metal of the first constituent may be nickel or platinum, the metal of the second constituent may be from Groups 1–10, and the metal of the third constituent may be from Groups 11–12, where the Groups are of the Periodic Table of Elements (new IUPAC notation).

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