Ni hydrogenation catalysts, manufacture and use
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United States of America Patent
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Nov 20, 2007
Grant Date -
Dec 8, 2005
app pub date -
Jun 30, 2005
filing date -
Aug 4, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Improved Ni catalysts for hydrogenation reactions are disclosed. The catalysts are useful for hydrogenation such as selective hydrogenation of acetylenic impurities in crude olefin and diolefin streams. The catalysts are prepared by depositing nickel on a porous support which has the following specific physical properties; BET surface area of from 30 to about 100 m.sup.2/g, total nitrogen pore volume of from 0.4 to about 0.9 cc/g, and an average pore diameter of from about 110 to 450 .ANG. with or without modifiers of one or more elements selected from the group consisting of Cu, Re, Pd, Zn, Mg, Mo, Ca and Bi.
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