Off-site treatment for hydrogenation catalysts
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United States of America Patent
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May 11, 2010
Grant Date -
Feb 8, 2007
app pub date -
Apr 28, 2004
filing date -
Apr 30, 2003
priority date (Note) -
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Abstract
The present invention concerns a process for “ex situ” treatment of a hydrogenation catalyst containing nickel prior to use, consisting of carrying out three steps, namely bringing the catalyst into contact with at least one sulphur-containing compound or agent (the step termed selectivation), treating said catalyst with hydrogen at a temperature of more than 250° C. (the step termed reduction) and passivation of said catalyst.
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