Method for regenerating hydrogenation catalyst for phthalate compound
AssigneeHanwha Chemical Corporation
InventorsKi Taeg Jung, Kyong Jun Yoon, Hyo Suk Kim, Jang Young Kwak, Pil Je Seong, Kyoung Il Lee
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Abstract
The present invention relates to a method for regenerating a hydrogenation catalyst for a phthalate compound. More specifically, the present invention regenerates a hydrogenation catalyst for a phthalate compound by using an alcohol, and thereby provides a method for regenerating a hydrogenation catalyst for a phthalate compound that is capable of continuously hydrogenating a phthalate compound without replacing a catalyst in a catalytic reactor, and is also capable of improving operational stability and the lifetime of a catalyst and increasing economic efficiency.
Claims9
A method for regenerating a hydrogenation catalyst for a phthalate compound, comprising the steps of
- performing a hydrogenation reaction of a phthalate compound including reacting a phthalate compound with hydrogen in the presence of a hydrogenation catalyst in a catalyst reactor, and then
- regenerating the hydrogenation catalyst at a temperature of 80° C. or more by supplying an alcohol to the catalyst reactor,
- wherein the hydrogenation catalyst includes at least one selected from the group consisting of ruthenium (Ru), palladium (Pd), rhodium (Rh), platinum (Pt), and nickel (Ni).
Dependencies are inferred from the claim text.