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US 2026/0216701 A1Published application
Hydrogenation catalyst
AssigneeHanwha Solutions Corporation
InventorsJeong Kwon KIM, Woo Jin PARK, Byungjin LEE, Bongsik JEON
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Abstract
Provided are a catalyst for hydrogenation reaction, and more specifically, to a hydrogenation catalyst that enables high selectivity and conversion rate in a hydrogenation reaction that converts a carboxylic acid group, an aldehyde group, or a ketone group into an alcohol group.
Claims19
A hydrogenation catalyst, comprising ruthenium and tin as catalytically active metal(s),
- wherein the content of ruthenium is 30 wt % or more and less than 55 wt %, and the content of tin is greater than 45 wt % and 70 wt % or less, based on the total weight of ruthenium and tin, and
- wherein the hydrogenation catalyst has a hydrogen adsorption ratio (A2/A1) of 70 mol % to 99 mol %, and the hydrogen adsorption ratio (A2/A1) is the amount of hydrogen adsorption (A2) at a temperature of 523 K or less of the hydrogenation catalyst to the total amount of hydrogen adsorption (A1) of the hydrogenation catalyst, as measured by a Hydrogen-Temperature-Programed Reduction (H2-TPR) analysis.
A process for preparing a hydrogenation catalyst, comprising:
- preparing a metal precursor solution by dissolving one or more precursor compounds comprising ruthenium as catalytically active metal(s) and one or more precursor compounds comprising tin as catalytically active metal(s) in an acidic aqueous solution;
- and
- performing a reduction treatment in the presence of hydrogen gas after drying the metal precursor solution or a mixture comprising it;
- wherein the content of ruthenium is 30 wt % or more and less than 55 wt % and the content of tin is greater than 45 wt % and 70 wt % or less, based on the total weight of ruthenium and tin, in the metal precursor solution.
1 more element
Dependencies are inferred from the claim text.