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US 12,173,109 B2Granted
Preparation method of hydrogenated petroleum resin
AssigneeHanwha Solutions Corporation
InventorsSangho Seo, Keedo Han, Pilje Seong, Dong Il Shin, Bong Sik Jeon
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Abstract
The invention relates to a method for preparing hydrogenated petroleum resin. More specifically, the invention relates to a method for preparing hydrogenated petroleum resin having aromaticity of 10% or more and exhibiting excellent color and thermal stability, through a hydrogenation reaction in a slurry reactor, using a selective hydrogenation catalyst having excellent selectivity to olefinic double bonds in petroleum resin.
Claims16
A method for preparing hydrogenated petroleum resin comprising the steps of:
- introducing a selective hydrogenation catalyst and hydrogen gas in a mixture of petroleum resin and a solvent and conducting a hydrogenation reaction,
- wherein the selective hydrogenation catalyst is a supported catalyst in which nickel and sulfur are supported on a carrier, and comprises nickel in the content of 40 to 80 wt %, based on the total weight of the selective hydrogenation catalyst, and
- the hydrogenated petroleum resin has aromaticity of 10 to 15%, APHA value measured according to ASTM D1209 of 10 to 20, and color number measured with Gardner color scale after aging at 180° C. for 72 hours of 13 to 15.
Dependencies are inferred from the claim text.