Method for preparing eugenol product by catalyzing hydrogenolysis of lignin through molybdenum oxide modified zirconium oxide loaded nickel
The invention discloses a method for preparing eugenol products by catalyzing lignin hydrogenolysis through molybdenum oxide modified zirconium oxide loaded nickel. The method comprises the following steps: by taking lignin as a raw material, adding a nickel-based catalyst and an alcohol solvent int...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a method for preparing eugenol products by catalyzing lignin hydrogenolysis through molybdenum oxide modified zirconium oxide loaded nickel. The method comprises the following steps: by taking lignin as a raw material, adding a nickel-based catalyst and an alcohol solvent into the raw material, reacting for 2-6 hours under the conditions that the H2 pressure is 1-3MPa and the reaction temperature is 230-270 DEG C, and depolymerizing the lignin to obtain an eugenol product, the nickel-based catalyst is composed of a carrier ZrO2-xMoO3 and an active component nickel. The conversion rate of lignin reaches up to 81.6%, the total yield of monophenol products can reach 15.4%, the yield of eugenol products reaches 7.5%, and the selectivity reaches 48.7%. The catalyst used in the method is low in raw material cost, the preparation process is simple, and high-added-value chemicals such as eugenol products can be obtained by depolymerizing lignin under mild conditions.
本发明公开了氧化钼修饰氧化锆负载的镍催化木质素氢解制 |
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