Pd/ZrO2-HZSM-5 bifunctional catalyst and preparation method of Pd/ZrO2-HZSM-5 bifunctional catalyst

• Main Authors: LU YI, DING XIAOJUN, QU HAOJIE, ZHANG LEI, SUN YANTING, HUANG JINGWEI, LI MIN, HU LELIANG, WANG KE
• Format: Patent
• Language: Chinese; English
• Published: 15.09.2020
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a Pd/ZrO2-HZSM-5 bifunctional catalyst and a preparation method thereof. A carrier of the Pd/ZrO2-HZSM-5 bifunctional catalyst is ZrO2-HZSM-5, and the mass ratio of ZrO2 to HZSM-5 is 1: 1; an active component of the Pd/ZrO2-HZSM-5 bifunctional catalyst is Pd, and the loading capacity of the Pd is 1%-3% of the mass of the carrier. According to the Pd/ZrO2-HZSM-5 bifunctionalcatalyst and the preparation methodthereof, ZrO2 and HZSM-5 are compounded as a carrier to increase the acidic sites of the catalyst, the diameter range of adsorption molecules is widened; the loadedmetal Pd reduces the activation energy of the C-O bond, and the hydrodeoxygenation catalytic activity of the catalyst is enhanced; the prepared catalyst integrates the respective deoxygenation and hydrogenation advantages of HZSM-5 and ZrO2 so as to form the advantage complementation, and the catalyst has the potential of catalyzing bio-oil to prepare high quality fuels or high added value products, and has strong applica