种钯-金系负载型加氢催化剂

• Format: Patent
• Language: Chinese
• Published: 01.06.2018
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

本发明涉及钯-金系负载型加氢催化剂，催化剂中含有钯、金，载体中主要含AlO，其特征在于：以催化剂的质量为100％计，其中Pd含量为0.01～0.55％；Au含量为0.02～0.25％，该催化剂为合金型双金属催化剂，由于制备方中克服了浸渍液表面张力及溶剂化效应对钯-金的分散的不利影响，制备的催化剂，更利于形成钯-金合金，催化剂具备优异的选择性。本发明催化剂可用于碳二、碳三等馏分的选择加氢过程，具有良好的加氢活性、优异的选择性及较好的抗结焦性能；同时带来较高的乙烯、丙烯增量。 The invention relates to a Pd/Au-series supported hydrogenation catalyst which contains palladium and gold, and a carrier mainly contains Al2O3. On the basis that the mass of the catalyst is 100%, the catalyst includes 0.01-0.55% of the palladium and 0.02-0.25% of the gold. The catalyst is an alloy-type bimetal catalyst. Because adverse effects due to surface tension and solvation effect of an impregnation liquid on dispersion of the palladium and gold, the palladium-gold alloy can be formed more easily in the catalyst. The catalyst has excellent selectivity, can be used for selective hydrogenation of C2, C3 and the like fractions, has excellent hydrogenation activity, selectivity and anti-coking performance, and also has high yield increase of ethylene and propylene.