Catalyst for oligomerization reaction of propylene and butylene as well as preparation method and application of catalyst

• Main Authors: LIU ZENGSHUAI, SHI GENG, WANG SHOUGANG, ZHANG JINYONG
• Format: Patent
• Language: Chinese; English
• Published: 23.01.2024
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a catalyst for oligomerization of propylene and butylene as well as a preparation method and application of the catalyst, and belongs to the technical field of catalysts. The technical problems that in the prior art, a catalyst for olefin oligomerization is high in price, low in reaction conversion rate, harsh in condition, prone to argillization, corrosive to equipment and the like are solved. The catalyst provided by the invention comprises 70 wt%-80 wt% of a main catalyst, 2 wt%-3 wt% of a co-catalyst and 18 wt%-27 wt% of a binder, wherein the main catalyst is a molecular sieve, the cocatalyst is a metal oxide, and the binder is alumina. The catalyst is used for catalyzing propylene or butylene to carry out oligomerization reaction, and has the advantages of high propylene and butylene reaction conversion rate (the conversion rate is greater than 85%), high dimer and trimer selectivity (the selectivity is greater than 80%), long one-way service cycle, good sulfur resistance, easine