Catalyst for acetylene cyclotrimerization for producing benzene, and preparation method and application thereof

• Main Authors: DU BO, WANG FEI, SHI XUEJUN, YU HAIPENG, WU LIYANG, SHI DONGJUN, MING RUIGUANG, WU DAOHONG, HUANG WEI, SU ERQIANG, ZHENG QINGQING
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2018
• 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

The invention discloses a catalyst for acetylene cyclotrimerization for producing benzene, and a preparation method and an application thereof. The catalyst comprises cobalt, palladium, chromium and an alpha-Al2O3 carrier, wherein the load capacity of the cobalt is 0.1-3% of the weight of the alpha-Al2O3 carrier, the load capacity of the palladium is 0.03-2% of the weight of the alpha-Al2O3 carrier, and the load capacity of the chromium is 0.05-3% of the weight of the alpha-Al2O3 carrier. The catalyst has the advantages of simple and easily obtained components, long life, remarkable improvement of the acetylene conversion rate and the benzene selectivity, and very good application prospect. 本发明公开了种乙炔环三聚制苯用催化剂及其制备方法和应用，该催化剂包括：钴、钯、铬和ɑ-AlO载体，其中，基于所述ɑ-AlO载体的质量，所述钴的负载量为0.1～3wt％，所述钯的负载量为0.03～2wt％，所述铬的负载量为0.05～3wt％。该催化剂成分简单易获得，寿命较长，且可显著提高乙炔的转化率和苯的选择性，具有很好的应用前景。