Preparation method for C5 and C6 alkane isomerization catalyst

• Main Authors: FEI YANAN, ZHENG XIUXIN, QI BANGFENG, ZANG JIAZHONG, LI XIAOGUO, LIU YOUPENG, LI JIA, WANG DONG, GAO PENG, WU QING, SUN GUOFANG, YU HAIBIN, ZHAO JIA
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• 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 relates to a preparation method for a C5 and C6 alkane isomerization catalyst. The preparation method comprises the following steps: (1) mixing, kneading, extruding and forming mordenite, an inorganic binder, methylcellulose and a nitric acid solution, and performing drying and roasting to obtain a carrier; (2) soaking the carrier in the step (1) in hydrophobic organic amine-alcohol solution, and adding organic amine according to 20%-150% (a molar fraction) of total acid amount of the carrier detected by NH3-TPD, wherein the weight of a soaking solution is 1.2-3 times that of the carrier; (3) drying the soaked carrier, and controlling the drying temperature to be 0-100 DEG C before and after a low-temperature desorption peak detected by NH3-TPD; and (4) performing ion exchange on a VIII-family metal precursor for the carrier dried in step (3), and performing drying and roasting to obtain the catalyst. According to the catalyst prepared by the preparation method, noble metals are highly dispersed