Preparation method for preparing gasoline catalyst with methanol

• Main Authors: NIE FENG, WANG YINBIN, JIANG XUEDAN, LIU GUANFENG, YU HAIBIN, FAN JINGXIN, ZANG JIAZHONG, XING SHUJIAN
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2012
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CRACKING HYDROCARBON OILS; FUELS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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; 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 relates to a preparation method for preparing a gasoline catalyst with methanol. The preparation method is characterized by comprising the following steps of: before molding the catalyst, performing aluminum-removing and silicon replenishing treatment on a catalyst matrix nanoscale ZSM-5 molecular sieve with an acid solution to adjusting the acidic property of the molecular sieve; and after the catalyst is molded, pretreating the catalyst by using a hydrothermal aging device to enhance the gasoline selectivity and stability of the catalyst. When the catalyst prepared with the method is applied to a reaction for preparing gasoline with methanol on a section of fixed bed, the gasoline yield is up to 36-37 percent.