MODIFIED ZEOLITE CATALYST AND METHOD OF PRODUCING UNSATURATED HYDROCARBONS USING THE SAME

• Main Authors: AKIYAMA SATOSHI, UMENO MICHIAKI, OKABE AKIHIRO
• Format: Patent
• Language: English
• Published: 13.03.2014
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL METHODS OF ORGANIC CHEMISTRY; 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

PROBLEM TO BE SOLVED: To provide a modified zeolite catalyst capable of continuously providing unsaturated hydrocarbons for a long period of time with high yield by catalytic cracking of a saturated hydrocarbon contained in a raw material such as a naphtha fraction and having improved catalytic performance such as heat resistance, and to provide a method of producing unsaturated hydrocarbons using the modified zeolite catalyst.SOLUTION: There is provided a modified zeolite catalyst which is prepared by performing dealumination-silylation treatment and chemical treatment to an intermediate fine pore zeolite which has a ten-membered ring structure composed of 10 units of tetrahedral type TO(T=Si or Al) and has a fine pore diameter in the range of 0.50 to 0.65 nm.