Application And Preparation Of Non-hydrogenation Reducing Olefin Catalyst In FCC Gasoline

With the rigidly enforcing day by day of regulation of environmental protection, the production of the clean fuel has already become the urgent task that world oil refining industry has faced. The fluid catalytic cracking is in order to the oil refining device that produced mainly petrol and diesel oil, gave consideration to the industrial chemical raw materials. Especially in our country, 80% of the petrol comes from the catalytic cracking, and the content of the olefin is up to 40%-60% in the catalytic cracking petrol. The new standard of petrol has been implemented in our country, which has required that the volume fraction of olefin is not more than 35% in the petrol. Improving catalytic cracking petrol quality is of great realistic meanings to produce clean petrol in our country.In this paper, preparation and application of non-hydrogen reducing olefin catalysts have been studied separately in the FCC gasoline. These catalysts are prepared with y-Al₂O₃, β- zeolite and SiO₂, γ- Al₂O₃ as carrier, respectively. Acidic modification, carrier steam treating, carrier chlorine technology and microwave synthetic technology introduce preparation of catalyst, and improved reducing olefin performance of catalyst. At the same time, synthesis velocity of catalyst is accelerated greatly under microwave irradiation. By Japan's Neo-Confucianism D/max-RBX ray diffraction apparatus, FR-560 infrared spectroscopy, Digisorb 2400 physical absorption apparatus, phase, acidity, BET surface area, pore size and pore capacity is determined separately for catalyst. Utilize fluorescence indicator method and PONA chromatogram method to determined group content of product gasoline.A series of y- Al₂O₃ supported A-B bimetallic catalysts are prepared by conventional...