Study On The Preparation Process Of Bio-aviation Kerosene Catalyst Produced By Gutter Oil Methyl Ester

Bio-aviation kerosene is derived from biomass and is a renewable energy source that can be used in aviation engines and in accordance with the fossil-fuel standard of bio-fuels.Bio-jet fuel can greatly reduce the emission of particulate matter in aircraft exhaust,thus greatly reducing the impact on atmospheric environment.Bio-jet technology is one of the technologies that can turn most biomass,such as palm oil,seaweed oil,cooking oil or straw,into green,renewable aviation kerosene.And the use of food waste oil as raw material for preparation of aviation kerosene,as well as relieve pressure of aviation kerosene industry resources shortage in our country,at the same time also can solve the problem of cooking oil return table,so the significance is very significant.However,at present,due to the lack of large-scale industrial chain,there are some difficulties in the initial stage of biological aviation oil,mainly focusing on production capacity and price.Therefore according to the biological aviation kerosene in terms of production capacity and price,in this paper,the main use of food waste oil as the source of cooking oil methyl ester as raw materials,optimization of the preparation of catalysts was get better catalysts,catalytic performance was up to the standard of jet fuel of aviation fuel products.Explore type was prepared with HY molecular sieve as the carrier load of nickel and molybdenum metal with functions of hydrogenation deoxidization and fracture&isomerization can step bi-functional catalysts for catalytic and composite molecular sieve as the carrier of bi-functional catalyst preparation,preparation of beta zeolite,and beta and HY of the application of composite molecular sieves.Explore the one-step catalytic fatty acid methyl ester to the possibility of long chain alkane product,with commercial HY molecular sieve as the carrier,the load of nickel and molybdenum metal catalyst fatty acid methyl ester of catalytic reaction can get paraffin product of hydrogenation deoxidization is completely hydrogenation deoxidization rate can reach 98%,jet fuel components content in the product reached 51%.Preparation of composite catalyst by incorporating gamma-Al2O3 and supporting active metal in molecular sieve HY.The addition of gamma-Al2O3 can reduce the use of molecular sieve,increase the specific surface area of the whole catalyst,and the catalytic reaction can be obtained with the commercial HY results.The preparation of the self-prepared beta molecular sieve and HY molecular sieve prepared with composite catalyst can catalyze the production of branched alkanes and benzene series,and meet the commonly used standard of jet fuel.By replacing the nickel metal with a cheap zinc metal as the hydrogenation active metal,the prepared Zn-Mo/y-Al2O3 catalyzes a hydrodeoxygenation rate of up to 85%.The feasibility of zinc metal as a hydrogenation metal was explored.