Study On The Synthesis Route Of Biomass To High-density Renewable Aviation Fuel

Due to the rapid development of aviation technology in recent years,the high energy density fuel used by aircraft with limited capacity has attracted wide attention.In order to meet the demand of the new generation of advanced aviation fuel,many researchers try to develop high energy density fuel with high combustion calorific value and low freezing point.Compared with conventional fuel,the most significant features of high energy density fuel are higher density and larger volume calorific value,which can provide longer flight distance and larger carrying capacity without changing the aircraft fuel tank capacity.High-performance fuels are usually made from petroleum-based materials,a trend that is clearly unsustainable given the world's population growth and the desire of developing countries to emulate energy-intensive growth strategies adopted in the past.The development of sustainable alternatives to jet and diesel fuels to cope with the growing energy crisis is an active research field.As a renewable and environmentally friendly energy source,biomass has been more and more widely studied by domestic and foreign scholars in recent years.A large number of research results show that lignocellulosic biomass is a very important and versatile source of biomass.Therefore,high-performance fuels can not only be made from petroleum,but also from bio-based materials,which has become a new direction.Renewable biomass resources replace fossil energy as the raw material of future synthetic aviation fuel,which is an inevitable trend of the development of the times.The energy density of fuel is directly related to the molecular structure.Alkanes,cycloalkanes,polycyclic compounds and polycyclic compounds are all high-tension compounds and the tension is gradually increased to increase the calorific value of fuel combustion.In this paper,the catalytic conversion of three biomass platform compounds into high-density fuels was studied:1)Longifolene is used as a raw material to produce longifolene cyclopropane compounds through the Simmons-Smith reaction.The introduction of a three-membered ring can enhance the rigidity of flexible compounds such as longifolene,which has greater ring tension and is a potential high-density aviation fuel;2)Dicyclopentenone is synthesized by dimerization or photocatalytic reaction using 2-cyclopentenone as a raw material.Dicyclopentenone is then used to efficiently synthesize aviation fuel JP-10 by Huang minlon reduction method,reducing the current production cost of JP-10 and achieving extensive use of biomass energy.3)Using?-caryophyllene isomerized saturated hydrocarbon as raw material under the action of chloroaluminate-type ionic liquid catalyst,it isomerized to produce a mixture of various alkyl adamantane.Large molecular tension energy and good low temperature performance meet the needs of harsh working environments such as extreme cold,and meet the performance requirements of high-density fuel.