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The world is changing and so is the aviation industry.The recent shocking surge in the price of fuel,together with the increase in environmental concerns,is affecting aviation industries around the world.In order to deal with this challenge,aviation industries explored several improvements on engine & airframe technology,operation & fleet management and other measures.However,renewable jet fuels could significantly lower greenhouse gas (GHG) emissions and can provide a long-term sustainable alternative to petroleum jet fuel.Three different aviation biofuel technologies are described as follows: F-T process,hydrotreating technology,and synthetic hydrocarbons and in particular the work progress done in Tianjin University is detailed.