吸热型碳氢燃料五环[6.3.1.02,7.03,5.09,11]十二烷的催化合成

吸热型碳氢燃料是为解决高超音速飞行器冷却难题而研制的一类新型燃料1].其最突出的优点是作为性能优良燃料的同时,还能满足飞行器的冷却要求,可减小飞行器的体积和质量,提高飞行速度,是高超音速飞行器的理想燃料.其冷却及燃烧原理是:大分子碳氢燃料在进入燃烧室前吸收飞行系统产生的热量气化、再裂解为小分子,产物进入燃烧室燃烧并释放出吸收的热量,从而在对系统冷却的同时提高了能源的利用率,减少了高超音速飞行器的负载,满足了燃烧室壁面和机身温度控制等要求.因此,吸热型碳氢燃料已成为各国研发的热点,但目前研究多限于原油调配燃料的催化裂解和脱氢,对新燃料的合成报道较少2,3].……

Synthesis of endothermic hydrocarbon fuel pentacyclo [6.3.1.02,7.03,5.09,11] dodecane

As an endothermic hydrocarbon fuel, pentacyclo6.3.1.02,7.03,5.09,11]dodecane has been synthesized from dicyclopentadiene catalyzed by Zn(Cu). Effects of catalyst ingredients, catalyst amount, temperature on yield of titled compound were investigated. The optimal conditions were: 15℃, n(DCPD)∶n(Zn(Cu))∶n(CH2I2)=1∶4∶8. Under the above conditions the conversion of dicyclopentadiene was 99.7% and the yield of pentacyclodocane reached 91.5%.