废弃油脂经酯交换、加氢脱氧能得到生物C15～C18正构烷烃，再加氢裂化则是制备航空生物喷气燃料最关键的一步反应工序，开发大孔径催化剂是防止二次裂化、提高煤油选择性的发展趋势。本研究拟开发孔径2～50nm的介孔MCM-41分子筛，制备成规整结构化载体，负载Ni、W活性金属组分，硫化后催化加氢裂化生物C15～C18烷制备航空生物喷气燃料(C19～C14)。重点研究高分子量三嵌段共聚物扩孔方法对MCM-41介孔结构和稳定性的影响，评价裂化与加氢活性；用分子模拟中的MC方法模拟裂解产物分子在催化剂表面的吸附、MD方法模拟在载体孔道内的扩撒系数与扩散能垒，辅助研究载体结构对航煤择形性的影响规律，减少二次裂化；反应条件优化后，液态烃质量收率>90%，煤汽比>2.5，煤油质量收率大于64%。本研究产业化后能减少碳交易费用，促进可再生能源的应用，缓解能源危机，是国家应当储备的战略技术。

Waste oil and fat can be used to produce bio-alkanes(C15～C18) by transesterification and hydrodeoxgenation reactions. The hydrocracking of bio-alkanes for avation bio-jet fuel is the key reaction process. Developing of catalyst with large pore diameter is the development trend to increase the kerosene yield in case of secondary cracking. This study will develop a structured mesoporous NiW/MCM-41 molecular sieve, then load Ni and W. After vulcanization, it is used to produce avation bio-jet fuel by hydrocracking , which main components are N-alkanes and isoparaffin (C9～C14 ). Firstly, the effect of reaming method using triblock copolymers with high molecular weight on the mesoporous structure and stability of NiW/MCM-41 will be study. Then, evaluates the cracking and hydrogenation abilities for N-alkanes. Molecular modeling method aids to study the effect of MCM-41 structure on bio-jet fuel selectivity in case of secondary cracking, such as a MC method will be used to study the adsorption properties of hydrocracking products on the surface of MCM-41, a MD method will be used to study the diffusion coefficients and diffusion energy barriers in the six-membered ring pore. By optimization, the liquid bio-jet fuel yield will exceed 90%, the ratio of kerosene to gasoline will exceed 2.5 and the kerosene mass yield will exceed 64%. After industrialization, this technology can reduce the carbon trading charges for our country, promote the application of renewable energies and alleviate the energy crisis. It is one of strategic technology worth of national reserve.