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Hydrocracking of algae oil to aviation fuel-ranged hydrocarbons over NiMo-supported catalysts
Catalysis Today ( IF 5.2 ) Pub Date : 2018-07-21 , DOI: 10.1016/j.cattod.2018.07.047
Yanyong Liu , Kazuhisa Murata , Megumu Inaba

An algae oil from Botryococcus braunii (CnH2n–10, n = 29–34) and its model compound (squalene, C30H50) were hydrocracked to light hydrocarbons over NiMo-supported catalysts in batch reactors. Polyoxocation [AlO4Al12(OH)24(H2O)12]7+-pillared montmorillonite (denoted by Al13-Mont) was prepared as a support for NiMo catalyst in the hydrocracking reaction. Al13-Mont had large micropores, large BET surface area, high temperature stability, and properly weak solid acidity. For the hydrocracking of squalene at 300 °C for 6 h under 4 MPa H2, NiMo/SiO2 formed squalane (C30H62) as a main product; NiMo/H-ZSM-5 formed C1−C4 gas hydrocarbons as main products; NiMo/H-Y and NiMo/SiO2-Al2O3 formed C5−C9 gasoline-ranged hydrocarbons as main products; NiMo/Al13-Mont formed C10−C15 aviation fuel-ranged hydrocarbons as main products. The catalysts containing NiMo and solid acids acted as bifunctional catalysts in the squalene hydrocracking reaction: squalene (C30H50) was firstly hydrogenated to squalane (C30H62) on the NiMo sites, and then the formed squalane was cracked to light hydrocarbons on the solid acids. The NiMo/Al13-Mont catalyst achieved a C10−C15 aviation fuel-ranged hydrocarbons yield of 52% for the hydrocracking of Botryococcus braunii oil at 300 °C for 6 h.



中文翻译:

在NiMo负载的催化剂上将藻类油加氢裂化为航空燃料增程烃

在间歇反应器中,由NiMo负载的催化剂将来自Bratryococcus braunii的藻油(C n H 2n-10,n = 29-34)和其模型化合物(角鲨烯,C 30 H 50)加氢裂化为轻烃。制备了多氧合[AlO 4 Al 12(OH)24(H 2 O)12 ] 7+柱状蒙脱石(表示为Al 13 -Mont),作为加氢裂化反应中NiMo催化剂的载体。铝13-Mont具有大的微孔,较大的BET表面积,高温稳定性和适当弱的固体酸度。为了使角鲨烯在300℃和4 MPa H 2下加氢裂化6小时,NiMo / SiO 2形成了角鲨烷(C 30 H 62)作为主要产物。NiMo / H-ZSM-5形成的C 1 -C 4气烃为主要产物。NiMo / HY和NiMo / SiO 2 -Al 2 O 3形成了以C 5 -C 9汽油范围的烃为主要产物。NiMo / Al 13 -Mont形成的C 10 -C 15航空燃料范围内的碳氢化合物为主要产品。含NiMo和固体酸的催化剂在角鲨烯加氢裂化反应中充当双功能催化剂:首先将角鲨烯(C 30 H 50)在NiMo位点氢化为角鲨烷(C 30 H 62),然后将形成的角鲨烷裂解为轻烃在固体酸上。NiMo / Al 13 -Mont催化剂在300°C的条件下将Botryococcus braunii油在60°C下加氢裂化,可实现52%的C 10 -C 15航空燃料范围内的碳氢化合物收率。

更新日期:2018-07-21
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