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Production of liquid fuel intermediates from furfural via aldol condensation over La2O2CO3-ZnO-Al2O3 catalyst
Catalysis Communications ( IF 3.4 ) Pub Date : 2020-10-24 , DOI: 10.1016/j.catcom.2020.106207
Xiao Kong , Xiao-jie Wei , Lu-ping Li , Zhen Fang , Hanwu Lei

Aldol condensation of furfural with acetone over basic catalysts allows the production of furanic adducts 4-(2-furyl)-3-buten-2-one (FAc, C8) and 1,5-di-2-furanyl-1,4-pentadien-3-one (F2Ac, C13)) that can be transformed into high-quality diesel fuels by further hydrogenation. However, the development of efficient basic catalysts and understanding of role of basic sites with different strength are still required. In this work, monoclinic and hexagonal La2O2CO3 promoted ZnO-Al2O3 catalysts were synthesized with higher concentration of medium strength basic sites and better catalytic performance as compared with La2O3 and ZnO-Al2O3. This work demonstrated that the medium strength basic sites were especially active for aldol condensation reactions.



中文翻译:

在La 2 O 2 CO 3 -ZnO-Al 2 O 3催化剂上通过醛醇缩合从糠醛生产液体燃料中间体

在碱性催化剂上糠醛与丙酮的醛醇缩合反应可制得呋喃加合物4-(2-呋喃基)-3-丁烯-2-酮(FAc,C8)和1,5-二-2-呋喃基-1,4-戊二烯-3-酮(F 2 Ac,C13),可通过进一步加氢转化为优质柴油。但是,仍然需要开发有效的碱性催化剂并了解具有不同强度的碱性位点的作用。在这项工作中,与La 2 O 3和ZnO-Al相比,合成了单斜晶和六角形La 2 O 2 CO 3促进的ZnO-Al 2 O 3催化剂,具有较高浓度的中等强度碱性位点和更好的催化性能。2 O 3。这项工作表明中等强度的碱性位点对于醛醇缩合反应特别活跃。

更新日期:2020-11-04
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