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Mesostructured Catalysts Based on the BEA Topology for Olefin Oligomerisation
ChemCatChem ( IF 3.8 ) Pub Date : 2018-01-26 , DOI: 10.1002/cctc.201701597
Andreia F. Silva 1 , Auguste Fernandes 2 , Patrícia Neves 1 , Margarida M. Antunes 1 , Sílvia M. Rocha 3 , Maria F. Ribeiro 2 , Carlos M. Silva 1 , Anabela A. Valente 1
Affiliation  

Mesostructured solid acid catalysts based on the BEA topology were explored for olefin oligomerisation, which is an attractive synthetic route to produce clean, sulfur‐free fuels or fuel additives with reduced aromatics content. Specifically, the oligomerisation of 1‐butene, which may derive from (non‐)renewable sources, was performed under high pressure and continuous‐flow operation. The mesostructured catalysts consisted of a hierarchical zeotype (BEA‐hier) synthesized by a one‐pot approach using a dual‐function template and, on the other hand, a composite (BEA/TUD) possessing zeolite nanocrystallites embedded in a mesoporous matrix synthesised under hydrothermal conditions. The influence of the material properties, catalyst activation temperature and reaction parameters were investigated by combining characterisation, two‐dimensional gas chromatography combined with time‐of‐flight mass spectrometry (ToFMS) studies, and catalytic studies. The catalytic performances were compared to those of commercial nano/microcrystalline zeolites of different topologies and COD‐900 (type of catalyst for the conversion of olefins to distillates process). BEA‐hier performed superiorly in terms of conversion and space–time yields to diesel cut products.

中文翻译:

基于BEA拓扑的介孔催化剂用于烯烃低聚

探索了基于BEA拓扑的介观结构的固体酸催化剂用于烯烃低聚,这是生产清洁的,无硫的燃料或降低芳烃含量的燃料添加剂的有吸引力的合成途径。具体而言,1-丁烯的低聚反应可能是在(高压)可再生资源中进行的,是在高压和连续流动条件下进行的。介孔结构催化剂由通过双重功能模板通过单锅法合成的分层沸石型(BEA-hier)组成,另一方面,具有嵌入纳米孔结构中的沸石纳米晶体的复合材料(BEA / TUD)具有沸石纳米晶体水热条件。结合表征研究了材料性能,催化剂活化温度和反应参数的影响,二维气相色谱结合飞行时间质谱(ToFMS)研究和催化研究。将其催化性能与不同拓扑结构的商业纳米/微晶沸石和COD-900(用于将烯烃转化为馏出物的催化剂类型)进行了比较。BEA-hier在转化为柴油切割产品的时空产量方面表现出色。
更新日期:2018-01-26
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