Engineering Zeolites for Catalytic Cracking to Light Olefins
Engineering Zeolites for Catalytic Cracking to Light Olefins
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DOI：
10.1021/acscatal.7b02011
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发表时间：
2017-10-01
期刊：
影响因子：
12.9
通讯作者：
Yilmaz, Bilge
中科院分区：
文献类型：
--
作者：
Blay, Vincent;Louis, Benoit;Yilmaz, Bilge
丙烯是石化工业的关键原料，近年来其需求强劲增长，甚至比乙烯的需求增长更快。丙烯的供应有限，因此人们正在努力优化其生产。在第一套催化裂化装置（FCC）问世75周年之际，我们分析了在沸石的理解和开发方面取得的一些最新进展，这些进展旨在通过催化裂化增加作为石化原料的轻质烯烃的产量。我们讨论了一组选定的沸石工程新兴策略，这些策略具有很大的研究前景，并且我们认为在不久的将来可能会对该行业产生影响。这些策略包括通过自下而上和自上而下的方法实现的晶体工程和分级方面的进展、复合材料、在不同可用晶体学位置之间对活性位点位置的调控，以及重要的是，如何表征这些改性及其对催化的影响。最后，我们考察了哪些进展实际上正在被应用到当前的工业实践中，并对满足轻质烯烃需求的沸石研究的未来进行了思考并得出结论。
Propene is a key building block for the petrochemical industry whose demand is increasing strongly in recent years, even faster than that of ethene. The availability of propene is limited, and therefore, efforts to optimize its production are being pursued. On the occasion of the 75th anniversary of the first FCC unit, we analyze some recent advances that have been achieved in the understanding and development of zeolites aiming to increase the production of light olefins as petrochemical building blocks by means of catalytic cracking. We discuss a selected group of emerging strategies in zeolite engineering that have great prospects for research and that we consider could impact the sector in the near future. These include advances in crystal engineering and hierarchization achieved through bottom-up and top-down approaches, composite materials, tuning of the location of active sites among the different crystallographic positions available, and, importantly, how to characterize these modifications and their impact on the catalysis. Finally, we survey what advances are actually being implanted into the current industrial practice and conclude with a reflection on the future of zeolite research to satisfy light olefin demand.