催化剂在轻循环油加氢裂化生产BTX中的作用

IF 0.125
Georgina C. Laredo, José L. García-Gutiérrez, Patricia Pérez-Romo, Eli H. Olmos-Cerda
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引用次数: 9

摘要

从炼油原料(如轻循环油(LCO))中生产重要石化产品(如苯、甲苯和二甲苯(BTX))的催化剂在这里通过使用模型混合物和实际原料的已发表论文进行综述。四萘林和萘衍生物等模型化合物实验提供了53-55%的总BTX收率。由于不可避免的气体生成和其他C9+-烷基苯的生成,从未获得更高的收率。对于四氢萘,最好的催化剂是由Ni、CoMo、NiMo或NiSn在h - β沸石上形成的催化剂。对于萘衍生物,最好的催化剂是由W和NiW在h - β硅化沸石上形成的催化剂。在最佳试验条件下,真实饲料的总BTX产量可达35%。由于进料中存在其他类型的碳氢化合物可以竞争催化位点,因此从未达到更高的产量。在沸石h - β上由Mo、CoMo和NiMo构成的催化剂效果最好。在载体中加入ZSM-5或与其他催化剂混合后,得到了一定的改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effect of the catalyst in the BTX production by hydrocracking of light cycle oil

Effect of the catalyst in the BTX production by hydrocracking of light cycle oil

Catalysts to produce the important petrochemicals like benzene, toluene, and xylene (BTX) from refinery feedstocks, like light cycle oil (LCO) are reviewed here by covering published papers using model mixtures and real feeds. Model compounds experiments like tetralin and naphthalene derivatives provided a 53–55% total BTX yield. Higher yields were never attained due to the inevitable gas formation and other C9+-alkylbenzenes formed. For tetralin, the best catalysts are those conformed by Ni, CoMo, NiMo, or NiSn over zeolite H-Beta. For naphthalene derivatives, the best catalysts were those conformed by W and NiW over zeolite H-Beta silylated. Real feeds produced a total BTX yield of up to 35% at the best experimental conditions. Higher yields were never reached due to the presence of other types of hydrocarbons in the feed which can compete for the catalytic sites. The best catalysts were those conformed by Mo, CoMo, or NiMo over zeolite H-Beta. Some improvements were obtained by adding ZSM-5 to the support or in mixtures with other catalysts.

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来源期刊
Applied Petrochemical Research
Applied Petrochemical Research ENGINEERING, CHEMICAL-
自引率
0.00%
发文量
0
审稿时长
13 weeks
期刊介绍: Applied Petrochemical Research is a quarterly Open Access journal supported by King Abdulaziz City for Science and Technology and all the manuscripts are single-blind peer-reviewed for scientific quality and acceptance. The article-processing charge (APC) for all authors is covered by KACST. Publication of original applied research on all aspects of the petrochemical industry focusing on new and smart technologies that allow the production of value-added end products in a cost-effective way. Topics of interest include: • Review of Petrochemical Processes • Reaction Engineering • Design • Catalysis • Pilot Plant and Production Studies • Synthesis As Applied to any of the following aspects of Petrochemical Research: -Feedstock Petrochemicals: Ethylene Production, Propylene Production, Butylene Production, Aromatics Production (Benzene, Toluene, Xylene etc...), Oxygenate Production (Methanol, Ethanol, Propanol etc…), Paraffins and Waxes. -Petrochemical Refining Processes: Cracking (Steam Cracking, Hydrocracking, Fluid Catalytic Cracking), Reforming and Aromatisation, Isomerisation Processes, Dimerization and Polymerization, Aromatic Alkylation, Oxidation Processes, Hydrogenation and Dehydrogenation. -Products: Polymers and Plastics, Lubricants, Speciality and Fine Chemicals (Adhesives, Fragrances, Flavours etc...), Fibres, Pharmaceuticals.
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