Industrially relevant ethylene trimerization catalysts and processes

IF 0.125 Applied Petrochemical Research Pub Date : 2021-09-12 DOI:10.1007/s13203-021-00279-7

Subhas Madavu Salian, Mahuya Bagui, Raksh Vir Jasra

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Abstract

1-Hexene is one of the comonomers used to produce mainly low linear density polyethylene (LLDPE) and high-density polyethylene (HDPE). The production of 1-hexene by ethylene trimerization method gained much interest in petrochemical industry due to its high selectivity towards 1-hexene in comparison to traditional ethylene oligomerization method. In literature, many catalyst systems are reported for ethylene trimerization reaction, but only few of them qualify for the commercial applications. In the present review, activity and selectivity of commercially viable catalyst systems and amount of polyethylene formed as a by-product on using these catalyst systems were discussed. Special attention is given to Chevron Phillips ethylene trimerization technology which is one of the dominant technologies in the production of 1-hexene. The challenges such as fouling issues at commercial plant due to polyethylene by-product formation were discussed and the progress made to overcome the challenges were also discussed. New generation nontoxic titanium catalysts look promising and challenges involved in commercializing these catalysts were presented in the review.

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工业相关的乙烯三聚化催化剂和工艺

1-己烯是主要用于生产低线密度聚乙烯(LLDPE)和高密度聚乙烯(HDPE)的共聚物之一。与传统的乙烯低聚法相比，乙烯三聚法生产1-己烯的选择性高，引起了石油化工行业的广泛关注。文献中报道了许多用于乙烯三聚化反应的催化剂体系，但具有商业应用价值的催化剂体系很少。本文讨论了工业上可行的催化剂体系的活性和选择性，以及使用这些催化剂体系产生的副产品聚乙烯的数量。重点介绍了雪佛龙菲利普斯乙烯三聚化技术，这是生产1-己烯的主导技术之一。讨论了聚乙烯副产品在工业装置中产生的污染问题，并讨论了克服这些问题所取得的进展。综述了新一代无毒钛催化剂的发展前景，并提出了其商业化所面临的挑战。图形抽象

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来源期刊

Applied Petrochemical Research ENGINEERING, CHEMICAL-

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0.00%

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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.