increases. This is a demonstration of the outstanding com- bination of both HYD and HDS activity, allowing deep des- ulphurisation, especially in the diesel fraction, while also taking advantage of the high hydrogenation activity to pro- mote liquid swell. There are two important unit responses to consider when designing a customised catalyst load: diesel product sulphur specification and volume swell vs conversion. These targets are important parameters to consider when evaluating the profitability of the installed catalysts system, as they are not only enough and/or important to achieve those targets, but also to sustain over the cycle with a stable catalysts system. Without having the proper balance of activity and stability provided by the selected catalyst, it could be a challenge to achieve the specified product targets and specifications. Conclusion TK-594 HyBRIM is a CoNiMo trimetallic formulation that demonstrates excellent hybrid properties for both DDS and HYD routes, like pure CoMo and pure NiMo catalysts. The trimetallic formulation technology, in combination with advanced TEM technology, allows the production of highly dispersed nano MoS 2 edge structures with minimised excessive stacking, leading to both higher desulphurisa- tion and hydrogenation activity. Furthermore, the catalyst exhibits a very low deactivation rate in the industrial units, resulting in the extension of the operating window for max- imum volume swell and maximum profit as well as a long and very stable cycle length.
BRIM and HyBRIM are marks of Topsoe A/S. References 1 Topsøe H, Hydrotreating Catalysts, Catalysis – Science and Technology, 11, Springer Verlag, 1996. 2 Topsøe H, The role of Co-Mo-S Type Structures in hydrotreating cat- alysts, Applied Catalysts A: General, 2007. 3 Maldonado R, Pietro M, Rodriguez P, Boosting mild hydrocracking performance, PTQ , Q3, 2020. 4 Maldonado R, Singh, Manzano D, Enhancing hydrocracking unit potential with pretreat and tailored hydrocracking catalysts, PTQ , Q3, 2021. 5 Zeuthen R, Improved chemistry, Hydrocarbon Engineering , Nov 2020. Xavier E Ruiz Maldonado is a Technical Service Manager within Topsoe North America with more than 17 years of experience in hydro- treating and hydrocracking industrial technical assistance and back- ground in this business for both Americas and European regions. He holds an MSc in chemical engineering from Simon Bolivar University in Venezuela and a petroleum studies degree from French Institute of Petroleum. Email: xerm@topsoe.com Ryan A Jesina is a Senior Technical Service Engineer within Topsoe North America with nine years of refinery experience, including hydro - processing applications, process design, and industrial technical assis- tance within the refining field. He holds a BSc in chemical engineering from Louisiana State University, USA. Email: raje@topsoe.com Michal Lutecki is Principal Scientist within Topsoe R&D with more than 10 years of experience in developing hydroprocessing catalysts for both fossil fuels and renewables applications. He holds a PhD in chemical technology from the University of Leipzig, Germany. Email: milu@topsoe.com
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