catalКатализ в промышленностиKataliz v promyshlennosti1816-03872413-6476LLC "KALVIS"10.18412/1816-0387-2025-3-90-97catal-1175Research ArticleКАТАЛИЗ В ХИМИЧЕСКОЙ И НЕФТЕХИМИЧЕСКОЙ ПРОМЫШЛЕННОСТИCATALYSIS IN CHEMICAL AND PETROCHEMICAL INDUSTRYВлияние температуры процесса гидроочистки дизельного топлива на сорбцию кремния на NiMo/Al2O3-катализатореThe effect of the temperature of the diesel fuel hydrotreating process on the sorption of silicon on a NiMo/Al2O3 catalystГолубевИ. С.GolubevI. S.ctls@kalvis.ruРешетниковС. И.ReshetnikovS. I.ctls@kalvis.ruДикП. П.DickP. P.ctls@kalvis.ruПетровР. В.PetrovR. V.ctls@kalvis.ruМикИ. А.MikI. A.ctls@kalvis.ruНосковА. С.NoskovA. S.ctls@kalvis.ruИнститут катализа СО РАН, НовосибирскРоссияBoreskov Institute of Catalysis, NovosibirskRussian Federation2025200620252539097Copyright © LLC "KALVIS", 20252025LLC "KALVIS"LLC "KALVIS"https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNoticehttps://www.catalysis-kalvis.ru/jour/article/view/1175

Изучено влияние температуры гидроочистки дизельного топлива на закономерности сорбции кремния на зерне NiMo/Al2O3 катализатора защитного слоя диаметром 2,5 мм. Испытания проводились на лабораторном стенде с реактором, в котором слой катализатора разделен (секционирован) на пять частей по высоте металлическими перфорированными перегородками, которые проницаемы для сырья. Это позволило получить профили концентрации кремния по высоте слоя катализатора. В качестве соединений кремния в дизельной фракции использовался декаметилциклопентасилоксан, содержание которого составляло 200 ppm. Было проведено три серии экспериментов длительностью 200 ч при температурах 315, 340 и 365 °С. В качестве сырья использовалась прямогонная дизельная фракция, содержащая добавку декаметилциклопентасилоксана как дополнительный источник кремния. Установлено, что с увеличением температуры процесса способность катализатора к поглощению кремния возрастает.

The influence of the diesel fuel hydrotreating temperature on the patterns of silicon sorption on a NiMo/Al2O3 grain of a 2.5 mm diameter catalyst has been studied. The tests were carried out on a laboratory set up with a reactor in which the catalyst bed is divided (sectioned) into five parts in height by metal perforated partitions that are permeable to raw materials. This made it possible to obtain silicon concentration profiles along the height of the catalyst layer. decamethylcyclopentasiloxane, whose content was 200 ppm, was used as silicon compounds in the diesel fraction of oil. Three series of experiments with a duration of 200 hours were conducted at temperatures of 315, 340 and 365 OC.Astraight-run dieselfractioncontaining the additionof decamethylcyclopentasiloxane as an additionalsource of silicon was usedas a raw material. It was foundthatwithincreasingprocesstemperature, the ability of the catalysttoadsorbsiliconincreases.

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The authors declare that there are no conflicts of interest present.