catalКатализ в промышленностиKataliz v promyshlennosti1816-03872413-6476LLC "KALVIS"10.18412/1816-0387-2024-4-65-77catal-1063Research ArticleКАТАЛИЗ В ХИМИЧЕСКОЙ И НЕФТЕХИМИЧЕСКОЙ ПРОМЫШЛЕННОСТИCATALYSIS IN CHEMICAL AND PETROCHEMICAL INDUSTRYКинетическая модель селективной тримеризации этилена в гексен-1 на хром-пиррольном катализаторKinetic model for selective trimerization of ethylene to hexene-1 on chromium-pyrrole catalystКульчаковскийП. И.KulchakovskyP. I.ctls@kalvis.ruЕрмолаевВ. С.ErmolaevV. S.ctls@kalvis.ruСаратовскихС. Л.SaratovskikhS. L.ctls@kalvis.ruФайнгольдЕ. Е.FaingoldE. E.ctls@kalvis.ruСедовИ. В.SedovI. V.ctls@kalvis.ruБиктимировА. А.BiktimirovA. A.ctls@kalvis.ruЛеневД. А.LenevD. A.ctls@kalvis.ruООО «НИОСТ», Томск; Национальный исследовательский Томский политехнический университет (ТПУ), ТомскРоссияNIOST LLC, Tomsk; National Research Tomsk Polytechnic UniversityRussian FederationООО «Оргнефтехим-Айти», ИннополисРоссияOrgneftekhim-IT LLC, InnopolisRussian FederationФедеральный исследовательский центр проблем химической физики и медицинской химии РАН (ФИЦ ПХФ и МХ РАН), ЧерноголовкаРоссияFederal Research Center of Problems of Chemical Physics and Medical Chemistry RAS, ChernogolovkaRussian FederationООО «НИОСТ», ТомскРоссияNIOST LLC, TomskRussian Federation2024180720242446577Copyright © LLC "KALVIS", 20242024LLC "KALVIS"LLC "KALVIS"https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNoticehttps://www.catalysis-kalvis.ru/jour/article/view/1063

Представлены результаты экспериментального исследования реакции тримеризации этилена в гексен-1 на хром-пиррольном катализаторе. Исследования проводились в диапазоне давлений 18–30 бар, температур 105–20 °С и концентраций катализатора 1,165–3,500 мг/л. Также в работе представлена математическая модель использованного полупроточного реактора. Предложен маршрут, описывающий наблюдаемые продукты реакции. Константы скоростей элементарных стадий процесса определены решением обратной кинетической задачи. Проанализированы зависимости кривых поглощения этилена от условий реакции – давления, температуры и концентрации катализатора, а также изменение наблюдаемого порядка реакции по этилену с течением времени эксперимента.

This works presents a kinetic model for trimerization of ethylene to hexene-1 on a chromium-pyrrole catalyst. Within the framework of the kinetic model, a scheme of elementary reactions is suggested for description of the reactions principles. The rate constants of the process stages, components orders of reactions and activation energies reflecting the temperature dependence of reaction stages have been determined. The model results are in good agreement with experimental data in the range of pressures 18-30 bar, temperatures 105-120℃ and catalyst concentrations 1,165-3,500 mg/l.

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