chemicallytechFine Chemical TechnologiesТонкие химические технологии2410-65932686-7575MIREA – Russian Technological University (RTU MIREA).10.32362/2410-6593-2024-19-4-273-278SPGLZHchemicallytech-2118Research ArticleTHEORETICAL BASIS OF CHEMICAL TECHNOLOGYТЕОРЕТИЧЕСКИЕ ОСНОВЫ ХИМИЧЕСКОЙ ТЕХНОЛОГИИHydroisomerization of n-hexadecane on Pt-containing silicone aluminum phosphate molecular sieves SAPO-11 with different silicon contentГидроизомеризация н-гексадекана на Pt-содержащих силикоалюмофосфатных молекулярных ситах SAPO-11 с различным содержанием кремнияhttps://orcid.org/0000-0002-2210-9520АглиуллинМ. Р.AgliullinM. R.

Аглиуллин Марат Радикович - к.х.н., старший научный сотрудник, Институт нефтехимии и катализа – обособленное структурное подразделение. Scopus Author ID 56480769400, ResearcherID M-6486-2016.

450075, Уфа, пр. Октября, 141

Marat R. Agliullin - Cand. Sci. (Chem.), Senior Researcher, Institute of Petrochemistry and Catalysis. Scopus Author ID 56480769400, ResearcherID M-6486-2016.

141, Oktyabrya pr., Ufa, 450075

maratradikovich@mail.ruhttps://orcid.org/0000-0002-2643-8233ХазиповаА. Н.KhazipovaA. N.

Хазипова Альфира Наилевна - к.х.н., старший научный сотрудник, Институт нефтехимии и катализа – обособленное структурное подразделение. Scopus Author ID 6506529764, ResearcherID AAC-3049-2022.

450075, Уфа, пр. Октября, 141

Alfira N. Khazipova - Cand. Sci. (Chem.), Senior Researcher, Institute of Petrochemistry and Catalysis. Scopus Author ID 6506529764, ResearcherID AAC-3049-2022.

141, Oktyabrya pr., Ufa, 450075

khazipova@gmail.comhttps://orcid.org/0000-0003-0478-5928АхметовА. Ф.AkhmetovA. F.

Ахметов Арслан Фаритович - д.т.н., профессор, заведующий кафедрой «Технология нефти и газа», Scopus Author ID 7004645636, ResearcherID L-4129-2017.

450064, Уфа, ул. Космонавтов, д. 1

Arslan F. Akhmetov - Dr. Sci. (Eng.), Professor, Head of the Department of Oil and Gas Technology. Scopus Author ID 7004645636, ResearcherID L-4129-2017.

1, Kosmonavtov ul., Ufa, 450064

tngrusoil@mail.ruhttps://orcid.org/0000-0002-6744-7451БаулинО. А.BaulinO. A.

Баулин Олег Александрович - к.т.н., доцент, ректор. Scopus Author ID 57189619506.

450064, Уфа, ул. Космонавтов, д. 1

Oleg A. Baulin - Cand. Sci. (Eng.), Associate Professor, Rector, Scopus Author ID 57189619506.

1, Kosmonavtov ul., Ufa, 450064

rector@rusoil.netИнститут нефтехимии и катализаРоссияInstitute of Petrochemistry and CatalysisRussian FederationУфимский государственный нефтяной технический университетРоссияUfa State Petroleum Technological UniversityRussian Federation202411092024194273278Copyright © Agliullin M.R., Khazipova A.N., Akhmetov A.F., Baulin O.A., 20242024Аглиуллин М.Р., Хазипова А.Н., Ахметов А.Ф., Баулин О.А.Agliullin M.R., Khazipova A.N., Akhmetov A.F., Baulin O.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.finechem-mirea.ru/jour/article/view/2118Objectives

Objectives. To obtain silicone aluminum phosphate molecular sieves SAPO-11 with different silicon content, to determine their pore space and acidic properties, to apply 0.5 wt % to their surface Pt, and to evaluate the effectiveness of the use of n-hexadecane in the hydroisomerization reaction.

Methods

Methods. The chemical composition of the SAPO-11 molecular sieves obtained was determined by means of X-ray fluorescence spectroscopy using a Shimadzu EDX-7000P device. The radiographs of non-calcined SAPO-11 were recorded on a Shimadzu XRD-7000 diffractometer in CuKα radiation.

Results

Results. Silicone aluminum phosphate molecular sieves SAPO-11 containing 0.5 wt % Pt on the surface were obtained from gels. As the SiO2/Al2O3 ratio increases, the number of acid centers increases. This then leads to an increase in the conversion of n-hexadecane. The selectivity of the formation of hydrocarbons of the structure decreases at the same time.

Conclusions

Conclusions. Silicone aluminum phosphate molecular sieves Pt-SAPO-11 were obtained. It was also found that the samples undergo n-hexadecane conversion.

Цель

Цель. Получить силикоалюмофосфатные молекулярные сита SAPO-11 с различным содержанием кремния, изучить свойства их пористой структуры и кислотные свойства; приготовить на их основе бифункциональные Pt-содержащие катализаторы (0.5 мас. % Pt) и оценить их каталитические свойства в реакции гидроизомеризации н-гексадекана.

Методы

Методы. Анализ химического состава синтезированных силикоалюмофосфатов SAPO-11 проводили на приборе Shimadzu EDX-7000P методом рентгенофлуоресцентной спектроскопии. Фазовый состав образцов SAPO-11 анализировали методом рентгеновской порошковой дифракции на дифрактометре Shimadzu XRD-7000 в Cu-Kα излучении.

Результаты

Результаты. Синтезированы из реакционных гелей силикоалюмофосфатные молекулярные сита SAPO-11 с различным содержанием Si и приготовлены на их основе бифункциональные Pt-содержащие катализаторы гидроизомеризации высших н-парафинов. С ростом соотношения SiO2/Al2O3 увеличивается число кислотных центров, что приводит к возрастанию конверсии н-гексадекана. Селективность образования углеводородов изо-строения при этом снижается.

Выводы

Выводы. Установлено, что соотношение SiO2/Al2O3 в исходных реакционных гелях оказывает влияние как на концентрацию кислотных центров, так и на свойства пористой структуры силикоалюмофосфатов SAPO-11. Показано, что соотношение SiO2/Al2O3 оказывает существенное влияние на каталитические свойства SAPO-11 в гидроизомеризации н-гексадекана.

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