V. P. Doronin, T. V. Bobkova, T. P. Sorokina, O. V. Potapenko, A. S. Yurtaeva, N. N. Leont’eva, T. I. Gulyaeva
{"title":"二元氧化铝-非晶铝硅酸盐体系的结构与催化性能","authors":"V. P. Doronin, T. V. Bobkova, T. P. Sorokina, O. V. Potapenko, A. S. Yurtaeva, N. N. Leont’eva, T. I. Gulyaeva","doi":"10.1134/S2070050423030030","DOIUrl":null,"url":null,"abstract":"<p>Amorphous aluminosilicate‒alumina systems are investigated by a set of physicochemical means that includes studying the NMR <sup>27</sup>Al spectra of solid samples and the acidity of catalysts via ammonia temperature-programmed desorption, a structural X-ray diffraction study, and a thermogravimetric analysis of samples. Studying the catalytic properties of samples under the conditions of cracking on a model feedstock of <i>n</i>-dodecane in a mixture with 2-methylthiophene shows that the conversion of feedstock grows in the order 100% Al<sub>2</sub>O<sub>3</sub> (AHO) > 70% Al‒Si + 30% Al<sub>2</sub>O<sub>3</sub> (AHO) > 30% Al‒Si + 70% Al<sub>2</sub>O<sub>3</sub> (AHO) > 100% Al‒Si (where AHO is the aluminum hydroxide of sulfate synthesis, and Al‒Si is an amorphous aluminosilicate). Raising the calcination temperature of samples from 500 to 700°C reduces the conversion of feedstock. Increasing the contribution from hydrogen transfer reactions leads to an increase improves the selectivity toward hydrogen sulfide and lowers the content of sulfur compounds in the liquid products.</p>","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"15 3","pages":"229 - 237"},"PeriodicalIF":0.7000,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural and Catalytic Properties of Binary Alumina‒Amorphous Aluminosilicate Systems\",\"authors\":\"V. P. Doronin, T. V. Bobkova, T. P. Sorokina, O. V. Potapenko, A. S. Yurtaeva, N. N. Leont’eva, T. I. Gulyaeva\",\"doi\":\"10.1134/S2070050423030030\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Amorphous aluminosilicate‒alumina systems are investigated by a set of physicochemical means that includes studying the NMR <sup>27</sup>Al spectra of solid samples and the acidity of catalysts via ammonia temperature-programmed desorption, a structural X-ray diffraction study, and a thermogravimetric analysis of samples. Studying the catalytic properties of samples under the conditions of cracking on a model feedstock of <i>n</i>-dodecane in a mixture with 2-methylthiophene shows that the conversion of feedstock grows in the order 100% Al<sub>2</sub>O<sub>3</sub> (AHO) > 70% Al‒Si + 30% Al<sub>2</sub>O<sub>3</sub> (AHO) > 30% Al‒Si + 70% Al<sub>2</sub>O<sub>3</sub> (AHO) > 100% Al‒Si (where AHO is the aluminum hydroxide of sulfate synthesis, and Al‒Si is an amorphous aluminosilicate). Raising the calcination temperature of samples from 500 to 700°C reduces the conversion of feedstock. Increasing the contribution from hydrogen transfer reactions leads to an increase improves the selectivity toward hydrogen sulfide and lowers the content of sulfur compounds in the liquid products.</p>\",\"PeriodicalId\":507,\"journal\":{\"name\":\"Catalysis in Industry\",\"volume\":\"15 3\",\"pages\":\"229 - 237\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2023-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis in Industry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S2070050423030030\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis in Industry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2070050423030030","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Structural and Catalytic Properties of Binary Alumina‒Amorphous Aluminosilicate Systems
Amorphous aluminosilicate‒alumina systems are investigated by a set of physicochemical means that includes studying the NMR 27Al spectra of solid samples and the acidity of catalysts via ammonia temperature-programmed desorption, a structural X-ray diffraction study, and a thermogravimetric analysis of samples. Studying the catalytic properties of samples under the conditions of cracking on a model feedstock of n-dodecane in a mixture with 2-methylthiophene shows that the conversion of feedstock grows in the order 100% Al2O3 (AHO) > 70% Al‒Si + 30% Al2O3 (AHO) > 30% Al‒Si + 70% Al2O3 (AHO) > 100% Al‒Si (where AHO is the aluminum hydroxide of sulfate synthesis, and Al‒Si is an amorphous aluminosilicate). Raising the calcination temperature of samples from 500 to 700°C reduces the conversion of feedstock. Increasing the contribution from hydrogen transfer reactions leads to an increase improves the selectivity toward hydrogen sulfide and lowers the content of sulfur compounds in the liquid products.
期刊介绍：
The journal covers the following topical areas:
Analysis of specific industrial catalytic processes: Production and use of catalysts in branches of industry: chemical, petrochemical, oil-refining, pharmaceutical, organic synthesis, fuel-energetic industries, environment protection, biocatalysis; technology of industrial catalytic processes (generalization of practical experience, improvements, and modernization); technology of catalysts production, raw materials and equipment; control of catalysts quality; starting, reduction, passivation, discharge, storage of catalysts; catalytic reactors.Theoretical foundations of industrial catalysis and technologies: Research, studies, and concepts : search for and development of new catalysts and new types of supports, formation of active components, and mechanochemistry in catalysis; comprehensive studies of work-out catalysts and analysis of deactivation mechanisms; studies of the catalytic process at different scale levels (laboratory, pilot plant, industrial); kinetics of industrial and newly developed catalytic processes and development of kinetic models; nonlinear dynamics and nonlinear phenomena in catalysis: multiplicity of stationary states, stepwise changes in regimes, etc. Advances in catalysis: Catalysis and gas chemistry; catalysis and new energy technologies; biocatalysis; nanocatalysis; catalysis and new construction materials.History of the development of industrial catalysis.
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