凝胶制备条件对 SAPO-11 分子筛结晶的影响

IF 1.3 4区工程技术 Q3 CHEMISTRY, ORGANIC

Petroleum Chemistry Pub Date : 2024-05-14 DOI:10.1134/S0965544124010092

M. R. Agliullin, D. V. Serebrennikov, A. N. Khazipova, R. Z. Kuvatova, B. I. Kutepov

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引用次数: 0

摘要

摘要综合利用 XRD、27Al 和 31P MAS NMR、SEM、TEM、N2 低温吸附-解吸以及吸附吡啶的红外光谱，研究了凝胶制备条件对从凝胶中结晶出的 SAPO-11 分子筛性能的影响。结果表明，在凝胶制备过程中，可以通过调整初始成分的混合顺序来控制 SAPO-11 分子筛的晶体形态和二次孔隙的特性。合成的微多孔 SAPO-11 样品在正十六烷的加氢异构化过程中表现出很高的选择性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effects of Gel Preparation Conditions on the Crystallization of SAPO-11 Molecular Sieves

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Effects of Gel Preparation Conditions on the Crystallization of SAPO-11 Molecular Sieves

Using a combination of XRD, ²⁷Al and ³¹P MAS NMR, SEM, TEM, N₂ low-temperature adsorption–desorption, and IR spectroscopy of adsorbed pyridine, the effects of gel preparation conditions on the properties of the SAPO-11 molecular sieves crystallized from the gels were investigated. It was demonstrated that the crystal morphology and the characteristics of secondary pores of SAPO-11 molecular sieves can be controlled by adjusting the sequence in which the initial components are mixed during gel preparation. The synthesized micro–mesoporous SAPO-11 samples exhibited high selectivity in the hydroisomerization of n-hexadecane.

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来源期刊

Petroleum Chemistry 工程技术-工程：化工

CiteScore

2.50

自引率

21.40%

发文量

102

审稿时长

6-12 weeks

期刊介绍： Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas. Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.