Synthesis of Methyl Glycerol Ethers over a Zeolite Catalyst in a Fixed-Bed Reactor

IF 1.3 4区 工程技术 Q3 CHEMISTRY, ORGANIC
V. O. Samoilov, Iu. I. Porukova, A. A. Kozhevnikov, V. A. Lavrentev, A. A. Porsin, M. I. Kniazeva
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Abstract

The present study investigates the regularities of synthesis of methyl glycerol ethers (MGEs) in direct intermolecular dehydration between glycerol and methanol over BEA-type zeolite. The following reaction conditions were varied during the study: temperature (140, 160, and 180°C), pressure (3.0, 5.0, and 7.0 MPa), volume hourly space velocity (0.5 and 1.0 h–1), and methanol to glycerol molar ratio (5 : 1 and 10 : 1). The compositions of the reaction mixtures prepared, as well as the isomeric compositions of the mono- and disubstituted glycerol ethers, were described. The material balances of the process were provided for each combination of operating conditions. The variations in the glycerol conversion, the yields of MGEs, the yield of dimethyl ether as a by-product, and the selectivity towards monomethyl glycerol ethers (relative to dimethyl ones) were investigated as functions of the reaction conditions.

Abstract Image

Abstract Image

在固定床反应器中使用沸石催化剂合成甲基甘油醚
摘要 本研究探讨了甘油和甲醇在 BEA 型沸石上直接分子间脱水合成甲基甘油醚 (MGE) 的规律性。研究中改变了以下反应条件:温度(140、160 和 180°C)、压力(3.0、5.0 和 7.0 兆帕)、体积时空速度(0.5 和 1.0 h-1)以及甲醇与甘油的摩尔比(5 : 1 和 10 : 1)。对制备的反应混合物的成分以及单取代和二取代甘油醚的异构体成分进行了描述。提供了每种操作条件组合下的工艺物料平衡。研究了甘油转化率、MGE 产量、副产品二甲醚产量以及甘油单甲醚(相对于二甲醚)的选择性随反应条件的变化。
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来源期刊
Petroleum Chemistry
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.
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