Dehydration of Ethylene Glycol Monoethyl Ether to Ethyl Vinyl Ether over K3PO4/SiO2 Catalyst: the Effect of Surface Acid-Base Properties

被引：0

作者：

Tao, Huiqin ^{[1
]}

Chen, Chenju ^{[1
]}

Lu, Decheng ^{[2
]}

Wang, Yihang ^{[1
]}

Cui, Lingyun ^{[1
]}

Ji, Xingge ^{[1
]}

Zhang, Chunlei ^{[1
]}

机构：

[1] Shanghai Normal Univ, Coll Chem & Mat Sci, Shanghai 200234, Peoples R China

[2] Northeast Petr Univ, Coll Chem & Chem Engn, Daqing 163318, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2025年

关键词：

POTASSIUM PHOSPHATE; SOLID BASE; PERFORMANCE; ALKYLATION; SIO2;

D O I：

10.1021/acs.iecr.4c03981

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This research introduces a sustainable method for synthesizing vinyl ether alkyl compounds through the gas-phase dehydration of coal-based ethylene glycol monoethyl ether (EGEE) over a silica-supported potassium phosphate (K3PO4/SiO2) catalyst. Under optimized conditions of 440 degrees C, 1 atm pressure, and a weight hourly space velocity (WHSV) of 0.56 h-1, the 5K3PO4/SiO2 catalyst achieved an EGEE conversion of 88% and an ethyl vinyl ether (EVE) selectivity of 76%. Characterization techniques including X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) analysis, thermogravimetric analysis (TGA), temperature-programmed desorption (TPD), inductively coupled plasma (ICP), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM) revealed that the exceptional performance of the K3PO4/SiO2 catalyst is attributed to its well-balanced surface acid-base properties, which are critical for the efficient dehydration of EGEE to EVE.

引用

页码：6312 / 6320

页数：9

共 29 条

[1]

Matake R., Adachi Y., Matsubara H., Synthesis of vinyl ethers of alcohols using calcium carbide under superbasic catalytic conditions (KOH/DMSO), Green Chem., 18, pp. 2614-2618, (2016)

[2]

Winternheimer D., Shade R., Merlic C., Methods for vinyl ether synthesis, Synthesis, 2010, pp. 2497-2511, (2010)

[3]

Okamura T., Koyamada K., Kanazawa J., Miyamoto K., Iwabuchi Y., Uchiyama M., Kanoh N., Synthetic access to gem-difluoropropargyl vinyl ethers and their application to propargyl Claisen rearrangement, J. Org. Chem., 86, pp. 1911-1924, (2021)

[4]

Domzalska-Pieczykolan A., Funes-Ardoiz I., Furman B., Bolm C., Selective approaches to α- and β-arylated vinyl ethers, Angew. Chem., Int. Ed., 61, (2022)

[5]

Teong S.P., Chua A., Deng S., Li X., Zhang Y., Direct vinylation of natural alcohols and derivatives with calcium carbide, Green Chem., 19, pp. 1659-1662, (2017)

[6]

Deng X., Song M., Li Z., Depletable and Non-renewable Energy Resources: Coal and Oil Resources, Environmental and Natural Resources Economics, pp. 263-301, (2024)

[7]

Zhang Z., Ding Q., Feng G., Qi T., Guo Y., Wang Y., Wang H., Gao X., A novel economic benefit calculation modeling applying to coal mining, Environ. Dev. Sustainability, 26, pp. 15307-15331, (2024)

[8]

Reppe W., Wolff W., Vinyl Ether, (1935)

[9]

Zhang M., Zhou B., Chen Y., Gong H., Mechanism and safety analysis of acetylene decomposition explosion: A combined ReaxFF MD with DFT study, Fuel, 327, (2022)

[10]

Verma G., Ren J., Kumar S., Ma S., New paradigms in porous framework materials for acetylene storage and separation, Eur. J. Inorg. Chem., 2021, pp. 4498-4507, (2021)

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