Phenol etherification with methanol to anisole over supported Cs catalysts

DENG Tian-yin; GAO Li-juan; MA Lin-ge; CHEN Jing-yun; LI Jing; GUO Xiao-fen

Volume 44 Issue 9

Sep. 2016

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Article Navigation > Journal of Fuel Chemistry and Technology > 2016 > 44(9): 1138-1144

DENG Tian-yin, GAO Li-juan, MA Lin-ge, CHEN Jing-yun, LI Jing, GUO Xiao-fen. Phenol etherification with methanol to anisole over supported Cs catalysts[J]. Journal of Fuel Chemistry and Technology, 2016, 44(9): 1138-1144.

Citation:

DENG Tian-yin, GAO Li-juan, MA Lin-ge, CHEN Jing-yun, LI Jing, GUO Xiao-fen. Phenol etherification with methanol to anisole over supported Cs catalysts[J]. Journal of Fuel Chemistry and Technology, 2016, 44(9): 1138-1144.

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Phenol etherification with methanol to anisole over supported Cs catalysts

National Institute of Clean-and-Low-Carbon Energy, Shenhua Group, Beijing 102209, China

Funds:

National High Technology Research and Development Program of China 863 program

National High Technology Research and Development Program of China 2011AA05A202

Shenhua Group Foundation CF9300140004

Received Date: 2016-02-26
Rev Recd Date: 2016-06-12

Available Online: 2021-01-23

Publish Date: 2016-09-10

Abstract

Abstract

The effect of acid and basic sites, support, cesium precursor and cesium loading on the performance of supported Cs catalysts in the etherification of phenol with methanol to anisole was investigated. The results illustrate that the cations of basic sites play an important role in the selective conversion of phenol to anisole; the basic sites give higher selectivity to anisole than the acid sites. The catalytic activity in phenol etherification decreases with the increase of the cesium ion binding energy, which is related to the support used. Moreover, the support also has an influence on the amount of strong basic sites, which is related to the selectivity to anisole; high amount of strong basic sites may promote the side reaction and decrease the selectivity to anisole. Cs/SiO₂ catalysts prepared with various precursors are different in the surface Cs/Si atomic ratio, which may also influence the catalytic activity in phenol etherification; if the cesium loading exceeds the monolayer dispersion of cesium on SiO₂, which is nearly 1.0 mmol/g, the average activity of Cs/SiO₂ in phenol etherification decreases greatly.
- supported Cs catalyst,
- activity,
- selectivity,
- phenol,
- anisol,
- etherification

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References(20)

References

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