Formation process of organic template-free chabazite zeolite membrane and its separation performance of water-rich mixtures

Zhu, Binghua; Liu, Yu; Yan, Zhicheng; Yang, Zhengquan; Wu, Xiaowei; Gao, Tian; Li, Yuqin; Zhang, Fei; Chen, Xiangshu; Kita, Hidetoshi

doi:10.1016/j.micromeso.2022.112085

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Characterization and Pv Test1

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Cited by 8 publications

(2 citation statements)

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“…It can be seen that sample 18 has the very subtle D6R vibration range compared to sample 17. Sample 19 with the synthetic time of 20 h has the characteristic vibration of double-6 rings (D6R) at 640 cm −1 for zeolite CHA [61] . With increasing the recrystallization time to 28 h, the characteristic bands of zeolite CHA structure are getting more clearly for sample 20.…”

Section: Resultsmentioning

confidence: 99%

Ultrasonic-pretreated hydrothermal synthesis of less dense zeolite CHA from the transformation of zeolite T

Yin,

Liu,

Han

et al. 2023

Ultrasonics Sonochemistry

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Section: Resultsmentioning

confidence: 99%

Ultrasonic-pretreated hydrothermal synthesis of less dense zeolite CHA from the transformation of zeolite T

Yin,

Liu,

Han

et al. 2023

Ultrasonics Sonochemistry

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“…PV performances of zeolite membranes toward a 90 wt% n-BuOH/H 2 O mixture at 348 K were tested by a previously reported PV experimental device [28][29][30][31]33]. The compositions of the feed and permeate were analyzed using a gas chromatograph.…”

Section: Characterization and Pv Testmentioning

confidence: 99%

Improved Esterification of Citric Acid and n-Butanol Using a Dense and Acid-Resistant Beta Zeolite Membrane

et al. 2022

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In this work, a dense and acid-resistant beta zeolite membrane was applied to improve the esterification of citric acid and n-butanol, for the first time. Through the continuous removal of the by-product water via pervaporation (PV), the conversion of citric acid was significantly enhanced from 71.7% to 99.2% using p-Toluenesulfonic acid (PTSA) as catalyst. PTSA was a well-known strong acid, and the membrane kept almost no change after PV-esterification, indicating the superior acid resistance of beta zeolite membrane. Compared to the use of acid-resistant MOR zeolite membrane by PV-esterification, a consistently higher conversion of citric acid was obtained using a high-flux beta zeolite membrane. The results showed that high water permeation on the beta zeolite membrane, with good acid resistance, had a strong promoting effect on esterification, leading to an improved conversion. In addition, the citric acid conversion of 97.7% could still be achieved by PV-esterification at a low reaction temperature of 388 K.

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Adsorption of Methylene Blue from High-Salt Wastewater by Construction and Demolition Waste-Based Chabazite

Song,

Ding,

Zhang

et al. 2023

Water Air Soil Pollut

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Formation process of organic template-free chabazite zeolite membrane and its separation performance of water-rich mixtures

Cited by 8 publications

References 41 publications

Ultrasonic-pretreated hydrothermal synthesis of less dense zeolite CHA from the transformation of zeolite T

Ultrasonic-pretreated hydrothermal synthesis of less dense zeolite CHA from the transformation of zeolite T

Improved Esterification of Citric Acid and n-Butanol Using a Dense and Acid-Resistant Beta Zeolite Membrane

Adsorption of Methylene Blue from High-Salt Wastewater by Construction and Demolition Waste-Based Chabazite

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