Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-Butene

Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-Butene

Solvent-free synthesis methodology is a promising technique for the green and sustainable preparation of zeolites materials. In this work, a solvent-free route was developed to synthesize SAPO-34 zeolite. The characterization results indicated that the crystal size, texture properties, acidity and S...

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Main Authors: Xia Xiao, Zhongliang Xu, Peng Wang, Xinfei Liu, Xiaoqiang Fan, Lian Kong, Zean Xie, Zhen Zhao
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Catalysts
Subjects:
solvent-free synthesis
SAPO-34
SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratios
1-Butene catalytic cracking
light olefins
Online Access:https://www.mdpi.com/2073-4344/11/7/835
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spelling doaj-0a25ddc540d04bf08e17be88fd849c9b2021-07-23T13:34:21ZengMDPI AGCatalysts2073-43442021-07-011183583510.3390/catal11070835Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-ButeneXia Xiao0Zhongliang Xu1Peng Wang2Xinfei Liu3Xiaoqiang Fan4Lian Kong5Zean Xie6Zhen Zhao7Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, ChinaSolvent-free synthesis methodology is a promising technique for the green and sustainable preparation of zeolites materials. In this work, a solvent-free route was developed to synthesize SAPO-34 zeolite. The characterization results indicated that the crystal size, texture properties, acidity and Si coordination environment of the resulting SAPO-34 were tuned by adjusting the SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratio in the starting mixture. Moreover, the acidity of SAPO-34 zeolite was found to depend on the Si coordination environment, which was consistent with that of SAPO-34 zeolite synthesized by the hydrothermal method. At an SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio of 0.6, the SP-0.6 sample exhibited the highest conversion of 1-butene (82.8%) and a satisfactory yield of light olefins (51.6%) in the catalytic cracking of 1-butene, which was attributed to the synergistic effect of the large SBET (425 m<sup>2</sup>/g) and the abundant acid sites (1.82 mmol/g). This work provides a new opportunity for the design of efficient zeolite catalysts for industrially important reactions.https://www.mdpi.com/2073-4344/11/7/835solvent-free synthesisSAPO-34SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratios1-Butene catalytic crackinglight olefins
collection DOAJ
language English
format Article
sources DOAJ
author Xia Xiao
Zhongliang Xu
Peng Wang
Xinfei Liu
Xiaoqiang Fan
Lian Kong
Zean Xie
Zhen Zhao
spellingShingle Xia Xiao
Zhongliang Xu
Peng Wang
Xinfei Liu
Xiaoqiang Fan
Lian Kong
Zean Xie
Zhen Zhao
Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-Butene
Catalysts
solvent-free synthesis
SAPO-34
SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratios
1-Butene catalytic cracking
light olefins
author_facet Xia Xiao
Zhongliang Xu
Peng Wang
Xinfei Liu
Xiaoqiang Fan
Lian Kong
Zean Xie
Zhen Zhao
author_sort Xia Xiao
title Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-Butene
title_short Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-Butene
title_full Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-Butene
title_fullStr Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-Butene
title_full_unstemmed Solvent-Free Synthesis of SAPO-34 Zeolite with Tunable SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Ratios for Efficient Catalytic Cracking of 1-Butene
title_sort solvent-free synthesis of sapo-34 zeolite with tunable sio<sub>2</sub>/al<sub>2</sub>o<sub>3</sub> ratios for efficient catalytic cracking of 1-butene
publisher MDPI AG
series Catalysts
issn 2073-4344
publishDate 2021-07-01
description Solvent-free synthesis methodology is a promising technique for the green and sustainable preparation of zeolites materials. In this work, a solvent-free route was developed to synthesize SAPO-34 zeolite. The characterization results indicated that the crystal size, texture properties, acidity and Si coordination environment of the resulting SAPO-34 were tuned by adjusting the SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratio in the starting mixture. Moreover, the acidity of SAPO-34 zeolite was found to depend on the Si coordination environment, which was consistent with that of SAPO-34 zeolite synthesized by the hydrothermal method. At an SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio of 0.6, the SP-0.6 sample exhibited the highest conversion of 1-butene (82.8%) and a satisfactory yield of light olefins (51.6%) in the catalytic cracking of 1-butene, which was attributed to the synergistic effect of the large SBET (425 m<sup>2</sup>/g) and the abundant acid sites (1.82 mmol/g). This work provides a new opportunity for the design of efficient zeolite catalysts for industrially important reactions.
topic solvent-free synthesis
SAPO-34
SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratios
1-Butene catalytic cracking
light olefins
url https://www.mdpi.com/2073-4344/11/7/835
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AT xinfeiliu solventfreesynthesisofsapo34zeolitewithtunablesiosub2subalsub2subosub3subratiosforefficientcatalyticcrackingof1butene
AT xiaoqiangfan solventfreesynthesisofsapo34zeolitewithtunablesiosub2subalsub2subosub3subratiosforefficientcatalyticcrackingof1butene
AT liankong solventfreesynthesisofsapo34zeolitewithtunablesiosub2subalsub2subosub3subratiosforefficientcatalyticcrackingof1butene
AT zeanxie solventfreesynthesisofsapo34zeolitewithtunablesiosub2subalsub2subosub3subratiosforefficientcatalyticcrackingof1butene
AT zhenzhao solventfreesynthesisofsapo34zeolitewithtunablesiosub2subalsub2subosub3subratiosforefficientcatalyticcrackingof1butene
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