Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation

Zinc acetate (Zn(OAc)<sub>2</sub>) loaded on activated carbon (AC) is the most commonly used catalyst for the industrial synthesis of vinyl acetate (VAc) using the acetylene method. The aim of this study is to optimize the Zn(OAc)<sub>2</sub>/AC catalyst by adding co-catalyst...

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Autores principales:	Zhuang Xu, Peijie He, Yuhao Chen, Mingyuan Zhu, Xugen Wang, Bin Dai
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ternary catalyst acetylene acetylation Zn-Co-Ni/AC Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/57b366de3e0f4e97aa5deb929963c1f6
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spelling	oai:doaj.org-article:57b366de3e0f4e97aa5deb929963c1f62021-11-25T17:05:16ZPerformance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation10.3390/catal111112712073-4344https://doaj.org/article/57b366de3e0f4e97aa5deb929963c1f62021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1271https://doaj.org/toc/2073-4344Zinc acetate (Zn(OAc)<sub>2</sub>) loaded on activated carbon (AC) is the most commonly used catalyst for the industrial synthesis of vinyl acetate (VAc) using the acetylene method. The aim of this study is to optimize the Zn(OAc)<sub>2</sub>/AC catalyst by adding co-catalysts to improve its activity and stability. Ternary catalysts were synthesized by adding Co and Ni to the Zn(OAc)<sub>2</sub>/AC catalyst (Zn-Co-Ni/AC). Due to the strong synergistic effect among promoter Co, Ni, and the active component of Zn(OAc)<sub>2</sub>, the resulting catalyst is capable to absorb more acetic acid and less acetylene. The stability and activity of Zn-Co-Ni/AC catalyst have been improved through electron transfer to alter the electron cloud density around the Zn element. Under the same reaction conditions, the activity of Zn-Co-Ni/AC catalyst was enhanced by 83% compared to that of Zn(OAc)<sub>2</sub>/AC, and the activity was still as high as 30.1% after 120 h of testing.Zhuang XuPeijie HeYuhao ChenMingyuan ZhuXugen WangBin DaiMDPI AGarticleternary catalystacetylene acetylationZn-Co-Ni/ACChemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1271, p 1271 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ternary catalyst acetylene acetylation Zn-Co-Ni/AC Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	ternary catalyst acetylene acetylation Zn-Co-Ni/AC Chemical technology TP1-1185 Chemistry QD1-999 Zhuang Xu Peijie He Yuhao Chen Mingyuan Zhu Xugen Wang Bin Dai Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation
description	Zinc acetate (Zn(OAc)<sub>2</sub>) loaded on activated carbon (AC) is the most commonly used catalyst for the industrial synthesis of vinyl acetate (VAc) using the acetylene method. The aim of this study is to optimize the Zn(OAc)<sub>2</sub>/AC catalyst by adding co-catalysts to improve its activity and stability. Ternary catalysts were synthesized by adding Co and Ni to the Zn(OAc)<sub>2</sub>/AC catalyst (Zn-Co-Ni/AC). Due to the strong synergistic effect among promoter Co, Ni, and the active component of Zn(OAc)<sub>2</sub>, the resulting catalyst is capable to absorb more acetic acid and less acetylene. The stability and activity of Zn-Co-Ni/AC catalyst have been improved through electron transfer to alter the electron cloud density around the Zn element. Under the same reaction conditions, the activity of Zn-Co-Ni/AC catalyst was enhanced by 83% compared to that of Zn(OAc)<sub>2</sub>/AC, and the activity was still as high as 30.1% after 120 h of testing.
format	article
author	Zhuang Xu Peijie He Yuhao Chen Mingyuan Zhu Xugen Wang Bin Dai
author_facet	Zhuang Xu Peijie He Yuhao Chen Mingyuan Zhu Xugen Wang Bin Dai
author_sort	Zhuang Xu
title	Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation
title_short	Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation
title_full	Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation
title_fullStr	Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation
title_full_unstemmed	Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation
title_sort	performance study of zn-co-ni/ac catalyst in acetylene acetylation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/57b366de3e0f4e97aa5deb929963c1f6
work_keys_str_mv	AT zhuangxu performancestudyofznconiaccatalystinacetyleneacetylation AT peijiehe performancestudyofznconiaccatalystinacetyleneacetylation AT yuhaochen performancestudyofznconiaccatalystinacetyleneacetylation AT mingyuanzhu performancestudyofznconiaccatalystinacetyleneacetylation AT xugenwang performancestudyofznconiaccatalystinacetyleneacetylation AT bindai performancestudyofznconiaccatalystinacetyleneacetylation
_version_	1718412712852062208

Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation

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