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Performance Study of Zn-Co-Ni/AC Catalyst in Acetylene Acetylation
| Content Provider | MDPI |
|---|---|
| Author | Xu, Zhuang He, Peijie Chen, Yuhao Zhu, Mingyuan Wang, Xugen Dai, Bin |
| Copyright Year | 2021 |
| Description | Zinc acetate $(Zn(OAc)_{2}$) 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 $Zn(OAc)_{2}$/AC catalyst by adding co-catalysts to improve its activity and stability. Ternary catalysts were synthesized by adding Co and Ni to the $Zn(OAc)_{2}$/AC catalyst (Zn-Co-Ni/AC). Due to the strong synergistic effect among promoter Co, Ni, and the active component of $Zn(OAc)_{2}$, 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 $Zn(OAc)_{2}$/AC, and the activity was still as high as 30.1% after 120 h of testing. |
| Starting Page | 1271 |
| e-ISSN | 20734344 |
| DOI | 10.3390/catal11111271 |
| Journal | Catalysts |
| Issue Number | 11 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-10-22 |
| Access Restriction | Open |
| Subject Keyword | Catalysts Environmental Engineering Environmental Sciences Ternary Catalyst Acetylene Acetylation Zn-co-ni/ac |
| Content Type | Text |
| Resource Type | Article |
