| Autor: |
Shoujie Ren, Shiguang Li, Naomi Klinghoffer, Miao Yu, Xinhua Liang |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Carbon Resources Conversion, Vol 2, Iss 1, Pp 85-94 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2588-9133 |
| DOI: |
10.1016/j.crcon.2019.03.002 |
| Popis: |
The effects of three different mixing methods of CuO/ZnO/Al2O3 (CZA) and HZSM-5 bifunctional catalyst on the stability for dimethyl ether (DME) synthesis from carbon dioxide (CO2) hydrogenation were investigated. When the bifunctional catalyst was prepared by method A (mixing powder without pelletization), there was no significant change in DME production and catalyst stability when the HZSM-5 loading was varied between 0.1 g and 0.5 g with a fixed CZA loading of 0.5 g,. When the bifunctional catalysts were prepared by method B (pressed into pellets of CZA and pellets of HZSM-5 and then mixed) and method C (mixed CZA and HZSM-5 powders, then pressed into pellets), the mixing methods did not initially impact CO2 conversion and had a minor effect on DME yield. However, long-term tests (100 h) indicated that the mixing method had a significant influence on the catalyst stability. Method B showed the best stability and the extent of catalyst deactivation followed the sequence of method B |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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