Nanosized Catalysts in the Process of Hydrogenating Acetylene
| Autor: | S. K. Tanirbergenova, N. K. Zhylybayeva, S. Zh. Tairabekova, D. A. Tugelbayeva, G. M. Naurzbayeva, G. M. Moldazhanova, B. A. Mansurov |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Eurasian Chemico-Technological Journal, Vol 20, Iss 3, Pp 249-254 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1562-3920 2522-4867 |
| DOI: | 10.18321/ectj730 |
| Popis: | Hydrogenating process of the acetylene to ethylene using automated flow catalytic installation at nanoscaled catalysts Ni, Co and carriers at a pressure of 5 atm was studied. The actions of carriers and nanosized catalysts during hydrogenation reaction of acetylene to ethylene at low temperatures in the range from 50–120 °С were analyzed. With ratio of С2Н2:Н2 being equal to (1:2), at 80 °С the aluminum oxide carrier exhibits an activity, conversion of acetylene makes up 70%, when using zeolite 3A it is 63%. When the temperature rises to 120 °С, the aluminum activity is decreasing and conversion is 53%. However, zeolite exhibits its activity at high temperatures, at a temperature of 120 °С conversion of acetylene reaches to 73.5%. It is shown that with increasing of hydrogen ratio, the ethylene yield increases from 5 to 10.7% using catalyst 5% Ni/3A. In addition, in reaction of acetylene hydrogenation there are not formed waste products. For this process, the optimum reaction temperature is 80 °С, feedstock ratio (1:3) is positive, where the ethylene yield increased up to 16.7% and at catalyst to 5% Co/3A. |
| Databáze: | Directory of Open Access Journals |
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