دورية أكاديمية
Carbon Dioxide Reforming of Methane over Ni Supported SiO2: Influence of the Preparation Method on the Resulting Structural Properties and Catalytic Activity
| العنوان: | Carbon Dioxide Reforming of Methane over Ni Supported SiO2: Influence of the Preparation Method on the Resulting Structural Properties and Catalytic Activity |
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| المؤلفون: | Hua-Ping Ren, Shao-Peng Tian, Si-Yi Ding, Gui-Qiu Huang, Min Zhu, Qiang Ma, Wen-Qi Song, Yu-Zhen Zhao, Zongcheng Miao, Wei Wang |
| المصدر: | Catalysts, Vol 10, Iss 7, p 795 (2020) |
| بيانات النشر: | MDPI AG, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Chemical technology LCC:Chemistry |
| مصطلحات موضوعية: | reforming of methane, carbon dioxide, nickel, stability, complexed impregnation, Chemical technology, TP1-1185, Chemistry, QD1-999 |
| الوصف: | Ni-C/SiO2 and Ni-G/SiO2 catalysts were prepared by a complexed-impregnation method using citric acid and glycine as complexing agents, respectively. Ni/SiO2 was also prepared by the conventional incipient impregnation method. All the catalysts were comparatively tested for carbon dioxide reforming of methane (CDR) at P = 1.0 atm, T = 750 °C, CO2/CH4 = 1.0, and GHSV = 60,000 mL·g−1·h−1. The results showed that Ni-C/SiO2 and Ni-G/SiO2 exhibited better CDR performance, especially regarding stability, than Ni/SiO2. The conversions of CH4 and CO2 were kept constant above 82% and 87% after 20 h of reaction over Ni-C/SiO2 and Ni-G/SiO2 while they were decreased from 81% and 88% to 56% and 59%, respectively, over the Ni/SiO2. The characterization results of the catalysts before and after the reaction showed that the particle size and the distribution of Ni, as well as the interactions between Ni and the support were significantly influenced by the preparation method. As a result, an excellent resistance to the coking deposition and the anti-sintering of Ni was obtained over the Ni-C/SiO2 and Ni-G/SiO2, leading to a highly active and stable CDR performance. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2073-4344 |
| Relation: | https://www.mdpi.com/2073-4344/10/7/795; https://doaj.org/toc/2073-4344 |
| DOI: | 10.3390/catal10070795 |
| URL الوصول: | https://doaj.org/article/29026732a9cc4cb793c99c1d8d4fe427 |
| رقم الأكسشن: | edsdoj.29026732a9cc4cb793c99c1d8d4fe427 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20734344 |
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| DOI: | 10.3390/catal10070795 |