Catalytic hydroconversion of Yinggemajianfeng lignite over difunctional Ni-Mg2Si/γ-Al2O3
| Autor: | Feng-Yun Ma, Guang-Hui Liu, Baojun Wang, Yi-Feng Chen, Fang-Jing Liu, Xian-Yong Wei, Zhi-Min Zong, Zheng Yang, Xue-Ke Li, Jing-Mei Liu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
020209 energy General Chemical Engineering Organic Chemistry Nickel tetracarbonyl Energy Engineering and Power Technology Aromaticity 02 engineering and technology Catalysis Residue (chemistry) chemistry.chemical_compound Fuel Technology 020401 chemical engineering chemistry 0202 electrical engineering electronic engineering information engineering Organic chemistry Organic matter 0204 chemical engineering Methylene |
| Zdroj: | Fuel. 249:496-502 |
| ISSN: | 0016-2361 |
| DOI: | 10.1016/j.fuel.2018.12.070 |
| Popis: | A highly active difunctional Ni-Mg2Si/γ-Al2O3 was prepared by thermally decomposing nickel tetracarbonyl onto γ-Al2O3 impregnated with Mg2Si. The non-catalytic hydroconversion (NCHC) and catalytic hydroconversion (CHC) of the extract (E) and extraction residue (ER) from Yinggemajianfeng lignite were investigated over Ni-Mg2Si/γ-Al2O3 at 240 °C in n-hexane. Benzyloxybenzene and oxybis(methylene)dibenzene were used as lignite-related model compounds to speculate the possible mechanisms for the catalytic hydrocracking and hydrogenation over Ni-Mg2Si/γ-Al2O3. As a result, more organic matter in ER was converted to soluble portion (SP) by the CHC than by the NCHC. The main SP from the CHC are chain alkanes and cyclanes, while that from the NCHC is rich in arenes and oxygen-containing organic compounds. The results indicate that Ni-Mg2Si/γ-Al2O3 effectively catalyze the hydrocracking of >Calk–O– linkages and the hydrogenation of aromatic rings in E and ER. |
| Databáze: | OpenAIRE |
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