| 史克英,徐恒泳.天然气和二氧化碳转化制合成气的研究：Ⅲ.催化剂抗积炭性能[J].分子催化,1995,(3):161-164 |
| 天然气和二氧化碳转化制合成气的研究：Ⅲ.催化剂抗积炭性能 |
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| DOI： |
| 中文关键词: 合成气 催化剂 抗积炭性能 天然气 二氧化碳 |
| 英文关键词:Reforming natural gas with CO_2, Synthesis gas. Ni/Al_2O_3 catalyst, Resistance to carbon deposition. |
| 基金项目:国家自然科学基金 |
| 史克英 徐恒泳 |
| 哈尔滨师范大学化学系 |
| 摘要点击次数: 1423 |
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| 中文摘要: |
| 天然气和二氧化碳转化制合成气的研究Ⅲ．催化剂抗积炭性能史克英，徐恒泳，商永臣，范业梅，徐国林（哈尔滨师范大学化学系，哈尔滨１５００８０）关键词天然气二氧化碳转化，合成气，催化剂，抗积炭性能．在第十届国际催化会议上，催化专家提出了甲烷二氧化碳转化制合成... |
| 英文摘要: |
| The catalyst resistance to carbon deposition for reforming natural gas with carbon dioxide to produce synthesis gas was studied by using a fixed-bed pulse reactor chromatography as well as XRD, TPR, XPS and TEM techniques. It was found that, the additions of rare earth RE_2O_3 and MGO to Ni/Al_2O_3 catalyst would decrease the activity of carbon deposition of CH_4 and increase the activity of carbon eliminati on by CO_2. This would increase the catalytic resistance property to carbon deposition increase of d-electron density of the surface Ni atoms. A model of carbon due to deposition on the catalyst was put forward. The catalytic resistance to carbon deposition would be increased greatly by increasig the Ni dispersion and increasing the interaction between the Ni active site and the carrier. The activity of Ni/Al_2O_3 catalyst promoted by RE_2O_3 and MgO did not diminish at all during 800 h on stream of CO_2/natural gas=2.4/1 at 1023 K or CO2/natural gas=1.4/1 at 1123 K. This indicated that the Ni/ Al_2O_3 catalyst promoted by RE_2O_3 and MgO not only has a high activity and selectivity, but also has a high stability and a good resistance to carbon deposition for reforming natural gas with carbon dioxide. |
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