Ni催化剂上甲烷部分氧化制合成气反应性能与碳物种的关系

摘要：

@@ In the partial oxidation of methane (POM) to syngas, carbon deposition on the catalyst causing catalyst deactivation or reactor plugging was reported[1～3]. Our previous work showed that methane dissociation on metallic sites to H2 and NixC is an initial step of POM over Ni/Al2O3[4]. If NixC can not be consumed immediately after its formation, it has a tendency to dissolve into the nickel crystal to form carbon whiskers. The bulk carbon and carbon whiskers are more difficult to be oxidized than NixC. Therefore, prohibiting the transformation of NixC to bulk carbon and carbon whiskers can depress the formation of carbon deposition effectively.

机标关键词：催化剂、甲烷部分氧化制合成气、反应性能、碳物种、carbon deposition、partial oxidation of methane、catalyst deactivation

所属期刊栏目：20

分类号：O643(物理化学（理论化学）、化学物理学)

资助基金：国家自然科学基金29673027

在线出版日期：2005-08-25（万方平台首次上网日期，不代表论文的发表时间）

页数：共2页

页码：391-392