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首页> 外文期刊>The Catalyst Review Newsletter >Mesoporous Zeolite-Supported Ruthenium Nanoparticles as Highly Selective Fischer-Tropsch Catalysts for the Production of C5-C_(11) Isoparaffins...
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Mesoporous Zeolite-Supported Ruthenium Nanoparticles as Highly Selective Fischer-Tropsch Catalysts for the Production of C5-C_(11) Isoparaffins...

机译：介孔沸石负载的钌纳米粒子作为生产C5-C_（11）异链烷烃的高选择性费-托催化剂...

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摘要

The Fischer-Tropsch (FT) synthesis is key to the transformation of various non-petroleum carbon resources into clean hydrocarbon fuels or valuable chemicals from syngas. Although many catalysts have been developed, some challenges, especially selectivity control, still remain. It is known that the use of an acidic zeolite as a catalyst support, or as a co-catalyst in combination with the conventional FT catalyst, can lead to high C5-C_(11) selectivity due to hydrocracking of heavier FT products over the acid sites. In these systems, the primary hydrocarbon products formed on the active FT catalyst tend to migrate into the micropores of zeolites, where the hydrocracking occurs. The products so formed must then slowly diffuse out of the micropores leading to over-cracking and high yields of light hydrocarbons (CH4 and C2-C4 alkanes). In addition, the strong acidity of zeolites may also contribute to over-cracking of hydrocarbon products.
机译：费-托合成（FT）是将各种非石油碳资源转化为清洁的碳氢燃料或合成气中有价值的化学物质的关键。尽管已经开发了许多催化剂，但是仍然存在一些挑战，特别是选择性控制。已知使用酸性沸石作为催化剂载体，或与常规FT催化剂组合使用作为助催化剂，由于较重的FT产物在酸上的加氢裂化会导致高的C5-C_（11）选择性。网站。在这些系统中，在活性FT催化剂上形成的初级烃产物倾向于迁移到沸石的微孔中，在此发生加氢裂化。然后，如此形成的产物必须缓慢地从微孔中扩散出来，从而导致过度裂化和轻烃（CH4和C2-C4烷烃）的高收率。另外，沸石的强酸性也可能导致烃产物的过度裂化。

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