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首页> 外文期刊>Кинетика и катализ >THE EFFECT OF THE NATURE OF THE SUPPORT ON CATALYTIC PROPERTIES OF RUTHENIUM SUPPORTED CATALYSTS IN PARTIAL OXIDATION OF METHANE TO SYN-GAS
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THE EFFECT OF THE NATURE OF THE SUPPORT ON CATALYTIC PROPERTIES OF RUTHENIUM SUPPORTED CATALYSTS IN PARTIAL OXIDATION OF METHANE TO SYN-GAS

机译：在甲烷部分氧化成SYN-GAS时，载体的性质对钌支持的催化剂催化性能的影响

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摘要

The effect of the carrier on catalytic properties of ruthenium supported catalysts in partial oxidation of methane (POM) was investigated. A variety of supports differed in texture and reducibility(Al_2O_3, SiO_2, TiO_2, Cr_2O_3, CeO_2 and Fe_2O_3) were used. The catalyst activity is governed by ruthenium phase formation (RuO_2 Ru~0), and it depends on redox properties of the support as well as support–ruthenium phase interaction. The activity of Ru supported catalysts decreases in the order Al_2O_3 SiO_2 > Cr_2O_3 > TiO_2 > CeO_2 > Fe_2O_3. No significant effects of the specific surface area and porosity of catalysts on the methane conversion and selectivity of CO formation were found. The selectivity of CO_2 formation (total oxidation of CH_4) under conditions of POM (a ratio of CH_4/O_2 = 2) is associated with the contribution of reducible support oxides into the catalytic performance.
机译：研究了载体对甲烷部分氧化（POM）中钌负载型催化剂催化性能的影响。使用了多种质地和还原性不同的载体（Al_2O_3，SiO_2，TiO_2，Cr_2O_3，CeO_2和Fe_2O_3）。催化剂活性受钌相形成（RuO_2 Ru〜0）的控制，它取决于载体的氧化还原性质以及载体-钌相的相互作用。 Ru负载型催化剂的活性以Al_2O_3 SiO_2> Cr_2O_3> TiO_2> CeO_2> Fe_2O_3的顺序降低。没有发现催化剂的比表面积和孔隙率对甲烷转化率和CO形成的选择性有显着影响。在POM（CH_4 / O_2的比例= 2）条件下CO_2形成的选择性（CH_4的总氧化）与可还原的载体氧化物对催化性能的贡献有关。

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