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首页> 外文期刊>New Journal of Chemistry >Methanation of bio-syngas over a biochar supported catalys
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Methanation of bio-syngas over a biochar supported catalys

机译：生物炭负载催化剂上生物合成气的甲烷化

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摘要

Biochar derived from the fast pyrolysis of lauan was activated to develop its pore structure and used as a catalyst support in the methanation of bio-syngas. The physicochemical properties of the support and the ruthenium (Ru)/activated biochar (ABC) catalysts used were characterized using multiple characterization techniques. The effect of Ru loading on bio-syngas methanation was investigated using a range of ABC supported Ru catalysts. CO conversion was low during bio-syngas methanation due to the low H2 content and was increased upon increasing the Ru loading. However, increasing the H2/(CO + CO2) ratio in bio-syngas by addition of H2 significantly improved the conversion of CO and CO2. The CO2 conversion was increased to 17.5% and 55%. CO conversion was 74% and 97% and the selectivity of CH4 reached 84% and 92% using a H2/(CO + CO2) ratio of 2 and 4, respectively.
机译：活化了劳安快速热解的生物炭被活化以形成其孔结构，并在生物合成气的甲烷化中用作催化剂载体。使用多种表征技术表征了载体和所用钌（Ru）/活化生物炭（ABC）催化剂的物理化学性质。使用一系列ABC负载的Ru催化剂研究了Ru负载对生物合成甲烷化的影响。由于氢气含量低，在生物合成甲烷化过程中，CO转化率很低，并且随着Ru含量的增加，CO转化率会提高。但是，通过添加H2来提高生物合成气中的H2 /（CO + CO2）比，可以显着提高CO和CO2的转化率。 CO2转化率提高到17.5％和55％。使用2和4的H2 /（CO + CO2）比率，CO的转化率分别为74％和97％，CH4的选择性达到84％和92％。

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