Raney-Nickel Catalyst Deactivation in Supercritical Water Gasification of Ethanol Fermentation Stillage and its Mitigation
Raney-Nickel Catalyst Deactivation in Supercritical Water Gasification of Ethanol Fermentation Stillage and its Mitigation
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乙醇发酵釜馏物超临界水气化中雷尼镍催化剂失活及其缓解
DOI：
10.1007/s11244-014-0272-x
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发表时间：
2014
影响因子：
3.6
通讯作者：
Masaharu Komiyama
中科院分区：
文献类型：
--
作者：
Hung Thanh Nguyen;Haimeng Lu;Eiichiro Kobayashi;Takahiro Ishikawa;Masaharu Komiyama
乙醇发酵釜液（蛋白质生物质的模型原料）在超临界水气化过程中雷尼镍催化剂失活的主要原因是其氧化。设计并实施了在反应过程中避免催化剂氧化的方法，使得Raney-Ni催化剂的寿命（最初在14小时内失活至最小活性）在180小时的操作后保持约55%的碳转化率。
Major cause of a Raney-Ni catalyst deactivation in supercritical water gasification of ethanol fermentation stillage, a model feedstock for proteinaceous biomass, was identified to be its oxidation. Ways to circumvent catalyst oxidation during the reaction were devised and implemented, resulting in a life of Raney-Ni catalyst, originally deactivated to minimal activity within 14 h, to maintain around 55 % carbon conversion after 180 h of operation.