Hydrodeoxygenation of lignin-derived phenolic compounds to hydrocarbons over Ni/SiO2-ZrO2 catalysts.
Hydrodeoxygenation of lignin-derived phenolic compounds to hydrocarbons over Ni/SiO2-ZrO2 catalysts.
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DOI：
10.1016/j.biortech.2013.02.039
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发表时间：
2013-04
影响因子：
11.4
通讯作者：
Xinghua Zhang;Qi Zhang;Tiejun Wang;Longlong Ma;Yuxiao Yu;Lungang Chen
中科院分区：
文献类型：
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作者：
Xinghua Zhang;Qi Zhang;Tiejun Wang;Longlong Ma;Yuxiao Yu;Lungang Chen
以愈创木酚为模型化合物，评价了廉价的非硫化镍基催化剂的加氢脱氧性能。采用沉淀法合成了不同Si/Zr比的SiO2-ZrO 2（SZ）复合氧化物，用Ni（NO3）2·6 H2O浸渍，在500°C下煅烧。测定愈创木酚HDO在200-340°C下的转化率和产物分布。在Ni/SZ-3存在下，愈创木酚转化率在300°C达到最大。当用真实的木质素衍生的酚类化合物在愈创木酚确定的最佳条件下进行HDO反应时，烃的总收率为62.81%。这些烃包括环己烷、烷基取代环己烷和烷基取代苯。它们具有高辛烷值，将是可替代液体运输燃料的最理想组分。
Inexpensive non-sulfided Ni-based catalysts were evaluated for hydrodeoxygenation (HDO) using guaiacol as model compound. SiO2–ZrO2(SZ), a complex oxide synthesized by precipitation method with different ratio of Si/Zr, was impregnated with Ni(NO3)2·6H2O and calcined at 500°C. Conversion rates and product distribution for guaiacol HDO at 200–340°C were determined. Guaiacol conversion reached the maximum at 300°C in the presence of Ni/SZ-3. When HDO reaction was carried out with real lignin-derived phenolic compounds under the optimal conditions determined for guaiacol, the total yield of hydrocarbons was 62.81%. These hydrocarbons were comprised of cyclohexane, alkyl-substituted cyclohexane and alkyl-substituted benzene. They have high octane number, would be the most desirable components for fungible liquid transportation fuel.