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Catalytic Hydrothermal Liquefaction of Microalgae for Bio-oil Production over Silylated SBA-15 with High Hydrothermal Stability
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2017-11-30 00:00:00 , DOI: 10.1021/acs.iecr.7b03746 Qisong Lin 1 , Kejing Wu 1 , Yu Chen 1, 2 , Yin Tang 1 , Yulong Wu 1, 3 , Mingde Yang 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2017-11-30 00:00:00 , DOI: 10.1021/acs.iecr.7b03746 Qisong Lin 1 , Kejing Wu 1 , Yu Chen 1, 2 , Yin Tang 1 , Yulong Wu 1, 3 , Mingde Yang 1
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This paper mainly describes the application of silylated SBA-15 with high hydrothermal stability in catalytic hydrothermal liquefaction (HTL) of Dunaliella (D.) tertiolecta to produce bio-oil. The results indicated that selection of silylation reagent species contributes to improve hydrothermal stability of SBA-15 at 613 K through substituting hydroxyl group on SBA-15 surface. The grafting of silane on SBA-15 had an impact on pore size, wall thickness, specific surface area, pore volume, and other structure characteristics, while not influencing the ordered mesoporous pore structure. When silylated SBA-15 was used as catalyst, D. tertiolecta conversion and bio-oil yield decreased slightly due to adsorption of furan and other compounds on mesoporous structure of SBA-15. Silylated SBA-15 inhibited ammonolysis, Maillard, and other reactions, resulting in decreased acid, ester, amide, and N-containing heterocyclic content in bio-oil. Meanwhile, the content of aldehydes and ketones increases, among which furfural derivatives were the main substances (>70%). Highly selective HTL is realized over silylated SBA-15 with high hydrothermal stability.
中文翻译：
高水热稳定性的甲硅烷基化SBA-15催化微藻液化液化生产生物油
本文主要描述了具有高水热稳定性的甲硅烷基化SBA-15在杜氏盐藻（Dunaliella（d。）tertiolecta）催化水热液化（HTL）中生产生物油的应用。结果表明，甲硅烷基化试剂种类的选择有助于通过取代SBA-15表面的羟基来改善SBA-15在613 K时的水热稳定性。硅烷在SBA-15上的接枝对孔径，壁厚，比表面积，孔体积和其他结构特征有影响，而不会影响有序的中孔结构。当使用甲硅烷基化的SBA-15作为催化剂时，D。tertiolecta由于呋喃和其他化合物吸附在SBA-15的介孔结构上，因此转化率和生物油收率略有下降。甲硅烷基化的SBA-15抑制氨解，美拉德和其他反应，导致生物油中的酸，酯，酰胺和含氮杂环含量降低。同时，醛和酮的含量增加，其中糠醛衍生物为主要成分（> 70％）。在具有高水热稳定性的甲硅烷基化SBA-15上实现了高度选择性的HTL。
更新日期：2017-11-30
中文翻译：
高水热稳定性的甲硅烷基化SBA-15催化微藻液化液化生产生物油
本文主要描述了具有高水热稳定性的甲硅烷基化SBA-15在杜氏盐藻（Dunaliella（d。）tertiolecta）催化水热液化（HTL）中生产生物油的应用。结果表明，甲硅烷基化试剂种类的选择有助于通过取代SBA-15表面的羟基来改善SBA-15在613 K时的水热稳定性。硅烷在SBA-15上的接枝对孔径，壁厚，比表面积，孔体积和其他结构特征有影响，而不会影响有序的中孔结构。当使用甲硅烷基化的SBA-15作为催化剂时，D。tertiolecta由于呋喃和其他化合物吸附在SBA-15的介孔结构上，因此转化率和生物油收率略有下降。甲硅烷基化的SBA-15抑制氨解，美拉德和其他反应，导致生物油中的酸，酯，酰胺和含氮杂环含量降低。同时，醛和酮的含量增加，其中糠醛衍生物为主要成分（> 70％）。在具有高水热稳定性的甲硅烷基化SBA-15上实现了高度选择性的HTL。
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