Transformation of corncob into furfural by a bifunctional solid acid catalyst
Transformation of corncob into furfural by a bifunctional solid acid catalyst
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双功能固体酸催化剂将玉米芯转化为糠醛
DOI：
10.1016/j.biortech.2018.12.094
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发表时间：
2019
影响因子：
11.4
通讯作者：
Huiwen Zuo
中科院分区：
文献类型：
--
作者：
Luxin Zhang;Lu Tian;Ruijun Sun;Chang Liu;Qingqing Kou;Huiwen Zuo
以三氯蔗糖为原料，经水热碳化、磺化制备了Clone键合固体酸催化剂(HSC Single Bond SO3H)，研究了粗玉米芯转化为糠醛的转化路线。考察并优化了HSC单键SO3H在选定的溶剂中的催化性能，其中在 -戊内酯/水体系中，当温度为448 K，反应时间为30 时，糠醛的产率为90.8 %(20.9 wt%)。有趣的是，从纤维素中也获得了显著的糠醛产量。此外，还考察了温度升高对高初始原料装载率的影响。以单键COOH、酚基单键OH和单键氯为结合中心，以单键为催化中心的HSC单键SO3H是一种双功能催化剂，这些官能团、反应溶剂性质和温度的协同作用使催化剂具有良好的催化性能。本研究提出的催化策略有效地将玉米芯转化为糠醛，产率较高。
A transformation route was developed for the conversion of raw corncob into furfural by a Clsingle bondbearing solid acid catalyst (HSCsingle bondSO3H) prepared by the hydrothermal carbonization and sulfonation of sucralose. The catalytic performances of HSCsingle bondSO3H in selected solvents were demonstrated and optimized, where a furfural yield of 90.8 mol% (20.9 wt%) was achieved at 448 K in 30 min in γ-valerolactone/water system. Interestingly, significant furfural yields were also obtained from cellulose. The effect of elevated temperature on furfural yield from high initial feedstock loading was also investigated. HSCsingle bondSO3H with single bondCOOH, phenolicsingle bondOH, and single bondCl as binding sites and single bondSO3H as the catalytic site on its surface presents a bifunctional catalyst, and synergic effects of these functional groups, reaction solvent property and temperature are made responsible for the good catalytic performances. The catalytic strategy proposed in this study demonstrated an effective transformation of corncob into furfural with a high yield.