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磁性碳基固体酸催化剂的制备及其水解工艺优化研究
Abstract
采用共沉淀法合成磁性Fe_3O_4,通过碳化磺化制备核壳结构的磁性固体酸催化剂Fe_3O_4/C-SO_3H,并利用透射电子显微镜(TEM)、傅里叶变换红外光谱仪(FT-IR)、X射线衍射(XRD)、振动样品磁强计(VSM)、元素分析等手段对催化剂特性进行表征分析。以催化玉米芯水解所得的木糖得率为评价指标,对磁性固体酸催化剂催化玉米芯水解工艺条件进行优化研究,得出最佳条件为反应时间10 h、反应温度140 ℃、催化剂用量1.5 g、固液比(g/mL)2∶50(玉米芯含量为0.5 g),此时木糖得率为51.01%。研究认为,磁性固体酸催化剂催化木质纤维素水解的反应过程为酸催化和吸附过程共同作用,木质纤维素是分级解聚逐步转化,利用两步操作能够最大程度的水解木质纤维素。
Country
China (People's Republic of)
Related Organizations
- Chinese Academy of Science (中国科学院) China (People's Republic of)
- Chinese Academy of Science (中国科学院) China (People's Republic of)
Keywords
saccharification, 催化剂制备, biomass, hydrolysis, 水解作用, 糖化作用, 磁性固体酸, 生物质, catalyst preparation, magnetic solid acid
saccharification, 催化剂制备, biomass, hydrolysis, 水解作用, 糖化作用, 磁性固体酸, 生物质, catalyst preparation, magnetic solid acid
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).0 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average

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citations
Citations provided by BIP!
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
popularity
Popularity provided by BIP!
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
0
Average
Average
Average
Related to Research communities
Energy Research