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Effective Catalytic Delignification and Fractionation of Lignocellulosic Biomass in Water over Zn3V2O8 Mixed Oxide.
ACS Omega ( IF 4.1 ) Pub Date : 2019-12-31 , DOI: 10.1021/acsomega.9b02159
Khadija Khallouk 1, 2, 3 , Abderrahim Solhy 3 , Abdelhak Kherbeche 2 , Eric Dubreucq 1 , Lamfeddal Kouisni 3 , Abdellatif Barakat 1, 3
Affiliation  

The conversion of poplar wood biomass to highly value-added chemicals and molecular building blocks was achieved by using the dispersed mixed oxide Zn3V2O8 (ZVO) in water under 100 kPa of 10% O2/N2 at 160, 180, and 200 °C for 4 h. This nanostructured mixed oxide was prepared via the precipitation process and then characterized by several techniques. The results showed that this mixed oxide has interesting catalytic properties and is a versatile catalyst for biomass delignification and lignin and hemicellulose depolymerization. ZVO exhibited high activity on poplar biomass delignification and fractionation (degree of delignification > 97%) and lignin and holocellulose conversion with high yield into aromatic and furan compounds (80 mg/g initial wood at 200 °C), with high selectivities for 5-hydroxymethylfurfural (HMF) (25 mg/g of initial wood), vanillin, and syringaldehyde.

中文翻译:

Zn3V2O8混合氧化物对水中木质纤维素生物质的有效催化脱木素和分级分离。

杨木木材生物量向高附加值化学物质和分子构件的转化是通过在100 kPa的10%O2 / N2下于160、180和200°C下于100 kPa的水中使用Zn3V2O8(ZVO)分散的混合氧化物实现的,实现了4 H。该纳米结构的混合氧化物是通过沉淀过程制备的,然后通过多种技术进行表征。结果表明,该混合氧化物具有令人感兴趣的催化性能,是用于生物质脱木质素以及木质素和半纤维素解聚的通用催化剂。ZVO对杨树生物量的脱木质素和分馏(脱木质素度> 97%)以及木质素和全纤维素转化具有很高的活性,并能高产率地转化为芳族化合物和呋喃化合物(在200°C时初始木材为80 mg / g),对5-的选择性很高。羟甲基糠醛(HMF)(25 mg / g初始木材),
更新日期:2020-01-14
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