Phosphoric acid-activated wood biochar for catalytic conversion of starch-rich food waste into glucose and 5-hydroxymethylfurfural

被引：125

作者：

Cao, Leichang ^{[1
,2
]}

Yu, Iris K. M. ^{[1
]}

Tsang, Daniel C. W. ^{[1
]}

Zhang, Shicheng ^{[2
]}

Ok, Yong Sik ^{[3
,4
]}

Kwon, Eilhann E. ^{[5
]}

Song, Hocheol ^{[5
]}

Poon, Chi Sun ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China

[2] Fudan Univ, Shanghai Key Lab Atmospher Particle Pollut & Prev, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China

[3] Korea Univ, OJERI, Korea Biochar Res Ctr, Seoul 02841, South Korea

[4] Korea Univ, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea

[5] Sejong Univ, Dept Environm & Energy, Seoul 05006, South Korea

来源：

BIORESOURCE TECHNOLOGY | 2018年 / 267卷

关键词：

Lignocellulosic biomass; Engineered biochar; Acid activation; Biorefinery; Food waste valorization; HYDROXYMETHYLFURFURAL HMF; LEVULINIC ACID; VALORIZATION; CARBON; BIOMASS; METAL; FUNCTIONALIZATION; PERFORMANCE; VALEROLACTONE; OXIDATION;

D O I：

10.1016/j.biortech.2018.07.048

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The catalytic activity of engineered biochar was scrutinized for generation of glucose and hydroxymethylfurfural (HMF) from starch-rich food waste (bread, rice, and spaghetti). The biochar catalysts were synthesized by chemical activation of pinewood sawdust with phosphoric acid at 400-600 degrees C. Higher activation temperatures enhanced the development of porosity and acidity (characterized by C-O-PO3 and C-PO3 surface groups), which imparted higher catalytic activity of H3PO4-activated biochar towards starch hydrolysis and fructose dehydration. Positive correlations were observed between HMF selectivity and ratio of mesopore to micropore volume, and between fructose conversion and total acid density. High yields of glucose (86.5 Cmol% at 150 degrees C, 20 min) and HMF (30.2 Cmol% at 180 degrees C, 20 min) were produced from rice starch and bread waste, respectively, over H3PO4-activated biochar. These results highlighted the potential of biochar catalyst in biorefinery as an emerging application of engineered biochar.

引用

页码：242 / 248

页数：7

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