Hydrothermal liquefaction of lignocellulosic biomass with potassium phosphate and iron and their binary mixture: A comprehensive investigation on the yields and compositions of biocrude and solid residue

被引：6

作者：

Chen, Fei ^{[1
,2
]}

Wang, Yuqi ^{[1
,2
]}

Zheng, Lan ^{[1
,2
]}

Wu, Le ^{[1
,2
]}

Ding, Xin ^{[1
,2
]}

机构：

[1] Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China

[2] Xian Key Lab Green Hydrogen Prod Storage & Applica, Xian 710069, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2023年 / 386卷

基金：

中国国家自然科学基金;

关键词：

Straw; Hydrothermal liquefaction; Biocrude; Homogeneous catalyst; Heterogeneous catalyst; OIL; FE; CELLULOSE;

D O I：

10.1016/j.biortech.2023.129532

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Hydrothermal liquefaction of corn, soybean, rice and wheat straws with K3PO4, Fe and Fe + K3PO4 at 320 degrees C for 30 min was examined. The addition of K3PO4 led to the highest biocrude yields from hydrothermal liquefaction of rice straws (39.20 wt%). Particularly, the biocrude yields from K3PO4-catalyzed hydrothermal liquefaction of corn and rice straws were similar to 10 wt% higher than those from non-catalytic run (19.4 and 27.8 wt%). Catalytic hydrothermal liquefaction with K3PO4 had minimal impact on the elemental compositions of biocrudes and solid residue. Furthermore, K3PO4 promoted the enrichment of low-boiling components in biocrudes by 2.02 wt%. for hydrothermal liquefaction of wheat straw. Moreover, the incorporation of K3PO4 induces the occurrence of dense porous structure on the surface of solid residue, making it highly suitable as an adsorbent or catalyst carrier. Finally, potential reaction network and mechanisms of catalytic hydrothermal liquefaction of straw have been proposed and discussed detailly.

引用

页数：10