Hydrothermal processing of duckweed: Effect of reaction conditions on product distribution and composition

被引：87

作者：

Duan, Peigao ^{[1
]}

Chang, Zhoufan ^{[1
]}

Xu, Yuping ^{[1
]}

Bai, Xiujun ^{[1
]}

Wang, Feng ^{[1
]}

Zhang, Lei ^{[1
]}

机构：

[1] Henan Polytech Univ, Dept Appl Chem, Coll Phys & Chem, Jiaozuo 454003, Henan, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 135卷

基金：

美国国家科学基金会;

关键词：

Hydrothermal processing; Duckweed; Bio-oil; Gas; Solid residue; MICROALGAE DUNALIELLA-TERTIOLECTA; LIQUEFACTION; BIOMASS; WATER; GASIFICATION; OIL;

D O I：

10.1016/j.biortech.2012.08.106

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Influences of operating conditions such as temperature (270-380 degrees C), time (10-120 min), reactor loading (0.5-5.5 g), and K2CO3 loading (0-50 wt.%) on the product (e.g. crude bio-oil, water soluble, gas and solid residue) distribution from the hydrothermal processing of duckweed were determined. Of the four variables, temperature and K2CO3 loading were always the most influential factors to the relative amount of each component. The presence of K2CO3 is unfavorable for the production of bio-oil and gas. Hydrothermal processing duckweed produces a bio-oil that is enriched in carbon and hydrogen and has reduced levels of 0 compared with the original duckweed feedstock. The higher heating values of the bio-oil were estimated within the range of 32-36 MJ/kg. Major bio-oil constituents include ketones and their alkylated derivatives, alcohols, heterocyclic nitrogen-containing compounds, saturated fatty acids and hydrocarbons. The gaseous products were mainly CO2 and H-2, with lesser amounts of CH4 and CO. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：710 / 719

页数：10

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