Microwave-enhanced pyrolysis of natural algae from water blooms

被引：65
作者：
Zhang, Rui [1 ]
Li, Linling [1 ]
Tong, Dongmei [1 ]
Hu, Changwei [1 ]
机构：
[1] Sichuan Univ, Coll Chem, Minist Educ, Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2016年 / 212卷
关键词：
Microwave-enhanced pyrolysis; Algae; Pyrolytic atmosphere; Activated carbon; Catalytic hydrodeoxygenation; BIO-OIL; CATALYTIC PYROLYSIS; ASSISTED PYROLYSIS; FRACTIONAL PYROLYSIS; NICKEL PHOSPHIDE; MICROALGAE; BIOMASS; CYANOBACTERIA; CONVERSION; HZSM-5;
D O I：
10.1016/j.biortech.2016.04.053
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Microwave-enhanced pyrolysis (MEP) of natural algae under different reaction conditions was carried out. The optimal conditions for bio-oil production were the following: algae particle size of 20-5 mesh, microwave power of 600 W, and 10% of activated carbon as microwave absorber and catalyst. The maximum liquid yield obtained under N-2, 10% H-2/Ar, and CO2 atmosphere was 49.1%, 51.7%, and 54.3% respectively. The energy yield of bio-products was 216.7%, 236.9% and 208.7% respectively. More long chain fatty acids were converted into hydrocarbons by hydrodeoxygenation under 10% H-2/Ar atmosphere assisted by microwave over activated carbon containing small amounts of metals. Under CO2 atmosphere, carboxylic acids (66.6%) were the main products in bio-oil because the existence of CO2 vastly inhibited the decarboxylation. The MEP of algae was quick and efficient for bio-oil production, which provided a way to not only ameliorate the environment but also obtain fuel or chemicals at the same time. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：311 / 317
页数：7
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