Revolutions in algal biochar for different applications:State-of-the-art techniques and future scenarios

Yi-Di Chen; Feiyu Liu; Nan-Qi Ren; Shih-Hsin Ho

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Revolutions in algal biochar for different applications:State-of-the-art techniques and future scenarios

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Algae are potential feedstock for the production of bioenergy and valuable chemicals.After the extraction of specific value-added products,algal residues can be further conve rted into biogas,biofuel,and biochar through various thermochemical treatments such as conventional pyrolysis,microwave pyrolysis,hydrothermal conversion,and torrefaction.The compositions and physicochemical characteristics of algal biochar that dete rmine the subsequent applications are compre hensively discussed.Algal biochar carbonized at high-temperature showed remarkable performance for use as supercapacitors,CO_(2) adsorbents,and persulfate activation,due to its graphitic carbon structure,high electron transport,and specific surface area.The algal biochar produced by pyrolysis at mode rate-temperature exhibits high performance for adsorption of pollutants due to combination of miscellaneous functional groups and po rous structures,whereas coal fuel can be obtained fro m algae via torrefaction by pyrolysis at relatively low-tempe rature.The aim of this review is to study the production of algal biochar in a cost-effective and environmental-friendly method and to reduce the environmental pollution associated with bioenergy generation.achieving zero emission enerev production.

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《中国化学快报：英文版》 |2020年第10期|2591-2602|共12页
作者
Yi-Di Chen; Feiyu Liu; Nan-Qi Ren; Shih-Hsin Ho;
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作者单位

School of Civil and Environmental Engineering;

Harbin Institute of Technology(Shenzhen);

Shenzhen 518055;

China;

State Key Laboratory of Urban Water Resource and Environment;

School of Environment;

Harbin Institute of Technology;

Harbin 150090;

China;

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原文格式 PDF
正文语种 chi
中图分类生物能及其利用;
关键词
Algae; Algal residue; Thermochemical processes; Pyrolysis; Biochar;

Revolutions in algal biochar for different applications:State-of-the-art techniques and future scenarios

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