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

作　　者：Yi-Di Chen Feiyu Liu Nan-Qi Ren Shih-Hsin Ho 

机构地区：[1]School of Civil and Environmental Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China [2]State Key Laboratory of Urban Water Resource and Environment,School of Environment,Harbin Institute of Technology,Harbin 150090,China

出　　处：《Chinese Chemical Letters》2020年第10期2591-2602,共12页中国化学快报（英文版）

基　　金：the National Natural Science Foundation of China(No.51961165104);the Project of Thousand Youth Talents。

摘　　要：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.

关 键 词：ALGAE Algal residue Thermochemical processes Pyrolysis BIOCHAR 

分 类 号：TK6[动力工程及工程热物理—生物能] TQ127.11[化学工程—无机化工]