Characterization of the physicochemical and structural evolution of biomass particles during combined pyrolysis and CO2 gasification

被引：42

作者：

Eshun, John ^{[1
]}

Wang, Lijun ^{[2
,3
]}

Ansah, Emmanuel ^{[1
]}

Shahbazi, Abolghasem ^{[2
,3
]}

Schimmel, Keith ^{[1
]}

Kabadi, Vinayak ^{[3
]}

Aravamudhan, Shyam ^{[4
]}

机构：

[1] North Carolina Agr & Tech State Univ, Dept Energy & Environm Syst, 1601 East Market St, Greensboro, NC 27411 USA

[2] North Carolina Agr & Tech State Univ, Dept Nat Resources & Environm Design, 1601 East Market St, Greensboro, NC 27411 USA

[3] North Carolina Agr & Tech State Univ, Dept Chem Biol & Bioengn, 1601 East Market St, Greensboro, NC 27411 USA

[4] North Carolina Agr & Tech State Univ, Joint Sch Nanosci & Nanoengn, 1601 East Market St, Greensboro, NC 27411 USA

来源：

JOURNAL OF THE ENERGY INSTITUTE | 2019年 / 92卷 / 01期

关键词：

Biomass; Pyrolysis; CO2; gasification; Biochar; Physicochemical properties; CHAR STRUCTURE; POTENTIAL USE; HEATING RATE; BIOCHAR; COAL; TEMPERATURE; RAMAN; KINETICS; WOOD; SOIL;

D O I：

10.1016/j.joei.2017.11.003

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The combination of pyrolysis and CO2 gasification was studied to synergistically improve the syngas yield and biochar quality. The subsequent 60-min CO2 gasification at 800 degrees C after pyrolysis increased the syngas yield from 23.4% to 40.7% while decreasing the yields of biochar and bio-oil from 27.3% to 17.1% and from 49.3% to 42.2%, respectively. The BET area of the biochar obtained by the subsequent 60-min CO2 gasification at 800 degrees C was 384.5 m(2)/g, compared to 6.8 m(2)/g for the biochar obtained by the 60min pyrolysis at 800 degrees C, and 1.4 m(2)/g for the raw biomass. The biochar obtained above 500 degrees C was virtually amorphous. (C) 2017 Energy Institute. Published by Elsevier Ltd. All rights reserved.

引用

页码：82 / 93

页数：12

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