Open AccessImmediate measurement of fuel characteristics of bio-char using NIRS
Author(s) -
Jinbo Xue,
Xiaoying Hu,
Hui Liang,
Xiaodong Wang,
LV Haiyang,
Zengling Yang,
Dong Chen
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/715/1/012081
Subject(s) - char , heat of combustion , pyrolysis , corn stover , biomass (ecology) , pulp and paper industry , straw , process engineering , solid fuel , environmental science , moisture , bioenergy , waste management , biofuel , materials science , chemistry , combustion , agronomy , engineering , composite material , inorganic chemistry , organic chemistry , biology
Low temperature pyrolysis is effective to improve the fuel quality of wheat straw and corn stover. To determine the pyrolysis condition and fully utilizing the solid product (bio-char), the fuel characteristics of the bio-char should be measured. It costs a lot of time and money to finish all the measurement, which really retards the development of the biomass industry. This study is supposed to immediately predict the proximate analysis parameters, ultimate analysis parameters and heat value of sixty-five bio-char using NIRS. The results show the fuel characteristics of the bio-char vary in a very big range. The NIRS models can predict the VM, FC, ash, HHV, oxygen, carbon, hydrogen contents of the bio-char accurately. The Rc and Rcv 2 value are all bigger than 0.92 and the RPD are bigger than 3.59. The NIRS models can also tell the high or low content of moisture and nitrogen. Only for the sulphur, more work need to do to improve the accuracy of the NIRS models. Predicting the fuel characteristic of the bio-char only by scanning the NIR spectrum, which costs only 10 seconds, will really be helpful for the biomass industry.