Pyrolysis and kinetic analyses of a perennial grass (Saccharum ravannae L.) from north-east India: Optimization through response surface methodology and product characterization

被引:47
作者
Saikia, Ruprekha [1 ]
Baruah, Bhargav [1 ]
Kalita, Dipankar [2 ]
Pant, Kamal K. [3 ]
Gogoi, Nirmali [4 ]
Kataki, Rupam [1 ]
机构
[1] Tezpur Univ, Dept Energy, Tezpur 784028, Assam, India
[2] Tezpur Univ, Dept Food Engn & Technol, Tezpur 784028, Assam, India
[3] Indian Inst Technol Delhi, Dept Chem Engn, New Delhi 110016, India
[4] Tezpur Univ, Dept Environm Sci, Tezpur 784028, Assam, India
关键词
Saccharum ravannae L; Pyrolysis; Kinetic study; Response surface methodology; ANTIOXIDANT ACTIVITY; BIO-OIL; PHENOLIC CONTENT; NAPIER GRASS; MASTER PLOTS; BIOMASS; ENERGY; PARAMETERS; CONVERSION; SWITCHGRASS;
D O I
10.1016/j.biortech.2018.01.054
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The objective of the present investigation was to optimize the pyrolysis condition of an abundantly available and low cost perennial grass of north-east India Saccharum ravannae L. (S. ravannae) using response surface methodology based on central composite design. Kinetic study of the biomass was conducted at four different heating rates of 10, 20, 40 and 60 degrees C min(-1) and results were interpreted by Friedman, Kissinger Akira Sunnose and Flynn-Wall-Ozawa methods. Average activation energy 151.45 kJ mol(-1) was used for evaluation of reaction mechanism following Criado master plot. Maximum bio-oil yield of 38.1 wt% was obtained at pyrolysis temperature of 550 degrees C, heating rate of 20 degrees C min(-1) and nitrogen flow rate of 226 mL min(-1). Study on bio-oil quality revealed higher content of hydrocarbon, antioxidant property, total phenolic content and metal chelating capacity. These opened up probable applications of S. ravannae bio-oil in different fields including fuel, food industry and biomedical domain.
引用
收藏
页码:304 / 314
页数:11
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