Pyrolysis Characteristics and Kinetics of Macroalgae Biomass Using Thermogravimetric Analyzer

Authors: Zhao Hui, Yan Huaxiao, Zhang Mengmeng, Qin Song

Abstract:

The pyrolysis characteristics and kinetics of seven marine biomass, which are fixed Enteromorpha clathrata, floating Enteromorpha clathrata, Ulva lactuca L., Zosterae Marinae L., Thallus Laminariae, Asparagus schoberioides kunth and Undaria pinnatifida (Harv.), were studied with thermogravimetric analysis method. Simultaneously, cornstalk, which is a grass biomass, and sawdust, which is a lignocellulosic biomass, were references. The basic pyrolysis characteristics were studied by using TG- DTG-DTA curves. The results showed that there were three stages (dehydration, dramatic weight loss and slow weight loss) during the whole pyrolysis process of samples. The Tmax of marine biomass was significantly lower than two kinds of terrestrial biomass. Zosterae Marinae L. had a relatively high stability of pyrolysis, but floating Enteromorpha clathrata had lowest stability of pyrolysis and a good combustion characteristics. The corresponding activation energy E and frequency factor A were obtained by Coats-Redfern method. It was found that the pyrolysis reaction mechanism functions of three kinds of biomass are different.

Keywords: macroalgae biomass, pyrolysis, thermogravimetric analysis, thermolysis kinetics.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1329683

References:

[1] XU Ying, LIU Hongyan. Development and Expectation of the Energy Plant (J). Chinese Agricultural Science Bulletin, 2009, 25(03): 297-300.
[2] Li Zhen, Wang Shuang, Xu Shannan, et al. Study on Pyrolysis Characteristics and Kinetics of Green Seaweed Enteromorpha clathrata (J). Biotechnology Bulletin, 2007(3): 159-164. (in Chinese)
[3] FU Xufeng, ZHONG Zhaoping, XIAO Gang, et al. Comparative study on pyrolysis characteristics and dynamics of grass biomass(J). Transactions of the CSAE, 2009, 25(1):199-202. (in Chinese)
[4] DU Hai-qing. The catalytic pyrolysis kinetics of lignocellulosic biomass (D). Harbin:Heilongjiang University, 2008. ( in Chinese)
[5] WANG Jun. The fundamental research of preparing liquid fuel based on microwave pyrolysis of biomass (D).Huainan:Anhui University of Science and Technology, 2007. (in Chinese)
[6] DU Haiqing, WANG Jing, BAI Xuefeng. Study on pyrolysis process of lignocellulosic biomass by thermogravimetric analysis (J).Journal of Natural Science of Heilongjiang University, 2008, 25(1):85-89. (in Chinese)
[7] ZHANG Zhenhua´╝îWANG Hualin´╝îCHEN Yuqin´╝îet al. Study on the Pyrolysis Properties of the Typical Waste Biomass (J). Journal of Agricultural Mechanization Research, 2008, 3(3):211-215. (in Chinese)
[8] MENG Baihong. Study on the Characteristics of Pyrolysis Cornstalk by TG-FTIR(D). Harbin:Harbin Institute of Technology ´╝î 2007. (in Chinese)
[9] REN Qiangqiang, ZHAO Changsui, PANG Keliang.TGA-FTIR Analysis of Biomass Pyrolysis(J). Acta Energiae Solaris Sinica, 2008, 29(7): 910-914. (in Chinese)
[10] Xiao Jun, Shen Laihong, Wang Zeming, et al. Pressurized thermogravimetric analysis of pyrolysis of biomass(J).Journal of Combustion Science and Technology,2005, 11(5): 415-420. ( in Chinese)
[11] WANG Wei, LANYuxin, LI Ming.Pyrolysis of Pine Sawdust by TG-FTIR Analysis(J). Journal of Agricultural Environment Science, 2008, 27(1): 380-384. (in Chinese)
[12] XU Jie, YAN Yongjie, LI Wenzhi, et al. Review of Mechanism and Model of Biomass Pyrolysis(II)--Mathematic Modeling of Biomass Pyrolysis(J). Chemistry & Bioengineering, 2008, 25(1):1-4. ( in Chinese)
[13] REN Xio-bo, WU Yuantao, XIANG Wenzhou, et al. Research Progress and Strategy of Marine Biomass Energy(J). Advances in Earth Science, 2009, 24(4): 403-410. (in Chinese)
[14] Jun Wang, Guangce Wang, Mingxu Zhang, et al. A comparative study of thermolysis characteristics and kinetics of seaweeds and fir wood(J). Process Biochemistry, 2006(41):1883-1886.
[15] A.B.Ross, J.M.Jones, M.L.Kubacki, et al. Classification of macroalgae as fuel and its thermochemical behaviour(J). Bioresource Technology, 2008, 99: 6494-6504.