Value-addition of water hyacinth and para grass through pyrolysis and hydrothermal liquefaction  

作　　者：Dinabandhu Sahoo Ayushi Awasthi Vaibhav Dhyani Bijoy Biswas Jitendra Kumar Yenumala Sudhakara Reddy V.P.Adarshc Anoop Puthiyamadam Kiran Kumar Mallapureddy Rajeev KSukumaran Sabeela Beevi Ummalyma Thallada Bhaskar 

机构地区：[1]Biomass Conversion Area(BCA),Materials Resource Efficiency Division(MRED),CSIR-Indian Institute of Petroleum(IIP),Dehradun 248005,India [2]Academy of Scientific and Innovative Research(AcSIR),India [3]Biofuels and Biorefineries Section,Microbial Processes and Technology Division(MPTD),CSIR-National Institute for Interdisciplinary Science and Technology,Thiruvananthapuram 695019,India [4]Institute of Bioresources and Sustainable Development,A National Institute under Department of Biotechnology,Govt.of India,Sikkim Centre,Gangtok 737102,India [5]Institute of Bioresources and Sustainable Development,A National Institute under Department of Biotechnology,Govt.of India,Takyelpat,Imphal 795001,India

出　　处：《Carbon Resources Conversion》2019年第3期233-241,共9页碳资源转化（英文）

摘　　要：Hydrothermal liquefaction(HTL)and pyrolysis(Py)of Loktak lake biomass mixture of water hyacinth(WH)and para grass(PG)were carried out at 260-300℃ and 300-500℃ to compare the products yield and chemical characteristics of the products.In case of HTL,the maximum bio-oil yield was obtained 13.34 wt.%at 280℃ while for Py,the maximum bio-oil yield was observed 38.8 wt.%at 350℃.The obtained bio-oils and bio-chars were analyzed using GC-MS,FT-IR,NMR,TGA,TOC,and SEM.GC-MS analysis of the bio-oils were showed that the HTL bio-oil majorly contains of nitrogen containing compounds whereas the Py bio-oil contains majority of phenolic compounds.Other compounds like ketones,alcohols,acids were also observed in bio-oil.Higher intensity broad band at 3300-3500 cm^(−1) was observed in the Py bio-oil compared to HTL bio-oil.TGA and proximate analysis of bio-char revealed the higher devolatilization occured during the HTL compared to Py process.The surface morphology of the HTL bio-char was found to be rough and fragmented as compared to the pyrolysis bio-char,clearly showing the biomass macromolecules breakdown differently in HTL and Py process.

关 键 词：Hydrothermal liquefaction PYROLYSIS Aquatic biomass BIO-OIL Functional compounds BIO-CHAR 

分 类 号：O62[理学—有机化学]