Hydrothermal liquefaction of sugarcane bagasse to bio-oils: Effect of liquefaction solvents on bio-oil stability

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122793
Author(s):  
Javier A. Jimenez Forero ◽  
Tuyen H.T. Tran ◽  
Tana Tana ◽  
Adrian Baker ◽  
Jorge Beltramini ◽  
...  
2019 ◽  
Vol 15 (1) ◽  
pp. 186-198
Author(s):  
Gopalakrishnan Govindasamy ◽  
Rohit Sharma ◽  
Sunu Subramanian

Development of catalyst with high deoxygenation activity and optimum process parameters are the key for getting the highest biooil yield with the least oxygen content by hydrothermal liquefaction. With this view, iron-cobalt oxides of Co/Fe ratio 0.33, 1.09, 2.35, and 3.52 were prepared by co-precipitation method, and characterized by XRD, BET surface area, chemical composition by EDX method, and evaluated for hydrothermal liquefaction of sugarcane bagasse in a high-pressure batch reactor under subcritical conditions using CO as process gas to find the optimum Co/Fe ratio and process parameters. Optimum Co/Fe ratio was found to be 1.09 as it gave the highest bio-oil yield of 57.6% with the least oxygen content of 10.8%, attributed to the cobalt ferrite, the major phase present in it. The optimum temperature, initial CO pressure, water/biomass ratio, catalyst/biomass ratio and reaction time for the highest oil yield with the least oxygen content were found to be 250 °C, 45 bar, 28, 0.4, and 120 min,  respectively. From the effect of reaction time, it was found that much of the hydrolysis of lignocellulose to water soluble oxygenates, its deoxygenation to bio-oil and its deoxygenation to low oxygen containing bio-oil took place in initial 15 min, 15 to 60 min, and from 30 to 120 min, respectively. Total oil yield (%) was lower by 21% and % oxygen in total oil was higher by 9.9% for spent catalyst compared to fresh catalyst indicating the erosion in the deoxygenation activity of catalyst and thus need for improving its hydrothermal stability. Copyright © 2020 BCREC Group. All rights reserved


2017 ◽  
Vol 293-294 ◽  
pp. 159-166 ◽  
Author(s):  
Junjie Bian ◽  
Qi Zhang ◽  
Peng Zhang ◽  
Lijuan Feng ◽  
Chunhu Li

Fuel ◽  
2021 ◽  
Vol 297 ◽  
pp. 120695
Author(s):  
Jiahui Han ◽  
Xing Li ◽  
Shengyan Kong ◽  
Guang Xian ◽  
Hualong Li ◽  
...  

Fuel ◽  
2021 ◽  
Vol 302 ◽  
pp. 121236
Author(s):  
Alejandra M. Miranda ◽  
Alex A. Sáez ◽  
Brenda S. Hoyos ◽  
Deiver A. Gómez ◽  
Gabriel J. Vargas

2021 ◽  
Vol 148 ◽  
pp. 1060-1069
Author(s):  
Humair Ahmed Baloch ◽  
M.T.H. Siddiqui ◽  
Sabzoi Nizamuddin ◽  
Sajid Riaz ◽  
Muhammad Haris ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (43) ◽  
pp. 26763-26772
Author(s):  
Jian Yang ◽  
Chen Hong ◽  
Yi Xing ◽  
Zixuan Zheng ◽  
Zaixing Li ◽  
...  

In this study, the antibiotic residue was used as a raw material to catalyze hydrothermal liquefaction (HTL) in an ethanol–water system to prepare bio-oil.


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