Bio-oil synthesis from cassava pulp via hydrothermal liquefaction: Effects of catalysts and operating conditions

The influence of catalysts and operating conditions on the conversion and yield of bio-crude oil from CP via the hydrothermal liquefaction technique (HTL) were studied. HTL is commonly used to convert CP to bio-crude oil (BCO). Three independent factors-reaction temperatures (250-350 °C), reaction t...

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Hauptverfasser: Nonchana, Thanakrit (VerfasserIn), Pianthong, Kulachate (VerfasserIn)
Format: EJournal Article
Veröffentlicht: Center of Biomass & Renewable Energy, Diponegoro University, 2020-10-15.
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001 IJRED_UNDIP_29556_pdf
042 |a dc 
100 1 0 |a Nonchana, Thanakrit  |e author 
700 1 0 |a Pianthong, Kulachate  |e author 
245 0 0 |a Bio-oil synthesis from cassava pulp via hydrothermal liquefaction: Effects of catalysts and operating conditions 
260 |b Center of Biomass & Renewable Energy, Diponegoro University,   |c 2020-10-15. 
500 |a https://ejournal.undip.ac.id/index.php/ijred/article/view/29556 
520 |a The influence of catalysts and operating conditions on the conversion and yield of bio-crude oil from CP via the hydrothermal liquefaction technique (HTL) were studied. HTL is commonly used to convert CP to bio-crude oil (BCO). Three independent factors-reaction temperatures (250-350 °C), reaction times (30-90 min), and CP concentrations (5-20 wt.%)-were investigated. Proximate analysis showed that CP comprises 84.61% volatile matter and 13.59% fixed carbon. The ultimate analysis demonstrated that CP has carbon and oxygen levels of 44.86% and 46.91%, respectively. Thermogravimetric analysis showed that CP begins to decompose at temperatures between 250-350 °C. The results show that KOH is the most suitable catalyst because it provides the highest BCO yield when compared to other catalysts under the same operating conditions. We found that the ideal operating conditions for maximizing BCO performance are 250 °C, pressure of 17.0 MPa, 90 min, 5 wt.%. Under these conditions, Fourier transforms infrared analysis showed that the most abundant chemical bonds found in BCO were CH3-O, CH3-C, and CH3. The findings of the CHNS analysis showed that BCO has an H/C ratio of 2.25, similar to that of petroleum and bio-diesel. Results from a gas chromatograph-mass spectrometer indicate that a fatty acid group is the main component of BCO.  
540 |a Copyright (c) 2020 The Authors. Published by Centre of Biomass and Renewable Energy (CBIORE) 
540 |a http://creativecommons.org/licenses/by-sa/4.0 
546 |a eng 
690 |a Cassava pulp; Hydrothermal liquefaction; Bio-crude oil; Bio-oil synthesis; Response surface methodology 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n International Journal of Renewable Energy Development; Vol 9, No 3 (2020): October 2020; 329-337 
786 0 |n 2252-4940 
787 0 |n https://ejournal.undip.ac.id/index.php/ijred/article/view/29556/pdf 
856 4 1 |u https://ejournal.undip.ac.id/index.php/ijred/article/view/29556/pdf  |z Get Fulltext