Effect of microwave-assisted wet torrefaction on liquefaction of biomass from palm oil and sugarcane wastes to bio-oil and carbon nanodots/nanoflakes by hydrothermolysis and solvothermolysis

Amornrat Sangjan, Pornthip Ngamsiri, Nikom Klomkliang, Kevin C.-W. Wu, Babasaheb M. Matsagar, Sakhon Ratchahat, Chen-Guang Liu, Navadol Laosiripojana and Chularat Sakdaronnarong

Renewable Energy, 2020, vol. 154, issue C, 1204-1217

Abstract: This study aimed to produce bio-oils from various lignocellulosic biomass, namely palm empty fruit bunch (EFB), palm fiber (PF), sugarcane bagasse (SB), and sugarcane leaves (SL). Hydrothermal liquefaction, an environmentally benign process, was applied for converting wet bio-resources to bio-oils. The effect of Na2CO3 and La2O3 catalysts were investigated at 300 °C, the results showed higher bio-oil yield from Na2CO3 compared to La2O3. The use of glycerol solvent as a hydrogen donor substantially enhanced bio-oil yield for 300% compared to aqueous solvent. Furthermore, the microwave-assisted wet torrefaction (800 W for 20 min) pretreatment employed for EFB helps to increase aliphatic and aromatic compounds and enhance the light and heavy bio-oils yields to 76.80 wt%. SB and EFB are promising biomass for solvothermolysis liquefaction giving the highest energy ratio. A substantial amount of carbon nanodots and nanoflakes were produced from hydrothermolysis and solvothermolysis liquefaction of EFB with average mean diameters of 49.5 and 100.4 nm, respectively.

Keywords: Hydrothermal liquefaction; Sodium carbonate; Lanthanum(III) oxide; Microwave-assisted wet torrefaction; Bio-crude; Carbon nanoparticles (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148120303955
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:154:y:2020:i:c:p:1204-1217

DOI: 10.1016/j.renene.2020.03.070

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().