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Publication Type J
Authors Iaccarino, A., R. Gautam and S. M. Sarathy
Title Bio-oil and biochar production from halophyte biomass: effects of pre-treatment and temperature on Salicornia bigelovii pyrolysis
Source Sustainable Energy & Fuels
Author Keywords catalytic fast pyrolysis renewable energy conversion cellulose kinetics lignin water hemicellulose chemicals sawdust
Abstract Salicornia bigelovii (SB) is a strategically important plant in many regions owing to its ability to grow in arid climates and saline water. This study evaluates the effects of halophyte biomass pre-treatment on the production of bio-oil and biochar via pyrolysis of SB. The pyrolysis experiments were performed in a quartz tube reactor at 600, 700, and 800 degrees C to understand the effect of the temperature on the products obtained from untreated SB (USB) and pre-treated SB (PSB). USB and PSB samples were characterized to determine their thermal stability, elemental composition, mineral composition, and functional group identification. Pre-treatment of SB reduced the ash and Na content by 71% and 45%, respectively. Ash removal favored the pyrolysis-assisted extraction of carboxylic acids, and their selectivity in the bio-oil increased from 20.7% (USB) to 33.4% (PSB) at 600 degrees C. The selectivity to phenolics was observed to be the highest at 800 degrees C in the bio-oil from USB (10.4%) and PSB (13.4%). PSB pyrolysis increased the specific surface area of biochar by four times, whereas carbon nanostructures were observed in the biochar from USB. The formation pathways of the major compounds from the pyrolysis of various amino acids, cellulose, hemicellulose, fatty acids, and lignin present in SB were elucidated by proposing a plausible reaction scheme.
Author Address [Iaccarino, Alessia; Gautam, Ribhu; Sarathy, S. Mani] King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Clean Combust Res Ctr, Thuwal 239556900, Saudi Arabia. Gautam, R (corresponding author), King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Clean Combust Res Ctr, Thuwal 239556900, Saudi Arabia. ribhu.gautam@kaust.edu.sa
ISSN 2398-4902
ISBN 2398-4902
29-Character Source Abbreviation Sustain. Energ. Fuels
Publication Date Apr
Year Published 2021
Volume 5
Issue 8
Beginning Page 2234-2248
Digital Object Identifier (DOI) 10.1039/d0se01664k
Unique Article Identifier WOS:000641473900017

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