TY - JOUR
T1 - Gasification of psidium guajava l. Waste using supercritical water
T2 - Evaluation of feed ratio and moderate temperatures
AU - González-Arias, Sandro
AU - Zúñiga-Moreno, Abel
AU - García-Morales, Ricardo
AU - Elizalde-Solis, Octavio
AU - Verónico-Sánchez, Francisco J.
AU - Flores-Valle, Sergio O.
N1 - Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/5/1
Y1 - 2021/5/1
N2 - Biomass waste, as raw material for renewable energy, is an attractive alternative since it does not compete with human food supply. An emerging alternative for its treatment is supercritical water gasification (SCWG), due to the high moisture content of some types of biomass. On this regards, guava fruit (Psidium guajava L.) is one of the most wasted agro-food products in Mexico. This motivated us to evaluate gasification of guava waste on dry biomass base under supercritical water conditions for the first time, with the aim of analyzing the impact of moderate temperatures and feed ratios as reaction parameters on gas products. Temperature was varied in the range of 673.15–773.15 K and using a batch reactor loaded with biomass:water (B:W) mass ratios of 1:1, 1:4, and 1:6. Furthermore, the obtained solid, liquid, and gas phase products were characterized. Hydrogen (H2 ), carbon dioxide (CO2 ), carbon monoxide (CO), methane (CH4 ), ethane (C2H6 ), propane (C3H8 ), and butane (C4H10 ) were identified in gas phase and quantified by means of a gas chromatograph equipped with a TCD detector. Liquid and solid phase products were subjected to Fourier Transform Infrared spectroscopy analyses. This preliminary research indicated that high temperature operation and high biomass:water mass ratio enhanced gas yields (mol/kg) of about 4.137 for CH4, 6.705 for CO2, and 7.743 for H2; whereas the selectivity and gas efficiency for hydrogen was 65.26% and 58.94%, respectively.
AB - Biomass waste, as raw material for renewable energy, is an attractive alternative since it does not compete with human food supply. An emerging alternative for its treatment is supercritical water gasification (SCWG), due to the high moisture content of some types of biomass. On this regards, guava fruit (Psidium guajava L.) is one of the most wasted agro-food products in Mexico. This motivated us to evaluate gasification of guava waste on dry biomass base under supercritical water conditions for the first time, with the aim of analyzing the impact of moderate temperatures and feed ratios as reaction parameters on gas products. Temperature was varied in the range of 673.15–773.15 K and using a batch reactor loaded with biomass:water (B:W) mass ratios of 1:1, 1:4, and 1:6. Furthermore, the obtained solid, liquid, and gas phase products were characterized. Hydrogen (H2 ), carbon dioxide (CO2 ), carbon monoxide (CO), methane (CH4 ), ethane (C2H6 ), propane (C3H8 ), and butane (C4H10 ) were identified in gas phase and quantified by means of a gas chromatograph equipped with a TCD detector. Liquid and solid phase products were subjected to Fourier Transform Infrared spectroscopy analyses. This preliminary research indicated that high temperature operation and high biomass:water mass ratio enhanced gas yields (mol/kg) of about 4.137 for CH4, 6.705 for CO2, and 7.743 for H2; whereas the selectivity and gas efficiency for hydrogen was 65.26% and 58.94%, respectively.
KW - Biomass waste
KW - Gasification
KW - Psidium guajava L
KW - Supercritical
KW - Water
UR - http://www.scopus.com/inward/record.url?scp=85106416633&partnerID=8YFLogxK
U2 - 10.3390/en14092555
DO - 10.3390/en14092555
M3 - Artículo
AN - SCOPUS:85106416633
SN - 1996-1073
VL - 14
JO - Energies
JF - Energies
IS - 9
M1 - 2555
ER -