scholarly journals Acid-Catalyzed Liquefaction of Biomasses from Poplar Clones for Short Rotation Coppice Cultivations

Molecules ◽  
2022 ◽  
Vol 27 (1) ◽  
pp. 304
Author(s):  
Ivo Paulo ◽  
Luis Costa ◽  
Abel Rodrigues ◽  
Sofia Orišková ◽  
Sandro Matos ◽  
...  
Keyword(s):  
Global Economy ◽  
Fossil Fuels ◽  
Short Rotation Coppice ◽  
Positive Dependence ◽  
Short Rotation ◽  
Poplar Clones ◽  
Bio Oil ◽  
Acid Catalyzed ◽  
Intensively Managed ◽  
Elementary Carbon

Liquefaction of biomass delivers a liquid bio-oil with relevant chemical and energetic applications. In this study we coupled it with short rotation coppice (SRC) intensively managed poplar cultivations aimed at biomass production while safeguarding environmental principles of soil quality and biodiversity. We carried out acid-catalyzed liquefaction, at 160 °C and atmospheric pressure, with eight poplar clones from SRC cultivations. The bio-oil yields were high, ranging between 70.7 and 81.5%. Average gains of bio-oil, by comparison of raw biomasses, in elementary carbon and hydrogen and high heating, were 25.6, 67, and 74%, respectively. Loss of oxygen and O/C ratios averaged 38 and 51%, respectively. Amounts of elementary carbon, oxygen, and hydrogen in bio-oil were 65, 26, and 8.7%, and HHV averaged 30.5 MJkg−1. Correlation analysis showed the interrelation between elementary carbon with HHV in bio-oil or with oxygen loss. Overall, from 55 correlations, 21 significant and high correlations among a set of 11 variables were found. Among the most relevant ones, the percentage of elementary carbon presented five significant correlations with the percentage of O (−0.980), percentage of C gain (0.902), percentage of O loss (0.973), HHV gain (0.917), and O/C loss (0.943). The amount of carbon is directly correlated with the amount of oxygen, conversely, the decrease in oxygen content increases the elementary carbon and hydrogen concentration, which leads to an improvement in HHV. HHV gain showed a strong positive dependence on the percentage of C (0.917) and percentage of C gain (0.943), while the elementary oxygen (−0.885) and its percentage of O loss (0.978) adversely affect the HHV gain. Consequently, the O/C loss (0.970) increases the HHV positively. van Krevelen’s analysis indicated that bio-oils are chemically compatible with liquid fossil fuels. FTIR-ATR evidenced the presence of derivatives of depolymerization of lignin and cellulose in raw biomasses in bio-oil. TGA/DTG confirmed the bio-oil burning aptitude by the high average 53% mass loss of volatiles associated with lowered peaking decomposition temperatures by 100 °C than raw biomasses. Overall, this research shows the potential of bio-oil from liquefaction of SRC biomasses for the contribution of renewable energy and chemical deliverables, and thereby, to a greener global economy.

scholarly journals Performance of hybrid poplar clones in short rotation coppice in Mediterranean environments: analysis of genotypic stability

GCB Bioenergy ◽  
2013 ◽  
Vol 6 (6) ◽  
pp. 661-671 ◽  
Author(s):  
Hortensia Sixto ◽  
Paula Gil ◽  
Pilar Ciria ◽  
Francesc Camps ◽  
Mario Sánchez ◽  
...  
Keyword(s):  
Hybrid Poplar ◽  
Short Rotation Coppice ◽  
Short Rotation ◽  
Mediterranean Environments ◽  
Poplar Clones ◽  
Genotypic Stability

Bio-oil from residues of short rotation coppice of poplar using a microwave assisted pyrolysis

2016 ◽  
Vol 119 ◽  
pp. 224-232 ◽  
Author(s):  
Mattia Bartoli ◽  
Luca Rosi ◽  
Alessio Giovannelli ◽  
Piero Frediani ◽  
Marco Frediani
Keyword(s):  
Short Rotation Coppice ◽  
Microwave Assisted ◽  
Short Rotation ◽  
Bio Oil

Selection of Poplar Clones for Short Rotation Coppice in a Reclaimed Land

2018 ◽  
Vol 52 (2) ◽  
pp. 21-32
Author(s):  
Hyunseok Lee ◽  
◽  
Hyun-Chul Kim ◽  
Jun-Won Kang ◽  
Wi-Young Lee ◽  
...  
Keyword(s):  
Short Rotation Coppice ◽  
Reclaimed Land ◽  
Short Rotation ◽  
Poplar Clones ◽  
Selection Of

scholarly journals Low-Temperature Hydrothermal Treatment (HTT) Improves the Combustion Properties of Short-Rotation Coppice Willow Wood by Reducing Emission Precursors

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8229
Author(s):  
Sebastian Paczkowski ◽  
Victoria Knappe ◽  
Marta Paczkowska ◽  
Luis Alonzo Diaz Robles ◽  
Dirk Jaeger ◽  
...  
Keyword(s):  
Fossil Fuels ◽  
Hydrothermal Carbonization ◽  
Treatment Temperature ◽  
Ash Content ◽  
National Standards ◽  
Short Rotation Coppice ◽  
Reduction Behavior ◽  
Heating Value ◽  
Short Rotation ◽  
Combustion Properties

The worldwide transformation from fossil fuels to sustainable energy sources will increase the demand for biomass. However, the ash content of many available biomass sources exceeds the limits of national standards. In this study, short-rotation coppice willow biomass was hydrothermally treated at 150, 170 and 185 °C. The higher heating value increased by 2.6% from x¯ = 19,279 J × g−1 to x¯ = 19,793 J × g−1 at 185 °C treatment temperature. The mean ash content was reduced by 53% from x¯ = 1.97% to x¯ = 0.93% at 170 °C treatment temperature, which was below the limit for category TW1b of the European pellet standard for thermally treated biomass. The nitrogen, sulfur and cadmium concentrations were reduced below the limits for category TW1b of the European biomass pellet standard (N: from 0.52% to 0.34%, limit at 0.5%; S: from 0.051% to 0.024%, limit at 0.04%; Cd: from 0.83 mg × kg−1 to 0.37 mg × kg−1, limit at 0.5 mg × kg−1). The highest reduction rates were sampled for phosphor (80–84%), potassium (78–90%), chlorine (96–98%) and lithium (96–98%). The reduction behavior of the elements is discussed according to the chemical processes at the onset of hydrothermal carbonization. The results of this study show that HTT has the potential to expand the availability of biomass for the increasing worldwide demand in the future.

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