Bio-oil from biomass fast pyrolysis: Yields, related properties and energy consumption analysis of the pyrolysis system

Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

“…The observed viscosity range of the bio-oil indicates the possibility of minimized problems of clogging and coking at the cooling device. Due to the presence of water in bio-oil, it undergoes polymerization reactions, whereby the speed of reaction increases with temperature increase and the viscosity also reduces with temperature increase ( Li et al., 2021 ).…”

“…From the result of the bio-oil density presented in Table 6 , the density of bio-oil decreased with increasing temperature and heating rates. The observed reduction in density at higher pyrolysis temperature and heating rates may be attributable to the loss of water molecules, thereby making it more convenient to use and transport which invariably reduces cost and increases efficiency ( Li et al., 2021 ).…”

“…Generally, the physical and chemical properties of bio-oil include viscosity, specific gravity, pH, flash point, density, solubility, water content, residual carbon content, volatilization, solubility, thermal conductivity, specific heat capacity and HHV. However, viscosity, specific gravity, pH, flash point and HHV were only determined in this study using the standard procedures reported elsewhere ( Li et al., 2021 ; Rueangsan et al., 2021 ; Tesfa et al., 2013 ).…”

“…On the other hand, the high viscosity index and ash content with a low calorific value, acidity and instability have posed great limitations to the application of bio-oil. Improved understanding of bio-oil production will assist researchers to reduce the challenges associated with bio-oil and J o u r n a l P r e -p r o o f 6 optimize process parameters that will enhance its application as a substitute for diesel fuels (Li et al, 2021).…”

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions

“…Using various technologies, such as pyrolysis [ 3 ], combustion [ 4 ], anaerobic digestion [ 4 , 5 ], fermentation [ 6 ], etc., biowastes can be valorized into biofuels [ 7 , 8 ], bio-oil [ 9 ], valuable chemicals [ 10 , 11 ], and activated carbon-based adsorbents [ 12 , 13 , 14 , 15 , 16 , 17 ].…”