A Review of Bio-Oil Production through Microwave-Assisted Pyrolysis

Abstract

The issue of sustainability is a growing concern and has led to many environmentally friendly chemical productions through a great intensification of the use of biomass conversion processes. Thermal conversion of biomass is one of the most attractive tools currently used, and pyrolytic treatments represent the most flexible approach to biomass conversion. In this scenario, microwave-assisted pyrolysis could be a solid choice for the production of multi-chemical mixtures known as bio-oils. Bio-oils could represent a promising new source of high-value species ranging from bioactive chemicals to green solvents. In this review, we have summarized the most recent developments regarding bio-oil production through microwave-induced pyrolytic degradation of biomasses.

Value‐added products from waste: Slow pyrolysis of used polyethylene‐lined paper coffee cup waste

“…MAP of cellulose can follow two different paths: a dehydration process that leads to the formation of levoglucosan or, alternatively, the cellulose can be cracked through radical degradation/isomerization reactions, producing a mixture of furans. [ 34 ] The MAP of cup waste, carried out under these conditions, led the cracking towards the production of furfural and 2‐Fruancarboxaldehyde, 5‐methyl‐. The small amount of levoglucosan produced tends to further degrade into small organic molecules containing carboxyl and carbonyl groups.…”

q-Gaussians and the shapes of Raman spectral lines

“…Biochar is the solid residue of pyrolysis of biomass, obtained by thermochemical decomposition at moderate temperatures under oxygen-limiting conditions (Brassard et al, 2019). Besides biochar proper, liquid (bio-oil) and gas (syngas) products are obtained by the thermal process (Han & Kim, 2008, Ok et al, 2015, Giorcelli et al, 2021. The principal use of biochar is as amendment in agricultural soils, (Brassard et al, 2019, Ok et al, 2015, but because of its high compatibility with polymers and other materials it is suitable for several non-soil applications (Bartoli et al, 2020(Bartoli et al, , 2022…”

q-Gaussians and the shapes of Raman spectral lines

“…Biochar is the solid residue of pyrolysis of biomass, obtained by thermochemical decomposition at moderate temperatures under oxygen-limiting conditions (Brassard et al, 2019). Besides biochar proper, liquid (bio-oil) and gas (syngas) products are obtained by the thermal process (Han & Kim, 2008, Ok et al, 2015, Giorcelli et al, 2021. The principal use of biochar is as amendment in agricultural soils, (Brassard et al, 2019, Ok et al, 2015, but because of its high compatibility with polymers and other materials it is suitable for several non-soil applications (Bartoli et al, 2020…”