The global energy demand is projected to rise by almost 28% by 2040 compared to current
levels. Biomass is a promising energy source for producing either solid or liquid fuels …

Bio-oil upgrading can be achieved mainly via three types of methods that are biomass pre-
treatment, catalytic upgrading and downstream bio-oil upgrading. The article aim is to review …

Bio-oil produced from biomass pyrolysis and hydrothermal liquefaction is considered as the
most sustainable alternative for depleting fossil fuels. However, the poor bio-oil properties …

Depletion of the oil reservoirs necessitates developing renewable fuels to replace petroleum-
based fuels. Biomass-derived fuels with zero net CO 2 emission are promising substitutes …

The liquefaction of biomass is an important technology to converse the biomass into
valuable biofuel. The common technologies for liquefaction of biomass are indirect …

The increase in energy demands and problems related to fossil fuels have encouraged the
development of suitable renewable energies as petroleum alternatives. Fast pyrolysis is a …

Microalgae have been widely considered as the potential sources for bio-fuel production
without affecting the environment. Hydrothermal liquefaction (HTL) is a suitable technology …

Pyrolysis oil (py-oil) produced via the pyrolysis of waste biomass is an alternative
sustainable source of both bioenergy and valuable biochemical. Py-oil produced from …

The wood processing industry produces a significant amount of wood waste. Biomass
valorization through pyrolysis has the potential to increase the added value of wood wastes …

This paper documents the production, upgradation and utilization aspects of solar driven
pyrolysis products namely bio-oil, biochar, and pyrolytic gas. Scattered literature information …