Catalytic pyrolysis for upgrading of biooil obtained from biomass

Abstract

Global demand of energy is increasing rapidly due to population growth and economic development. Presently, developing nations are dependent on conventional fossil fuels for meeting their energy needs. These conventional resources are for a limited period of time and their continuous usage produces greenhouse gases, air toxics and pollutants, consequently leading to environmental pollution and adverse climatic impacts. Biomass is an eco-friendly and abundantly available resource. Thus the use of biomass has emerged as a promising source of energy. Many methods are there which can be used to produce a variety of biomass-based energy resources. Pyrolysis of biomass is an efficient and clean process to obtain energy-rich products such as biooil, biochar, and pyrolytic gas. Catalytic fast pyrolysis of biomass is one of the possible solutions for upgrading of conventional biooil obtained from fast pyrolysis into a high-valued bioenergy source. Catalytic pyrolysis is done by introducing catalyst into a fast pyrolysis process to create catalytic reactions leading to products that possess either partially or totally different characteristics in terms of oxygen content, heating value, viscosity, and stability as compared to noncatalytic biooil. Upgradation of biooil to a conventional transport fuel needs full deoxygenation of biooil which can be achieved by catalytic pyrolysis. © 2022 Elsevier Inc. All rights reserved.