Indexed by:期刊论文

Date of Publication:2020-08-01

Journal:PROCESSES

Included Journals:SCIE

Volume:8

Issue:8

Key Words:algal biomass; gasification; kinetics; activation energy distribution

Abstract:Conversion of algal biomass into energy products via gasification has attracted increasing research interests. A basic understanding of the gasification kinetics of algal biomass is of fundamental importance. Distributed activation energy model (DAEM), which provides the information of energy barrier distribution during the gasification process, is a promising tool to study the kinetic process of algae gasification. In this study, DAEM model was used to investigateChlorella vulgarisandSpirulinagasification. The activation energy ofChlorella vulgarisgasification was in the range from 370 to 650 kJ mol(-1). The range of activation energy forSpirulinagasification was a bit wider, spanning from 330 to 670 kJ mol(-1). The distribution of activation energy for bothChlorella vulgarisandSpirulinashowed that 500 kJ mol(-1)had the most components, and these components were gasified at around 300 degrees C. The DAEM algorithm was validated by the conversion and conversion rate from experimental measurement, demonstrating that DAEM is accurate to describe the kinetics of algal biomass gasification.