Abstract
The purpose of this work was to study the gas yield variation resulted from the cherry wood gasification with air using a lab-scale rotary kiln gasifier. The feedstock was continuously fed into the preheated reactor at 600°C, in co-current configuration, using atmospheric air as a gasifying agent. The results indicate the importance of oxidation reaction control, through the feeding flow rates of biomass and air and the reactants mixing rate. From the experiment, the hydrogen yields were about 2-4%, while the carbon monoxide varied between 8-21%. Additionally, the paper provides process observations based on the continuous monitoring of gas composition. The specific flow rates of substances and installation operating conditions were linked to process run through syngas composition.
Highlights
Recent reports and former scientific studies, including the authors, have outlined the advantages and challenges of bioenergy usage: i) biomass is an important energy source but its structure could cause a chain of issues mainly associate at their phase change behavior affecting the overall process energy efficiency [1]; ii) globally, the bionergy usage could decrease the greenhouse gases with 65% by 2050 [2], iii) in 2017, bioenergy accounted for roughly 70% of the renewable energy consumption, worldwide [3]
The volatile matter (VM), fixed carbon (FC), ash content and high heating value (HHV) as received (a.r) values are closely with the ones reported by Telmo et al, 2010 [26] on 84.9%, 15%, 0.1% and 17500 kJ/kg
The permanent monitoring of gas composition offers information about process status throughout the entire experiment. Both specific flow rates of substances and installation operating conditions will be reflected in syngas composition
Summary
Recent reports and former scientific studies, including the authors, have outlined the advantages and challenges of bioenergy usage: i) biomass is an important energy source but its structure could cause a chain of issues mainly associate at their phase change behavior affecting the overall process energy efficiency [1]; ii) globally, the bionergy usage could decrease the greenhouse gases with 65% by 2050 [2], iii) in 2017, bioenergy accounted for roughly 70% of the renewable energy consumption, worldwide [3]. Same remark has been done for the Prunus avium tree family, commonly called sweet cherry, wild cherry and gean, due to its woody based structure [15] including their stones [16] and their seeds [17, 18]. Apart from their role in the food supply chain, the Prunus avium trees could reach to their end life, becoming an agroforestry residue. The study findings are related to process set-up and installation operation influence on gasification reactions and products formation
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