Gas yield variation in wood biomass co-current air gasification process – continuous operation

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.

Effects of the secondary air inlet position and gasifying agents on grape branch gasification in an improved downdraft gasifier

“…It has been discovered in previous experiments that there is an ideal ER for biomass air/oxygen gasification. 19 In this study, it was found to be 0.2.…”

“…The effects of temperature, 8 pressure, 9 catalysts 10,11 , absorbents, 12 and reactor type 13–18 have been intensively studied. Research on different gasifying agents also has been carried out, such as air, 19 oxygen-enriched air, 20 oxygen, 21 steam, 22 CO 2 , 23 air–steam, 24 and oxygen–steam. 25 However, very limited studies were carried out to compare the effects of different gasifying agents on gasification performance.…”