EUBCE 2024 - R.Y. CHEIN - Chemical Looping Reforming for Carbon-neutral and Carbon-negative Emissions Using Bioethanol as Feedstock

Chemical Looping Reforming for Carbon-neutral and Carbon-negative Emissions Using Bioethanol as Feedstock

Short Introductive summary

The greenhouse emissions give rise to an increasing global temperature and this is the main cause of a series of environmental problems. Special attention is being focused on producing bioenergy coupled with CO2 capture and storage technologies (BECCS). In BECCS, heat, electricity, or H2 may be produced and, at the same time, CO2 would be removed from the atmosphere following the principles of the negative emissions technologies (NETs). Among the most relevant NETs and BECCS technologies under development, chemical looping technology is one of the good candidates because CO2 can be captured at a low cost or the high-purity H2 can be obtained. This study aims to examine the characteristics of chemical looping applied to the BECCS. The ethanol derived from biomass is chosen as the fuel for syngas production. The pure ethanol, gaseous ethanol-CO2 mixture, and ethanol-water solution are used as the feedstock for the chemical looping partial oxidation, dry reforming, and steam reforming, respectively. The preliminary results indicate that a lower reaction temperature can be used to get higher ethanol conversion by the introduction of reforming agents in the reduction stage.

R. Chein, National Chung Hsing University, Taichung City, TAIWAN
C Tu, National Chung Hsing University, Taichung City, TAIWAN
T. Tsao, National Chung Hsing University, Taichung City, TAIWAN
K. Wu, National Chung Hsing University, Taichung City, TAIWAN