Name
Experimental assessment of reverse water gas shift integrated with chemical looping for low-carbon fuel applications
Date & Time
Tuesday, October 1, 2024, 10:00 AM - 10:20 AM
Description

CO2 hydrogenation via integrated RWGS and chemical looping (CL-RWGS) is presented to demonstrate the viability of the solution and its thermal management. A reactor packed with 250g of Cu-based oxygen carrier (OC) supported on Al2O3 has been used to convert the CO2 and H2 mixture stream into a syngas stream with a tailored H2 to CO ratio. CL-RWGS is assessed at operating conditions (500 – 600 °C, 1 – 5 bar, H2/CO2 molar ratio 1.0 – 1.3) over multiple cycles. The results demonstrated consistent breakthrough curves during redox cycles, confirming material stability. In 10 consecutive cycles at 600 °C and 1 bar, bed temperatures increased by 184 °C and 132 °C during oxidation and reduction stages respectively. The cooling effects during RWGS showed a decline in solid temperatures, demonstrating effective heat removal strategy while attaining a CO2-to-CO conversion >48%. The outlet gas maintains a H2/CO ratio above 2, confirming the material's dual role as OC and catalyst . During complete CL-RWGS cycles, varying temperature from 500 °C to 600 °C at constant H2/CO2 molar ratio (1.3) and pressure (1 bar) reduces H2/CO molar ratio from 3.14 to 2.35, respectively with a continuous CO2-to-CO conversion > 40%. Additionally, in CL-RWGS cycles, pressure insignificantly affects product molar composition. The study showed the capability of Cu material in converting CO2 into syngas through CL-RWGS technique.

Location Name
Max Bell 252
Full Address
Banff Centre for Arts and Creativity
107 Tunnel Mountain Dr
Banff AB T1L 1H5
Canada
Session Type
Oral Presentation
Abstract ID
1093