%0 Conference Paper
%A Jerome, Gbenga
%A Dam, An Phuc
%A Dirkes, Steffen
%A Mänken, Christian
%A Selmert, Victor
%A Samsun, Remzi Can
%A Eichel, Rüdiger-A.
%T Optimizing solid oxide co-electrolysis for air-derived methanol
%M FZJ-2025-05579
%D 2025
%X Combining DAC and SOEC powered by renewable energy offers a promising solution for producing methanol in region with abundant renewable energy but with limited fresh water supply. However, there are technical challenges that must be overcome for their implementation, particularly for the SOEC system. SOEC system is a key technology in overall process as it directly governs conversion efficiency, carbon deposition risk and critical for efficient water management. Therefore, SOEC system must be carefully operated to avoid carbon deposition and minimal water utilization.This presentation evaluates two SOEC designs—low and high utilization designs—that were previously proposed. Results demonstrate that the stoichiometric number (SN) can be optimized for the target range of 2.01 to 2.05 required for methanol synthesis by controlling utilization and H2O/CO2 ratio. Heat integration and water recycling further improved the low utilization design by 10.4% in energy efficiency and 42.2% in water management, enabling carbon-safe SOEC operation with minimal freshwater consumption.
%B IET-1 PhD Fall Seminar
%C 17 Nov 2025 - 19 Nov 2025, Jülich-Barmen (Germany)
Y2 17 Nov 2025 - 19 Nov 2025
M2 Jülich-Barmen, Germany
%F PUB:(DE-HGF)31
%9 Talk (non-conference)
%U https://juser.fz-juelich.de/record/1049795