Ghose et al. (2026): Techno-economic Analysis of Biomass-Based Carbon Dioxide Removal Process

Aratrika Ghose, Matthew M. Mettler, Timothy A. Barckholtz, Xiaozhou Zhang, Paul J. Dauenhauer and Prodromos Daoutidis, IN: ChemRxiv, https://doi.org/10.26434/chemrxiv.15006279/v1

Carbon dioxide removal (CDR) processes are a suite of approaches for removing and storing atmospheric CO₂. In this work, a techno-economic analysis was performed for a CDR process utilizing low temperature pyrolysis of biomass to sequester carbon as solid char. A simplified product mixture was modeled to predict biomass pyrolysis yields at different temperatures based on their C-H-O composition; this was incorporated into a process simulation in Aspen Plus V14.0 to generate mass and energy balances. The equipment costs were calculated using Aspen Capital Cost Estimator V14.0 for a 2000 dry MT biomass per day facility processing woody feedstock containing 30 wt% moisture.

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