Techno-Economic Screening Analysis of CO2 Removal Through Enhanced Weathering

Conference · Mon Aug 05 04:00:00 EDT 2024

DOI:https://doi.org/10.2172/2452808· OSTI ID:2452808

Leptinsky, Sarah ^[1]; Homsy, Sally ^[2]; Mantripragada, Hari ^[1]; Woods, Mark ^[1]; Fout, Tim ^[3]

---

1. NETL Site Support Contractor, National Energy Technology Laboratory
2. NETL
3. National Energy Technology Laboratory (NETL)

Terrestrial enhanced weathering has emerged as a technology of interest due to its simplicity, low energy requirement, and potentially low capital investment requirement. Due to the novelty of this technology, there is limited literature exploring the techno-economics of the process. This presentation reports on a screening techno-economic analysis that examines the impact of key factors that influence terrestrial enhanced weathering performance and cost. Two cases are considered for analysis, based on the material used: (1) Naturally occurring mined igneous rock (2) Industrial waste materials (like biomass ash or cement kiln dust) The analysis considers locating the terrestrial enhanced weathering system in the Midwestern United States, because of proximity to alkaline materials, availability of farmland, and appropriate ambient conditions for weathering. For the igneous rock case, the size of the system is based on the average amount of igneous rock available from a single mine—250,000 tonnes/year. For the industrial waste case, the size of the system is based on the amount of suitable waste material produced by an industrial hub—150,000 tonnes/year.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: USDOE Office of Fossil Energy and Carbon Management (FECM)
• OSTI ID: 2452808
• Country of Publication: United States
• Language: English