Energy and CO2 Emissions Penalty Ranges for Geologic Carbon Storage Brine Management
| Autor: | Meagan S. Mauter, Timothy V. Bartholomew |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
geography
geography.geographical_feature_category Waste management chemistry.chemical_element General Chemistry 010501 environmental sciences 01 natural sciences Sink (geography) Salinity Carbon storage Brining chemistry Environmental Chemistry Environmental science Extraction (military) Tonne Carbon Energy (signal processing) 0105 earth and related environmental sciences |
| Zdroj: | Environmental Science & Technology. 55:4305-4313 |
| ISSN: | 1520-5851 0013-936X |
| Popis: | Safe and cost-effective geologic carbon storage will require active CO2 reservoir management, including brine extraction to minimize subsurface pressure accumulation. While past simulation and experimental efforts have estimated brine extraction volumes, carbon management policies must also assess the energy or emissions penalties of managing and disposing of this brine. We estimate energy and CO2 emission penalties of extracted brine management on a per tonne of CO2 stored basis by spatially integrating CO2 emissions from U.S. coal-fired electric generating units, CO2 storage reservoirs, and brine salinity data sets under several carbon and water management scenarios. We estimate a median energy penalty of 4.4-35 kWh/tonne CO2 stored, suggesting that brine management will be the largest post capture and compression energy sink in the carbon storage process. These estimates of energy demand for brine management are useful for evaluating end-uses for treated brine, assessing the cost of CO2 storage at the reservoir level, and optimizing national CO2 transport and storage infrastructure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|