期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 5, 期 9, 页码 8631-8641出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ee22180b
关键词
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资金
- Joint Institute for Strategic Energy Analysis
- University of Colorado-Boulder
- Colorado School of Mines
- Colorado State University
- Massachusetts Institute of Technology
- Stanford University
This study builds a holistic, transparent life cycle assessment model of a variety of aqueous mineral carbonation processes using a hybrid process model and economic input-output life cycle assessment approach (hybrid EIO-LCA). The model allows for the evaluation of the tradeoffs between different reaction enhancement processes while considering the larger lifecycle impacts on energy use and material consumption. A preliminary systematic investigation of the tradeoffs inherent in mineral carbonation processes is conducted to provide guidance for the optimization of the life-cycle energy efficiency of various proposed mineral carbonation processes. The life-cycle assessment of aqueous mineral carbonation suggests that a variety of alkalinity sources and process configurations are capable of net CO2 reductions. The total CO2 storage potential for the alkalinity sources considered in the U. S. ranges from 1.8% to 23.7% of U. S. CO2 emissions, depending on the assumed availability of natural alkalinity sources and efficiency of the mineral carbonation processes.
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