Storage restrictions and the preference for CO(sub 2) removal options

摘要

Carbon dioxide storage is a conditio sine qua non for carbon dioxide removal, i.e. recovery from fossil fuel conversion and storage in reservoirs outside the atmosphere. CO(sub 2) storage capacity restrictions determine the cost-effectiveness of CO(sub 2) removal techniques, preferring low-carbon high energy yield options. This is demonstrated in energy system model calculations, with variable CO(sub 2) storage capacities and variable targets for CO(sub 2) emission reduction. With restricted storage capacity the preference for CO(sub 2) removal changes, from coal/synfuels to coal/power to gas/hydrogen conversion processes, at higher costs. 4 figs., 3 tabs., 3 refs.