Chemical transport modeling of potential atmospheric CO2 sinks

N. A C Johnston, D. R. Blake, F. S. Rowland, S. Elliott, Klaus Lackner, H. J. Ziock, M. K. Dubey, H. P. Hanson, S. Barr

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The potential for carbon dioxide (CO2) sequestration via engineered chemical sinks is investigated using a three dimensional chemical transport model (CTM). Meteorological and chemical constraints for flat or vertical systems that would absorb CO2 from the atmosphere, as well as an example chemical system of calcium hydroxide (Ca(OH)2) proposed by Elliott et al. [Compensation of atmospheric CO2 buildup through engineered chemical sinkage, Geophys. Res. Lett. 28 (2001) 1235] are reviewed. The CTM examines land based deposition sinks, with 4° × 5° latitude/longitude resolution at various locations, and deposition velocities (v). A maximum uptake of ∼20 Gton (1015 g) Cyr-1 is attainable with v ≥ 5 cms-1 at a mid-latitude site. The atmospheric increase of CO2 (3 Gtonyr-1) can be balanced by an engineered sink with an area of no more than 75,000 km2 at v of 1 cms-1. By building the sink upwards or splitting this area into narrow elements can reduce the active area by more than an order of magnitude as discussed in Dubey et al.

Original languageEnglish (US)
Pages (from-to)681-689
Number of pages9
JournalEnergy Conversion and Management
Volume44
Issue number5
StatePublished - Mar 2003
Externally publishedYes

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Hydrated lime
Carbon dioxide
Compensation and Redress

Keywords

  • Carbon dioxide
  • Modeling
  • Sequestration

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment

Cite this

Johnston, N. A. C., Blake, D. R., Rowland, F. S., Elliott, S., Lackner, K., Ziock, H. J., ... Barr, S. (2003). Chemical transport modeling of potential atmospheric CO2 sinks. Energy Conversion and Management, 44(5), 681-689.

Chemical transport modeling of potential atmospheric CO2 sinks. / Johnston, N. A C; Blake, D. R.; Rowland, F. S.; Elliott, S.; Lackner, Klaus; Ziock, H. J.; Dubey, M. K.; Hanson, H. P.; Barr, S.

In: Energy Conversion and Management, Vol. 44, No. 5, 03.2003, p. 681-689.

Research output: Contribution to journalArticle

Johnston, NAC, Blake, DR, Rowland, FS, Elliott, S, Lackner, K, Ziock, HJ, Dubey, MK, Hanson, HP & Barr, S 2003, 'Chemical transport modeling of potential atmospheric CO2 sinks', Energy Conversion and Management, vol. 44, no. 5, pp. 681-689.
Johnston NAC, Blake DR, Rowland FS, Elliott S, Lackner K, Ziock HJ et al. Chemical transport modeling of potential atmospheric CO2 sinks. Energy Conversion and Management. 2003 Mar;44(5):681-689.
Johnston, N. A C ; Blake, D. R. ; Rowland, F. S. ; Elliott, S. ; Lackner, Klaus ; Ziock, H. J. ; Dubey, M. K. ; Hanson, H. P. ; Barr, S. / Chemical transport modeling of potential atmospheric CO2 sinks. In: Energy Conversion and Management. 2003 ; Vol. 44, No. 5. pp. 681-689.
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