Progress on binding CO2 in mineral substrates

Klaus Lackner, Darryl P. Butt, Christopher H. Wendt

Research output: Contribution to journalArticle

149 Citations (Scopus)

Abstract

Based on current estimates of reserves, coal could satisfy even a very much increased world energy demand for centuries, if only the emission of CO2 into the atmosphere could be curtailed. Here we present a method of CO2 disposal that is based on combining CO2 chemically with abundant raw materials to form stable carbonate minerals. A major advantage of this method is that the resulting waste product is thermodynamically stable and environmentally neutral. It is therefore possible to store large quantities permanently with minimal environmental impact and without the danger of an accidental release of CO2 which has proven fatal in quantities far smaller than contemplated here. The raw materials to bind CO2 exist in nature in large quantities in ultramafic rocks. They are readily accessible and far exceed what would be required to bind all CO2 that could possibly be generated by burning the entire fossil fuel reserves. In this paper we outline a specific process that we are currently investigating. Our initial rough cost estimate of about 3¢/kWh is encouraging. The availability of a CO2 fixation technology would serve as insurance in case global warming, or the perception of global warming, would cause severe restrictions on CO2 emissions. If the increased energy demand of a growing world population is to be satisfied from coal, the implementation of such a technology would be unavoidable. Published by Elsevier Science Ltd.

Original languageEnglish (US)
JournalEnergy Conversion and Management
Volume38
Issue numberSUPPL. 1
StatePublished - 1997
Externally publishedYes

Fingerprint

Global warming
Raw materials
Minerals
Coal
Carbonate minerals
Insurance
Substrates
Fossil fuels
Environmental impact
Rocks
Availability
Costs

Keywords

  • Calcium oxide
  • Carbon dioxide disposal
  • Carbonate mineral
  • Emission control
  • Greenhouse effect
  • Magnesium oxide
  • Peridotite
  • Power plant emission
  • Serpentinite

ASJC Scopus subject areas

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

Cite this

Progress on binding CO2 in mineral substrates. / Lackner, Klaus; Butt, Darryl P.; Wendt, Christopher H.

In: Energy Conversion and Management, Vol. 38, No. SUPPL. 1, 1997.

Research output: Contribution to journalArticle

Lackner, Klaus ; Butt, Darryl P. ; Wendt, Christopher H. / Progress on binding CO2 in mineral substrates. In: Energy Conversion and Management. 1997 ; Vol. 38, No. SUPPL. 1.
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