Poster's note : Attached is an unpublished Schulling paper for comment, circulated with the author's permission. NB this has not been through peer review. I suggest the metal spheres method would be much less effective than using a solar mirror trough or vacuum tube for heating. However, blasting and grinding olivine before dumping in on or near beaches seems to me a far more practical method overall.
Injection of seawater into Oman ophiolites to capture CO2 R.D.Schuiling Abstract The Semail nappe in Oman is the largest ophiolite complex in the world. Mineral carbonation of their olivine could play a role in the reduction of CO2 levels in the atmosphere. In this paper it is proposed to split the reaction of the olivine and the capture of CO2 in two parts. The first part is the reaction of seawater which must be injected in olivine-rich rocks, by which the water becomes alkaline. The water must not be drawn from the Indian Ocean directly, but from a shallow lagoon connected to the Indian Ocean. By covering this lagoon with a layer of floating black hollow metallic spheres, the inlet water is pre-heated, causing the rate of reaction to increase. The second part is the uptake of CO2 from the atmosphere by these high pH waters. Many saline springs in the Oman ophiolites have extremely high pH-values up to pH 12, showing that the proposed process is already operating at a modest scale in nature. Keywords: Oman; Semail ophiolites; Seawater injection; CO2 sequestration. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
Oman2.doc
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