>From a brief literature review we did on mitigation options that are a bit out of the ordinary:
There are several naturally occurring minerals that react with and fixate CO2 from the air, most notably metal silicates that form upon reaction with CO2 the corresponding metal carbonate and solid silica. The best known of these is olivine ((Mg,Fe)2SiO4), which is found in e.g. peridotite rock formations. The reaction is exothermic (i.e. energy producing) but slow. It requires energy to speed up the reaction to meaningful rates, and its energy use is close to the break- even point of equivalent CO2 displacement [IPCC SRCCS, 2005], though different sources come to different conclusions in this respect [Kelemen and Matter, 2008; Schuiling and Krijgsman, 2006]. According to Lackner (2002; 2003), once the CO2 is bound to the mineral, it won’t return to the atmosphere: the sequestration is practically permanent. In the case of leaching, additional CO2 would be bound in the transformation of solid magnesium carbonate to dissolved magnesium bicarbonate [Lackner, 2002]. The whole report is available here as pdf: http://www.kennisvoorklimaat.nl/nl/25222685-KVK_Nieuws.html?opage_id=25222957&location=1942795406124146,10303825,true,true With a thorough discussion of biomass and slightly less thorough of geoengineering, air capture and other options. Bart http://ourchangingclimate.wordpress.com/ On Jun 8, 2:49 pm, "Nolin, Kenneth M." <[email protected]> wrote: > Thanks oh by the way I am working with the inventor to help him > commercialize. I will have a power point in a few days. > Thanks > Kenny nolin > 225-773-3952 > > > > ----- Original Message ----- > From: [email protected] <[email protected]> > To: [email protected] <[email protected]> > Sent: Mon Jun 08 07:41:28 2009 > Subject: [Global Change: 3228] Re: Use olivine to remove carbon dioxide? > > From: "David B. Benson" <[email protected]> > > Newsgroups: gmane.science.general.global-change > To: "globalchange" <[email protected]> > Sent: Monday, October 06, 2008 6:29 PM > Subject: [Global Change: 2930] Re: Use olivine to remove carbon dioxide? > > > On Oct 5, 11:48 pm, "[email protected]" <[email protected]> > > wrote: > >> ... Here's his > >> literature review: > > >>http://www.ecn.nl/docs/library/report/2003/c03016.pdf > > > Thank you. A useful read. > > From a private message sent by "Kenny", an interesting set of engineering > solutions is arrayed here (where a broadband connection gives a big boost to > your viewing pleasure): > > >See A2engineeringgroup website for using olivine and reacting with > >CO2. See the Hydrofuel part. A lot of information. it apparently > >reacts in seconds in this process. Looks real promising. > > > http://www.a2engineeringgroup.com > > -dl- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
