When then is CDR not DAC? Greg Sent from the Rau's iPad
> On Aug 31, 2014, at 11:49 AM, Fred Zimmerman <[email protected]> > wrote: > > I am interested in recent plausible cost estimates of methods to remove CO2 > from the atmosphere whether they are chemical, mechanical, biotic, or other. > > >> On Sun, Aug 31, 2014 at 2:41 PM, Greg Rau <[email protected]> wrote: >> OK, then do the attached (with $ estimates) count? "Chemical engineering >> processes" potentially cover a lot of ground, including biochemical, >> geochemical, and electrochemical CO2 removal (?) I assumed that DAC only >> referred to abiotic CO2 removal where conc CO2 was the end product. >> Greg >> >> >> >> From: Andrew Lockley <[email protected]> >> To: Greg Rau <[email protected]> >> Cc: geoengineering <[email protected]> >> Sent: Saturday, August 30, 2014 11:50 AM >> Subject: RE: [geo] Re: what's new on cost estimates for DAC CDR? >> >> Mechanical / chemical engineering processes, eg as per Keith, Lackner, etc. >> A >> On 30 Aug 2014 18:37, "Rau, Greg" <[email protected]> wrote: >> What qualifies as "DAC CDR"? >> >> Greg >> From: [email protected] [[email protected]] on >> behalf of Fred Zimmerman [[email protected]] >> Sent: Friday, August 29, 2014 7:02 PM >> To: Mark Capron >> Cc: [email protected]; geoengineering >> Subject: Re: [geo] Re: what's new on cost estimates for DAC CDR? >> >> There are summaries of cost estimates in several of the articles referenced >> in this thread. There are values reported at pretty much every stop between >> $45 and $1000/ton. I am not sure that I find any of the estimates >> convincing as yet. I wonder if the size of global demand (whether >> industrial or governmental) is a bigger problem than cost. >> >> >> On Fri, Aug 29, 2014 at 8:56 PM, <[email protected]> wrote: >> Charlie, >> >> You mean a table or something like an updated McLaren chart, >> http://oceanforesters.org/References.html. The chart is at the bottom of >> the page. Duncan McLaren has produced this chart for a few years. His >> "2012 A comparative assessment..." (link near top of the same page) was >> published in the same journal with "Negative carbon via Ocean Afforestation." >> >> Mark E. Capron, PE >> Ventura, California >> www.PODenergy.org >> >> >> -------- Original Message -------- >> Subject: [geo] Re: what's new on cost estimates for DAC CDR? >> From: Charlie Zender <[email protected]> >> Date: Thu, August 28, 2014 1:51 pm >> To: [email protected] >> >> Fred, >> >> It would be a great contribution if you synthsized your review into a table >> of DAC CDR cost estimates which we could all view. >> >> Best, >> Charlie >> >> On Monday, August 25, 2014 10:17:58 PM UTC-7, Fred Zimmerman wrote: >> Hi -- >> >> I am updating a literature review on cost estimates for DAC CDR and I am >> wondering what has changed both empirically and analytically since the >> flurry of papers in 2011-2013 with APS, House, Keith, Lackner et al. >> >> >> Fred Zimmerman >> Ann Arbor, Michigan, USA >> "a fox, not a hedgehog" -- Isaiah Berlin >> -- >> 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. >> >> -- >> 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. >> -- >> 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. >> -- >> 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. >> >> >> -- >> 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. > > -- > 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. -- 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.
