I believe there was a math/typing error on the initial email 140,000 TPY X 2000 lbs/ton X 8,000 BTU/# = 2.24 X 10^12 BTU (not 10^24) Therefore 1.56/2.24 should equal about 69.6% conversion efficiency.
Art To: [email protected]; [email protected]; [email protected]; [email protected] Subject: Re: [Gasification] New Gasification Project From: [email protected] Date: Sun, 28 Sep 2014 17:03:51 -0400 Dear Listers, SASOL has a 45-49% total BTU conversion efficiency from coal to useful products, not just diesel fuel. When one takes the output BTU/input BTU which is 1.56 10^12 Btu/2.24 10^24, I can't see the conversion efficiency at 69%, as there are several zeros missing, or am I missing something? 140,000 ton x 2000 lbs x 8000 Btu = 2.24 10^24 Btu of wood 12 million x 130000 Btu = 1.56 10^12 Btu of diesel Jet Fuel is a fraction of the total diesel MW fractions typically made in FT processes and unless they go to a total wax product and then hydrocrack it back to jet fuel, as BP/Amoco did in their GTL project in Anchorage, the process gets quite complicated and inefficient. There are catalysts that will produce a 43% diesel MW spectra and limited CO2, CH4, and C5+ fractions, but most are in the 20-30% range, and the rest of the products have to be converted to the diesel MW range. There are some new catalysts that have excellent diesel range conversion efficiency with low cost, long lifetime, and this may be increased by changing the operating mode in the reactor. No one has tried the change in operating mode which to me is quite obvious from the reaction time needed to form the products. This combined with an intrinsic heat removal process makes for a radically different design. Sincerely, Leland T. "Tom" Taylor Thermogenics Inc. -----Original Message----- From: Art Krenzel <[email protected]> To: gasification <[email protected]> Sent: Sun, Sep 28, 2014 2:40 pm Subject: Re: [Gasification] New Gasification Project Mark, Kingsley Field is located near Klamath Falls, OR but Southwest Airlines has the fuel contractArt Art From: [email protected] To: [email protected] Date: Sun, 28 Sep 2014 11:52:01 -0700 Subject: Re: [Gasification] New Gasification Project Isn’t there a USAF base nearby to help them get rid of all of the jet fuel they’ll be making? M. From: Gasification [mailto:[email protected]] On Behalf Of Jeff Davis Sent: Sunday, September 28, 2014 10:38 AM To: Discussion of biomass pyrolysis and gasification Subject: Re: [Gasification] New Gasification Project 140,000 ton x 2000 lbs x 8000 Btu = 2.24 10^24 Btu of wood 12 million x 130000 Btu = 1.56 10^12 Btu of diesel 1.56 / 2.24 = 69% efficiency To get an idea of the amount of fiber: 140,000 / 20 ton (triaxle truck) = 7000 loads per year 7000 / 365 = 19 loads a day. Green wood would be more. Not counting the wood needed for the lumber. But those are baby log trucks compared to Michigan's trucks with pup trailers and 11 axles. No idea how much they can haul in Denver. Jeff On 09/27/2014 05:18 PM, Art Krenzel wrote: Red Rock Biofuels gets contract to provide jet fuel made from woody wastes via gasification process with Fischer-Tropsch conversion stage. http://www.thedenverchannel.com/news/local-news/fort-collins-biofuel-firm-red-rock-biofuels-strikes-deal-with-southwest-military Art Krenzel The Stone Age didn't end because we ran out of stones _______________________________________________ Gasification mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org for more Gasifiers, News and Information see our web site: http://gasifiers.bioenergylists.org/ _______________________________________________ Gasification mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org for more Gasifiers, News and Information see our web site: http://gasifiers.bioenergylists.org/
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