<div dir="ltr"><div>Art <br><br>Thank you for the explanation, <br><br>I knew they used natural gas, but had no idea of the process.<br><br></div>Greg Manning<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Sun, May 11, 2014 at 9:28 PM, Art Krenzel <span dir="ltr"><<a href="mailto:phoenix98604@msn.com" target="_blank">phoenix98604@msn.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div dir="ltr">Dr. Karve,<div><br></div><div>The Haber Bosch Process is used to convert hydrogen from natural gas and nitrogen from air into ammonia. Yes, it is an energy intensive process. </div><div><br></div><div>
See: <a href="http://en.wikipedia.org/wiki/Haber_process" target="_blank">http://en.wikipedia.org/wiki/Haber_process</a></div><div><br></div><div><font color="#2672ec"><span style="font-family:sans-serif;font-size:14px;line-height:22.399999618530273px;background-color:rgb(255,255,255)">This conversion is typically conducted at 15–25 </span><a href="http://en.wikipedia.org/wiki/Pascal_(unit)" title="Pascal (unit)" style="text-decoration:none;background-image:none;background-color:rgb(255,255,255);font-family:sans-serif;font-size:14px;line-height:22.399999618530273px" target="_blank">MPa</a><span style="font-family:sans-serif;font-size:14px;line-height:22.399999618530273px;background-color:rgb(255,255,255)"> (2,200–3,600 </span><a href="http://en.wikipedia.org/wiki/Pounds_per_square_inch" title="Pounds per square inch" style="text-decoration:none;background-image:none;background-color:rgb(255,255,255);font-family:sans-serif;font-size:14px;line-height:22.399999618530273px" target="_blank">psi</a><span style="font-family:sans-serif;font-size:14px;line-height:22.399999618530273px;background-color:rgb(255,255,255)">) or 150–250 </span><a href="http://en.wikipedia.org/wiki/Bar_(unit)" title="Bar (unit)" style="text-decoration:none;background-image:none;background-color:rgb(255,255,255);font-family:sans-serif;font-size:14px;line-height:22.399999618530273px" target="_blank">bar</a><span style="font-family:sans-serif;font-size:14px;line-height:22.399999618530273px;background-color:rgb(255,255,255)"> and between 300–550 °C (572–1,022 °F), as the gases are passed over four beds of </span><a href="http://en.wikipedia.org/wiki/Catalyst" title="Catalyst" style="text-decoration:none;background-image:none;background-color:rgb(255,255,255);font-family:sans-serif;font-size:14px;line-height:22.399999618530273px" target="_blank">catalyst</a><span style="font-family:sans-serif;font-size:14px;line-height:22.399999618530273px;background-color:rgb(255,255,255)">, with cooling between each pass so as to maintain a reasonable </span><a href="http://en.wikipedia.org/wiki/Equilibrium_constant" title="Equilibrium constant" style="text-decoration:none;background-image:none;background-color:rgb(255,255,255);font-family:sans-serif;font-size:14px;line-height:22.399999618530273px" target="_blank">equilibrium constant</a><span style="font-family:sans-serif;font-size:14px;line-height:22.399999618530273px;background-color:rgb(255,255,255)">. On each pass only about 15% conversion occurs, but any unreacted gases are recycled, and eventually an overall conversion of 97% is achieved.</span><sup style="line-height:1;font-family:sans-serif;background-color:rgb(255,255,255)"><a href="http://en.wikipedia.org/wiki/Haber_process#cite_note-Appl-1" style="text-decoration:none;background-image:none;white-space:nowrap" target="_blank">[1]</a></sup></font><br>
<br>Art Krenzel <br><br><br><br><br><div>> Date: Mon, 12 May 2014 07:29:51 +0530<br>> From: <a href="mailto:adkarve@gmail.com" target="_blank">adkarve@gmail.com</a><br>> To: <a href="mailto:biochar-policy@yahoogroups.com" target="_blank">biochar-policy@yahoogroups.com</a>; <a href="mailto:gasification@lists.bioenergylists.org" target="_blank">gasification@lists.bioenergylists.org</a><br>
> Subject: Re: [Gasification] Tennessee company - pyrolysis biochar + hydrogen ($1.75 per gallon diesel-equivalent?)<div><div class="h5"><br>> <br>> Dear Greg,<br>> the major component of natural gas is methane. How does the fertilizer<br>
> industry separate out hydrogen from methane? The process must be<br>> consuming a lot of energy.<br>> Yours<br>> A.D.Karve<br>> <br>> On Sun, May 11, 2014 at 9:02 AM, Anand Karve <<a href="mailto:adkarve@gmail.com" target="_blank">adkarve@gmail.com</a>> wrote:<br>
> > Dear List,<br>> > Already in the first decade of the last century, Haber in Germany<br>> > developed a process for making ammonia by combining nitrogen in the<br>> > air with hydrogen. I was told that this process is used even today by<br>
> > fertilizer manufacturers. Where does the fertilizer industry get its<br>> > hydrogen from?<br>> > Yours<br>> > A.D.Karve<br>> ><br>> > On Fri, May 9, 2014 at 8:59 PM, John Bonitz <a href="mailto:john.bonitz@gmail.com" target="_blank">john.bonitz@gmail.com</a><br>
> > [biochar-policy] <<a href="mailto:biochar-policy@yahoogroups.com" target="_blank">biochar-policy@yahoogroups.com</a>> wrote:<br>> >><br>> >><br>> >> Return of the Pyromaniax: Proton Power and its hydrous pyrolysis process for<br>
> >> super low-cost hydrogen, by Jim Lane, May 8, 2014<br>> >><br>> >> <a href="http://www.biofuelsdigest.com/bdigest/2014/05/08/return-of-the-pyromaniax-proton-power-and-its-hydrous-pyrolysis-process-for-super-low-cost-hydrogen/" target="_blank">http://www.biofuelsdigest.com/bdigest/2014/05/08/return-of-the-pyromaniax-proton-power-and-its-hydrous-pyrolysis-process-for-super-low-cost-hydrogen/</a><br>
> >><br>> >><br>> >><br>> >> John Bonitz<br>> >> Pittsboro, NC<br>> >><br>> >> <a href="tel:919-360-2492" value="+19193602492" target="_blank">919-360-2492</a> | LinkedIn<br>
> >><br>> >> ~~~~~~~~~~~~~<br>> >><br>> >><br>> >> _______________________________________________<br>> >> Gasification mailing list<br>> >><br>> >> to Send a Message to the list, use the email address<br>
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> ><br>> ><br>> ><br>> > --<br>> > ***<br>> > Dr. A.D. Karve<br>> > Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)<br>> <br>> <br>> <br>> -- <br>
> ***<br>> Dr. A.D. Karve<br>> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)<br>> <br>> _______________________________________________<br>> Gasification mailing list<br>
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