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<body class='hmmessage'><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;">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;">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;">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" class="mw-redirect" style="text-decoration: none; background-image: none; background-color: rgb(255, 255, 255); font-family: sans-serif; font-size: 14px; line-height: 22.399999618530273px;">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;">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 id="cite_ref-Appl_1-1" class="reference" style="line-height: 1; unicode-bidi: -webkit-isolate; 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;">[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: adkarve@gmail.com<br>> To: biochar-policy@yahoogroups.com; gasification@lists.bioenergylists.org<br>> Subject: Re: [Gasification] Tennessee company - pyrolysis biochar + hydrogen ($1.75 per gallon diesel-equivalent?)<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 <adkarve@gmail.com> 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 john.bonitz@gmail.com<br>> > [biochar-policy] <biochar-policy@yahoogroups.com> 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>> >> http://www.biofuelsdigest.com/bdigest/2014/05/08/return-of-the-pyromaniax-proton-power-and-its-hydrous-pyrolysis-process-for-super-low-cost-hydrogen/<br>> >><br>> >><br>> >><br>> >> John Bonitz<br>> >> Pittsboro, NC<br>> >><br>> >> 919-360-2492 | LinkedIn<br>> >><br>> >> ~~~~~~~~~~~~~<br>> >><br>> >><br>> >> _______________________________________________<br>> >> Gasification mailing list<br>> >><br>> >> to Send a Message to the list, use the email address<br>> >> Gasification@bioenergylists.org<br>> >><br>> >> to UNSUBSCRIBE or Change your List Settings use the web page<br>> >> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org<br>> >><br>> >> for more Gasifiers, News and Information see our web site:<br>> >> http://gasifiers.bioenergylists.org/<br>> >><br>> ><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>> <br>> to Send a Message to the list, use the email address<br>> Gasification@bioenergylists.org<br>> <br>> to UNSUBSCRIBE or Change your List Settings use the web page<br>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org<br>> <br>> for more Gasifiers, News and Information see our web site:<br>> http://gasifiers.bioenergylists.org/<br></div></div> </div></body>
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