<x-charset ISO-8859-1>Hello All. The lignin by product of the acid hydrolysis is not a poison. We produce ethanol from wood residue using the Gaian process of concentrated sulphuric acid hydrolysis. The Lignin is the carbon skeleton of the wood and has similar properties to Charcoal. In some processes a lignin sulphate compound is formed, but not in this process - that's more associated with the Kraft and sulphite paper industry. These versions of lignin find uses in the manufacture of resins, other forms of lignin are used as binders for road surfacing.
In our process we find the best use to be as a fuel, in fact we power our complete process using the combustion of the lignin produced in the hydrolysis stage, with a significant energy production over our requirements that we can produce electricity with the surplus steam. Concerning the reuse of the sulphuric acid, we recover and reuse, after reconcentrating it. Unfortunately we use a simulated moving bed chromatography process which is not 'suitable' for home use. The older was is to sacrifice the acid by neutralising it with lime which give a gypsum by-product which has little to no further use. For those who want a little more info on ethanol production from wood residue, there is a fairly detailed process review on our website www.gaianbioenergy.com Hope this helps Regards Fred Enga -----Original Message----- From: Pieter Koole Sent: February 27, 2004 7:27 PM To: biofuel@yahoogroups.com Subject: Re: [biofuel] A question about lignine Thanks Ken, I hope I don't insult anybody, but as far as I remember I found the way to make ethanol out of sawdust on journeytoforever. If the process produces poison material, why would it be on this site ? Met vriendelijke groeten, Pieter Koole The information contained in this message (including attachments) is confidential, and is intended for the addressee(s) only. If you have received this message in error please delete it and notify the originator immediately. The unauthorized use, disclosure, copying or alteration of this message is strictly forbidden. We will not be liable for direct, special, indirect or consequential damages arising from alteration of the contents of this message by a third party or in case of electronic communications as a result of any virus being passed on. ----- Original Message ----- From: "Ken Provost" <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Saturday, February 28, 2004 4:03 AM Subject: Re: [biofuel] A question about lignine > on 2/27/04 10:48 AM, Pieter Koole at [EMAIL PROTECTED] wrote: > > > Hi all, > > I am making ethanol on a very very small > > scale ( experimenting a bit ) from > > newspapers etc. > > What is the best thing to do with the > > black stuff ( lignine isn't it ? ). Is > > it poison ? Can I use it somehow? > > > > In general, any organic mixture that's BLACK > is toxic, probly carcinogenic. Blackness is > caused by multiple aromatic fused rings -- > polycyclic aromatic hydrocarbons, of which > graphite is the extreme version. Do a Google > search on polycyclic aromatic hydrocarbons. > > > > > Is there a way to re-use the sulphuric > > acid (98%) > > > > I don't think so > > > > > Does anyone know whether > > alcohol can be dried by > > electrolysis ? > > > > I've never heard of it -- doesn't mean it's > not possible somehow, but I doubt it.... -K > Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://infoarchive.net/sgroup/biofuel/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ </x-charset>
