Hi Pete, Another way to answer your question: The none condensible combustible gas of CO and H2 form in the same way by reduction and decomposition of water like you say, even though bed temperatures of these finer packed beds appear lower than conventional wood gasifiers. At the micro level interstitial space between the carbon and siliceous ash, very localized high exothermic temperature exists to make permanent gas (over 850C) but not enough to convert all the hydrocarbons (usually lumped together as C4's) which will condense and are caught in the scrubber water.
It probably is worth mentioning that one fix doesn't suit all, and any discussion should state specially the fuel type, and or method of gasification, but cleaning tar gas still requires a reasonably affordable resolution. Hope this was useful. Doug Williams. Fluidyne. On Mon, 4 Jan 2016 11:15:42 -0600 "Pete & Sheri" <[email protected]> wrote: > “Crop residues are best gasified at low temperatures. Low temperatures > generate tars” > > > > Does this mean that a high percentage of the combustable gas is actually > hydrocarbons, etc. released by heating the residue, rather than from the > reduction of CO and decomposition of water? > > > > Pete Stanaitis _______________________________________________ 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/
