Talk:Biomass to liquid
![]() | This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||
|
![]() | The contents of the Grassoline page were merged into Biomass to liquid on 25 January 2017. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
German Wikpedia
editThe German wikipedia has more informations to this article! —Preceding unsigned comment added by 192.129.26.10 (talk) 20:41, 13 April 2008 (UTC)
Fungi
editThis was posted on the Biodiesel page, but isn't biodiesel by chemical definition. It is interesting, however. Where should it be placed?
A tree fungus, gliocladium roseum, has been found to excrete a mixture of hydrocarbons very similar to diesel fuels, as well as having the ability to digest cellulose. [1]
--E8 (talk) 03:30, 4 November 2008 (UTC)
- Why would this not be biodiesel? General definition: "Biodiesel is a domestic, renewable fuel for diesel engines derived from natural oils like soybean oil, and which meets the specifications of ASTM D 6751." Technical definition: "Biodiesel, n—a fuel comprised of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats, designated B100, and meeting the requirements of ASTM D 6751." http://biodiesel.org/what-is-biodiesel/biodiesel-basics Juzhong (talk) 11:22, 4 November 2008 (UTC)
- The "mycodiesel", as described in the only non-technical sources available, appears to be formed of alkanes rather than mono-alkyl esters, and as such, they are chemically different (very different functional groups). Thus, it's not biodiesel, which is specifically esters.--E8 (talk) 14:22, 4 November 2008 (UTC)
- It produces " acetic acid esters of straight-chained alkanes" among other things. [1] Juzhong (talk) 23:42, 4 November 2008 (UTC)
- Ah, that's a much better source. It's still not biodiesel, though there appears to be definite feedstock potential. This is an important piece of information:
- It produces " acetic acid esters of straight-chained alkanes" among other things. [1] Juzhong (talk) 23:42, 4 November 2008 (UTC)
- The "mycodiesel", as described in the only non-technical sources available, appears to be formed of alkanes rather than mono-alkyl esters, and as such, they are chemically different (very different functional groups). Thus, it's not biodiesel, which is specifically esters.--E8 (talk) 14:22, 4 November 2008 (UTC)
G.roseum can make such important fuel-based compounds, including fatty acids, from a cellulose-based medium, it would seem that a much larger search for such organisms in our natural environment needs to be launched.
The paper does mention biodiesel, albeit in a obfuscated fashion:
Other fungal lipids. ‘Bio-diesel’ is a term that suggests a biological source of compounds that can effectively be used to run a diesel engine. Commonly, these compounds are primarily long-chained fatty acids derived from the hydrolysis of di- and triglycerides produced by higher plants and algae. Thus, in order to determine if any of these non-volatile lipids are produced by G. roseum in culture, the organism was grown for 30 days, with shaking, at 23 uC in 1 litre of medium G (in a 2 litre flask). The yeast extract used in the medium had been thoroughly extracted at least twice with methylene chloride in order to remove lipids. After incubation, the fungus was removed by filtration and the liquid extracted with two equal volumes of methylene choride and taken to dryness by flash evaporation at 40 uC. TLC was performed, employing standard compounds as references in
the following solvent systems: A, chloroform/methanol (9 : 1, v/v); B, toluene/ethyl acetate (8 : 2, v/v); and C, methylene chloride/methanol (6 : 4, v/v). Compounds were detected after spraying with the anisaldehyde/ vanillin and sulfuric acid reagent (Stahl, 1969; Cardellina, 1991). Similar methods were applied to an identical medium that had not been inoculated with the fungus, as a control.
Good find for a source. I'll repost some of the information along with this source; it will need some work / addition though. I suspect there will be a Mycodiesel page soon, too.--E8 (talk) 00:27, 5 November 2008 (UTC)
Pyrolysis
editThe article lists Flash Pyrolysis which is a relatively new process that produces biochar as a byproduct.
Should the article also list standard Pyrolysis which completely reduces the material leaving coke (Carbon) which contains some inorganic plant nutrents (mostly Phosphorus & Potassium). This coke can be used to produce Syngas for the Fischer Tropsch process and the plant nutrents can be recycled.
Actually, the Fischer Tropsch process does not use Biomass as an input but rather it uses Syngas made from coke made from biomass. As the first paragraph states, a multi-step process, however, this is not made clear.
References
- ^ "Scientists discover Patagonian diesel that grows on trees". The Guardian. 2008-11-04. Retrieved 2008-11-04.
{{cite news}}
: Italic or bold markup not allowed in:|publisher=
(help)
Uncited Claim
editI have a problem with this statement: "The result is that for BTL, less land area is required per unit of energy produced compared with biodiesel or bioethanol." That's a big claim (and it isn't made in the Fischer–Tropsch process article). I'd believe that if it made the exceptions of using only the waste products from other crop production, and using them only as a source of carbonaceous material to be gasified; but if you're using biomass (instead of, say, coal) as a feedstock, then you'd probably be using the same biomass as a fuel, too, and that would ruin the conversion efficiency (probably to below that of conventionally produced ethanol). I'll be removing it (and possibly the sentance after it) if it can't be sourced. Mysterious Whisper (SHOUT) 18:54, 29 June 2012 (UTC)
Merge proposal
editI propose to merge Grassoline into this article as it is about the same biomass to liquid process. Beagel (talk) 16:32, 16 February 2014 (UTC) Done
External links modified
editHello fellow Wikipedians,
I have just modified 2 external links on Biomass to liquid. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
- Added archive https://web.archive.org/web/20060518114543/http://www.fas.usda.gov:80/pecad/imagery_archive/highlights/2005/01/btl0104/syntheticdiesel.htm to http://www.fas.usda.gov/pecad/imagery_archive/highlights/2005/01/btl0104/syntheticdiesel.htm
- Added archive https://web.archive.org/web/20050624085121/http://www.eere.energy.gov:80/biomass/enzymatic_hydrolysis.html to http://www.eere.energy.gov/biomass/enzymatic_hydrolysis.html
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}
).
This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}}
(last update: 5 June 2024).
- If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
- If you found an error with any archives or the URLs themselves, you can fix them with this tool.
Cheers.—InternetArchiveBot (Report bug) 23:33, 2 November 2016 (UTC)