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Biobutanol

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"Butanol from biomass is called biobutanol" Isn't biobutanol a brand name from dupont? --John Cumbers (talk) 17:36, 23 June 2008 (UTC)[reply]

Isomers

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I would like to see info about what isomers the fermentation processes produce. Butanol has 4 different ones. t-BuOH is unsuiatable on its own as it freezes at 25C--Oldboltonian 22:26, 4 June 2007 (UTC)[reply]

Production of butanol from biomass

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The sentence "The difference from ethanol production is primarily in the fermentation of the feedstock - producing butanol rather than ethanol like primary fermentation product and minor changes in distillation" is very awkward and I'm not able to be certain enough of its intended meaning to be comfortable revising it.

Does my attempt (below) convey the jist of the idea without factual flaws?

"The difference between butanol and ethanol production is primarily in the fermentation of the feedstock. Fermentation for butanol uses different microorganisms and there are some differences in the distillation process." —Preceding unsigned comment added by 139.78.95.188 (talk • contribs)

Pff .. the first sentence needs a higher degree in EN, but well, I think this says it. I must confess, I just copied this block from butanol, there might be some strange sentences still referring back to butanol. But I think I mainly agree with the 'translation' you propose (fuel is not my specialty, but at least is does sound chemically correct). Maybe in the second part ".. some minor differences in the distillation process." I think that someone would have to elaborate on that .. what differences? --Dirk Beetstra T C 17:35, 20 July 2006 (UTC)[reply]


Well, in my opinion the second sentence could be modified: "...and there are some differences in the downstream processing of the products." since the downstream processing of butanol is much more complicated than that of ethanol production (may involve gas stripping, adsorption-desorption, decantation, pervaporation, distillation, dehydration...etc.). -- meynardtengco -- 02:47, 10 September 2006 (PhilST)

Why neutrality tag?

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Can anyone tell me why this article has a neutrality tag? Certainly the prose needs refining to eliminate incomprehensible phrasing like that discussed above, but that doesn't actually relate to the article's neutrality in an immediately obvious way. If it is no longer necessary can it be removed? thanks User:Jaganath 11:47, 28 September 2006

Yeah, can't see any point in the tag. Have removed, whoever added it can add it again if they feel it is necessary and explain why. QuiteUnusual 15:05, 8 October 2006 (UTC)[reply]

Experts Needed!

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Can we get reputable, intelligent people to contribute to an article about a highly relevant alternative energy subject? Please, thank you. —Preceding unsigned comment added by 24.118.195.198 (talk) 00:02, 18 January 2008 (UTC)[reply]

Might add, some updates are needed. "As of early 2009, only few vehicles are approved for even using E85 fuel (i.e. 85% ethanol + 15% gasoline)in the USA." We've come a long way! Xenophonix (talk) 21:06, 2 December 2015 (UTC)[reply]

Octane Tables wrong

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Some of the octane ratings dont even reflect octane ratings found on other wiki pages, All data tables should have citations to reputable sources02:41, 17 April 2008 (UTC)

The air-fuel ratio table has the information of 9.0 for ethanol. Anhydrous ethanol has this air-fuel ratio. Hydrated ethanol (sold at Brazilian gas stations for dedicated E100 vehicles) has 8.33 air-fuel ratio. Leaving anhydrous ethanol to open air it sucks air humidity and hydrates itself. I should search in some studies and books about the other properties of hydrated ethanol. Laranjatomate (talk) 19:57, 20 February 2013 (UTC)[reply]

Butanol Smell?

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An older version of a (same or related) Wikipedia article mentioned the strong odor of butanol as a hindrance to public acceptance as a biofuel. I recall it was described like "smelly socks". It seems worthy of mention (to me) if true, but I'd defer to an expert for the confirmation of fact and inclusion. Poppafuze (talk) 00:33, 5 September 2008 (UTC)[reply]

Need a chemistry expert. As I understand it, undergrad chemistry students are well aware of the smell of butanol, though "smelly socks" might be considered a weak euphemism. I can't provide the cite for this, but perhaps a chemistry student could. Xenophonix (talk) 21:05, 2 December 2015 (UTC)[reply]

Physical properties (including odor) can be found in PubChem and other standard resources. Various isomers exist for butanol, and each isomer has its own set of physical properties. The odor of n-butanol (just one isomer of butanol) is compared (on PubChem) to alcohol and banana. KristinaLu (talk) 19:49, 18 October 2019 (UTC)[reply]

contradicting; misleading; expert-subject

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Any info on what the perceived problems are? What specifically is wrong/suspect with the article?

Deleted content

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This paragraph was deleted with no comment:

The key research challenge that must be resolved is that butanol production inhibits microbial growth even at low concentrations. The result is that the product of the fermentation is less than 2% butanol. The overwhelming majority of the fermentation broth is water, so an energy-intensive distillation step is required for purification. This may be acceptable if the goal is to produce butanol for use as a solvent, but if butanol is to gain traction as a motor fuel, energy inputs into the process need to be minimized.<ref> [http://i-r-squared.blogspot.com/2007/06/problem-with-biobutanol.html R-Squared Energy Blog].</ref>

I didn't restore it because it refs a blog. If this is valid, please restore it. NJGW (talk) 22:35, 18 January 2009 (UTC)[reply]

I've written the author of that blog entry, who is apparently an expert on butanol production. Yakushima (talk) 12:33, 28 August 2010 (UTC)[reply]

Not NPOV

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I believe this phrase, under "Research", does not constitute NPOV: "Yeasts as production organisms for butanol have decisive advantages compared to bacteria". Reference is then made to a commercial operation's Web site, which kinda looks like spam. I'd like to see more on the subject from other sources.--Rfsmit (talk) 21:48, 24 March 2009 (UTC)[reply]

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"Genetically modified bacteria" section

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Not all bacteria used in the production of butanol are genetically modified. This section should really be reorganized, and possibly checked against some recent review articles in academic journals for NPOV and to make sure everything is current. If someone could propose a source (review) or two, I could verify if it's a good source for this article. Google Scholar is a great place to start. If an article is behind a paywall I might be able to help with that as well. I'm not sure if I will have time to trudge through the prose and editing process, though. KristinaLu (talk) 20:08, 18 October 2019 (UTC)[reply]

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