Biofuel or biofuel? It's necessary to choose !

crude vegetable oil, diester, bio-ethanol or other biofuels, or fuel of vegetable origin ...
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Lietseu
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by Lietseu » 05/10/08, 19:58

O. Fournier wrote:Hello,

I just signed up after having searched in Google for "airplane + electric" (the life-size one, 9 m wingspan which flew in the south of France)! ......
Well, will have to find something else ... MDR!


Hello O (livier?) Fournier, I have all the more pleasure in welcoming you as we are virtually neighbor ... (not far from ... Lanquais)

An answer for the future?

Ethanol: sweet potato more profitable than corn!
http://www.bulletins-electroniques.com/ ... /56005.htm
According to experiments conducted by scientists from the Agricultural Research Agency (ARS), in the states of Maryland and Alabama, sweet potatoes provide two to three more carbohydrates than corn. The same result was obtained for cassava in the state of Alabama.
The carbohydrate yield of a plant is directly linked to the yield of bioethanol production. Two basic steps are involved in the production of bioethanol: hydrolysis and fermentation. Hydrolysis is a chemical reaction, accelerated by enzymes (cellulases), which break down carbohydrate chains, into organic compounds. Fermentation breaks down organic compounds into alcohols such as bioethanol.

According to these studies, the carbohydrate yields of sweet potato approach those of sugarcane which is the most interesting plant for the production of bioethanol. Another benefit of sweet potatoes and cassava is that they require much less fertilizer and pesticide than corn.

This study was conducted by Lew Ziska, an ARS plant physiologist in Beltzville, Maryland with support from other scientists at the ARS National Soil Dynamics Laboratory in Auburn, Alabama. The research was done by comparing the carbohydrate yields of each plant. The results show that for the same growing and harvesting conditions, the sweet potato provided 10.5 tonnes of carbohydrate / hectare, while the corn yields only 3.7 tonnes / hectare. The cultivation of sweet potatoes for the production of bioethanol is therefore seriously to consider. However, further studies are still needed to determine the fertilizer, water and pesticide requirements for such crops for energy efficiency assessments.

The primary objective of this study is to try to develop new sources of organic fuels without reducing the supplies intended for human and animal food. Indeed, the production of bioethanol from corn is identified as one of the causes of the current global food crisis. It is therefore essential to diversify agricultural raw materials for bioenergy production.




Good evening to all :D

About the economic crisis….
With traditional greetings from Lietseu
Today we are waiting, tomorrow we will be in the tent.
A. Roumanoff (we are not told everything)
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By removing Human Nature, he was far from his nature! Lietseu
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by Lietseu » 05/10/08, 20:47

And also, this:

UK: 10% of fuel needs thanks to bacteria

At a general microbiology conference at Trinity College in Dublin, scientists agreed on the following hypothesis: If we used bacteria - the same as those found in compost heaps - to convert waste into ethanol, it would then be possible to supply up to 10% of energy needs in the transport sector in the United Kingdom.
The Guildford Researchers have successfully developed a new strain of bacteria that has the ability to digest straw, agricultural plant residues, cardboard, wood chips and other municipal waste to convert into fuel renewable useful for the transportation industry.

The new strain of bacteria can produce much more ethanol more efficient ways and at a lower cost compared to traditional yeast fermentation, commonly used in the commercial production of bioethanol.

Scientists estimate that about 7 million tons of surplus straw is available in the UK each year. Turned into ethanol, a substitute could replace 10% of the gasoline consumed in the country.

"Our new microorganism, called TM242, can efficiently convert sugars from woody biomasses to ethanol. This thermophilic bacterium works at high temperatures, between 60 and 70 ° C and digests a wide range of raw materials very quickly," said the director of fermentation development for TMO Renewables.


(src: Enerzine)
There is hope, let's keep smiling and move on to tomorrow

With greetings from Lietseu :P
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By removing Human Nature, he was far from his nature! Lietseu

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One sees clearly only with the heart, the essential is invisible to the eyes ...
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by C moa » 07/10/08, 09:14

Lietseu wrote:
Ethanol: sweet potato more profitable than corn!
http://www.bulletins-electroniques.com/ ... /56005.htm
According to experiments conducted by scientists from the Agricultural Research Agency (ARS), in the states of Maryland and Alabama, sweet potatoes provide two to three more carbohydrates than corn. The same result was obtained for cassava in the state of Alabama.

Very interesting all that except that the sweet potato and the foufou (cassava) are BASIC food products in many African countries !!!

I sincerely hope that these studies will remain in the state ... of study.
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by Lietseu » 07/10/08, 16:17

we need the advice of an agricultural specialist!

What seems interesting to me is the side, I push everywhere with not much of this tuber (as I'm having a good time!)
heheheheh!

Salutation :P
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By removing Human Nature, he was far from his nature! Lietseu

"The power of love, must be stronger than the love of power" contemporary Lie Tzu?

One sees clearly only with the heart, the essential is invisible to the eyes ...
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by Gregconstruct » 07/10/08, 19:55

Very interesting angle of view my dear Lietseu! 8)
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by C moa » 07/10/08, 20:57

Lietseu wrote:we need the advice of an agricultural specialist!

What seems interesting to me is the side, I push everywhere with not much of this tuber (as I'm having a good time!)
heheheheh!

Salutation :P
Well excuse me for asking your forgiveness but even if these plants grew on stone without water, for me it would not make a difference, today they remain food plants therefore to banish. Know that they were not spared from the surge in raw materials.

In addition we are not deluding ourselves, today it grows in Africa so you think that the industrialists they will go to look for where their tuber? Well there !!! : Evil: : Evil:
And again we will have populations starving to death because some landowners will have sold their crops to the highest bidder.
And again, they will expand their operations by deforesting. Look at what happened with palm oil and the deforestation of primary forests on thousands and thousands of hectares ...

Please, there are lots of good ideas on this site but this one it would be good if we forgot it and buried it in the collective amnesia style like Jason Bourne.
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by Lietseu » 08/10/08, 12:04

Right and ... wrong, that's not the problem : Cheesy:

People who want to make liquid fuel ALREADY encroach on other agricultural land, when they don't deforest at all :frown:
All this business is M ... And where I join you, it's precisely there! : we cannot accept to ride with what we would have (in any case) to put in the belly of someone else, rather than in our engines : Evil:

I put this information on the thread for you to find it and so, We see the evolution of other ramblings that would kill father & mother to make us run on fuels, so that they do not lose their prestige!

You wanted my opinion Cmoa, well you have it!

Greetings from Lietseu :P
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By removing Human Nature, he was far from his nature! Lietseu

"The power of love, must be stronger than the love of power" contemporary Lie Tzu?

One sees clearly only with the heart, the essential is invisible to the eyes ...
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by C moa » 08/10/08, 14:32

You wanted my opinion Cmoa, well you have it!
Oh you know, I don't want anything but thank you very much for this additional information.
To be honest, considering your comments on other posts, I was surprised and I reacted above all to the following sentence:
What seems interesting to me is the side, I push everywhere with not much of this tuber


Sincerely.
C moa
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Lietseu
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by Lietseu » 08/10/08, 16:39

This confirms our fears ...

http://www.enerzine.com/6/6027+biocarbu ... ions+.html

see other topics, blue link at the bottom of the page ...

Greetings from Lietseu :P
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One sees clearly only with the heart, the essential is invisible to the eyes ...

 


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