Biofuel with Botryococcus Braunii

crude vegetable oil, diester, bio-ethanol or other biofuels, or fuel of vegetable origin ...
Christophe
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by Christophe » 23/03/09, 19:49

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chatelot16
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by chatelot16 » 17/01/12, 15:08

if an alga contains a high proportion of real oil, the extraction is not a problem: distill

I have already distilled a mixture of fuel oil, oil and various pigmeat: it makes good diesel, with a material quite easy to build

these algae interest me more and more

I also have some idea on how to absorb CO2 from smoke or exhaust gases, to recover it without giving toxic algae to the algae ... I study these means of capturing CO2 especially to purify methane biogas

the smoke from a wood heating is a real disinfectant that would kill all the algae if we smoked the smoke directly

or buy the right strain of algae?

how to feed them ... CO2 is not enough
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by dedeleco » 17/01/12, 20:36

chatelot16 wrote:if an alga contains a high proportion of real oil, the extraction is not a problem: distill

I have already distilled a mixture of fuel oil, oil and various pigmeat: it makes good diesel, with a material quite easy to build

these algae interest me more and more

I also have some idea on how to absorb CO2 from smoke or exhaust gases, to recover it without giving toxic algae to the algae ... I study these means of capturing CO2 especially to purify methane biogas

the smoke from a wood heating is a real disinfectant that would kill all the algae if we smoked the smoke directly

or buy the right strain of algae?

how to feed them ... CO2 is not enough


These algae exist in more or less living crude oil !!!
read the articles of my recent posts this morning, even for the fixation of CO2, polyethylenimine on silica foam:
answer in:
https://www.econologie.com/forums/post110330.html#110330
The strain comes from a friend who works on it too, he ordered it from an institution, the Institut Pasteur I believe.


In google and google scholar, by searching well, we will find information, except what is full industrial achievement.

This alga (several strains) grows 8 times slower than chlorella.

You have to put minerals, a bit like for Breton algae, to adjust for each type of algae (biotope), probably a little iron, which by its absence blocks life in the oceans (clay by the wind of the Sahara by example), and probably, the biotope contains a whole collection of bacteria and associated algae.
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by dedeleco » 18/01/12, 16:02

Information on this alga:
http://en.wikipedia.org/wiki/Botryococcus_braunii
it is toxic by its oil !!!

read also the study and this alga is found in fossil in petroleum sediments, because it is really an oil factory :
http://www.susquehannabiotech.com/Chemicals.pdf

Information for growing algae:
http://www.plantsci.cam.ac.uk/MeetTheAl ... trumps.pdf

A report on possibilities and studies:
http://www.wsgr.com/attorneys/NEWBIOS/P ... 022108.pdf

Extraction of these oils:
http://www.sciencedirect.com/science/ar ... 4611001732

Blocking info:
http://www.e-glop.net/divers/shamash.pdf

Optimal growth environment

Botryococcus braunii has been shown to grow best at a temperature of 23 ° C, a light intensity of 60 W / M², with a light period of 12 hours per day, and a salinity of 0.15 Molar NaCl. [3] However, this was the results of testing with one strain, and others certainly vary to some degree. In the laboratory, B. braunii is commonly grown in cultures of Chu 13 medium.

Blooms of Botryococcus braunii have been shown to be toxic to other microorganisms and fishes. The cause of the blooms and their subsequent damage to the populations of other organisms has been studied. The exudate of Bb in the form of free fatty acids has been identified as the cause. A higher alkalinity changes these free fatty acids into a form which is more toxic to other species, thus causing Bb to become more dominant. High alkalinity often occurs when ashes from burned areas are washed into a body of water. While the dominance of Bb can be seen as damaging to the environmental diversity of a body of water, the knowledge of how Bb can gain and maintain dominance is useful to those who intend to grow ponds of it as a fuel crop

The practice of farming cultivating is known as algaculture. Botryococcus braunii has great potential for algaculture because of the hydrocarbons it produces, which can be chemically converted into fuels. Up to 86% of the dry weight of Botryococcus braunii can be long chain hydrocarbons [4]. The vast majority of these hydrocarbons are botryocuccus oils: botryococcenes, alkadienes and alkatrienes. Transesterification can NOT be used to make biodiesel from Botryococcus oils. This is because these oils are not vegetable oils in the common meaning, in which they are fatty acid triglycerides. While Botryococcus oils are oils of vegetable origin, they are inedible and chemically very different, being triterpenes, and lack the free oxygen atom needed for transesterification. Botryococcus oils can be used as feedstock for hydrocracking in an oil refinery to produce octane (gasoline, aka petrol), kerosene, and diesel. [5] (see vegetable oil refining). Botryococcenes are preferred over alkadienes and alkatrienes for hydrocracking as botryococcenes will likely be transformed into a fuel with a higher octane rating.

Oils

Three major races of Botryococcus braunii are known, and they are distinguished by the structure of their oils. Botryococcenes are unbranched isoprenoid triterpenes having the formula CnH2n-10. The A race produces alkadienes and alkatrienes (derivatives of fatty acids) wherein n is an odd number 23 through 31. The B race produces botryococcenes wherein n is in the range 30 through 37 biofuels of choice for hydrocracking to gasoline-type hydrocarbons. The "L" strain makes an oil not formed by other strains of Botryococcus braunii. Within this major classification, various strains of Botryococcus will differ in the precise structure and concentrations of the constituent hydrocarbons oils. [6]

According to page 30 on Aquatic Species Program (ASP) report, [7] the A-strain of Botryococcus would not function well as a feedstock for lipid based fuel production due to its slow growth (one doubling every 72 hours). However, subsequent research by Qin showed that the doubling time could be reduced to 48 hours in its optimal growth environment. [3] In view of findings by Frenz [6], the doubling times may not be as important as the method of hydrocarbon harvest. The ASP also found A-strain Botryococcus oil to be less than ideal, having most of its lipids as C29 to C34 aliphatic hydrocarbons, and less abundance of C18 fatty acids. This evaluation of Bb oils was done in relation to their suitability for transesterification (ie creating biodiesel), which was the focus of the ASP at the time Bb was evaluated. The ASP did not study Bb oils for their suitability in hydrocracking, as some subsequent studies have done on the "B" race.

Botryococcus braunii (Bb) is a green, pyramid shaped planktonic microalga that is of potentially great importance in the field of biotechnology. Colonies held together by a lipid biofilm matrix can be found in temperate or tropical oligotrophic lakes and estuaries, and will bloom when in the presence of elevated levels of dissolved inorganic phosphorus. The species is notable for its ability to produce high amounts of hydrocarbons, especially oils in the form of Triterpenes, that are typically around 30-40 percent of their dry weight. [1] Compared to other green algae species it has a relatively thick cell wall that is accumulated from previous cellular divisions; making extraction of cytoplasmic components rather difficult. Fortunately, much of the useful hydrocarbon oil is outside of the cell.

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by dedeleco » 18/01/12, 19:12

Information on the formation of petroleum with this alga 90 million years ago, origin of 28% of current oil fields, with this thesis !!!
http://tel.archives-ouvertes.fr/docs/00 ... 004602.pdf
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by dedeleco » 18/01/12, 23:15

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by chatelot16 » 22/01/12, 14:14

polyethylenimine is used to capture low concentrations of CO2, for example to purify the air in a spacecraft

to capture the concentrated CO2 from the smoke from the boiler or exhaust gas, there is a simpler solution: absorption by water and lime

absorbing the CO2 from the air is not interesting, it is better to let the natural sensor do trees and other vegetation

this alga which likes the high dose of CO2 is interesting next to something else producing CO2: methanisation ... alcoholic fermentation

I happened to ferment lost fruit from my garden ... following the precaution taken it makes good alcohol ... or fuel, but it is also a source of very pure CO2

it is necessary to distinguish the effective exploitation of this alga to make fuel, and the conservation of pure algae strain and the experiments on this alga

an alcoholic fermentation is a good way to make pure CO2 without seeking profitability but to advance in experience

these algae seem to be quite sensitive to contamination by other algae or bacteria: it is therefore necessary to first control the conservation and culture of pure strain, and then do more to seek profitability

in a larger system there is more risk of contamination but whatever: these algae will end up being distilled

for the breeding of the seaweed strain it is quite possible to provide the nutrients by fertilizers or other chemical: whatever the profitability, it must first work! then it will certainly be possible to find the elements that you need cheaper where there are
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by dedeleco » 22/01/12, 15:22

This algae in its biotope makes explosions or "blooms" spontaneously, it is enough to reconstitute its biotope (it must be stressed too, so that it accumulates oil).

Blooms of Botryococcus braunii have been shown ...
The cause of the blooms and their subsequent damage to the populations of other organisms has been studied ....

Botryococcus braunii has been shown to grow best at a temperature of 23 ° C, a light intensity of 60 W / M², with a light period of 12 hours per day, and a salinity of 0.15 Molar NaCl

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Re: Biofuel with Botryococcus Braunii




by dolludo » 05/08/22, 10:05

Hello,

Very interesting subject for 10 years have you seen an evolution? Unfortunately, we see that the choice of electric cars is made by our dear government....

What about Botryococcus Braunii? does anyone have any info on this?

Thank you
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