Microalgae: BFS fuel plant plankton in Alicante

crude vegetable oil, diester, bio-ethanol or other biofuels, or fuel of vegetable origin ...
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by Christophe » 02/06/13, 10:06

Info to post instead here: https://www.econologie.com/forums/les-biocar ... t4504.html or there: https://www.econologie.com/forums/finis-les- ... t6106.html

On this subject, we are talking about oil algae, so not much to do with ethanol 2ieme generation ... except the fact that 2 is biofuel 2 or 3ieme generation ...
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by chatelot16 » 02/06/13, 13:49

Oleaginous algae produce a better fuel than ethanol

the oil can run the diesel so the camoins

the oil can be extracted by simple pressure: it is more economical than the fermentation of sweet products and the distillation to make ethanol
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by I Citro » 21/09/13, 15:14

I am not in favor of the use of fuels, regardless of their origin, in a heat engine, which we know that the yield does not exceed 30% ...

To move, the electric motor is the best current solution, until proven otherwise ...
The technology is already mature and available for purchase, it remains to develop and commercialize on a large scale to further reduce costs ...

Energy production by algae culture is a great idea.
I recently attended a conference where the French society Ennesys presented its achievements and current projects. 8)
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Their use of effluents for the production of energy thanks to the sun and algae is very relevant. But their intelligence is to reuse all this locally, not to say in isolation.
Thus they accumulate a number of advantages such as "air purification", the reduction of their water bill, and especially their energy bill, heat and electricity thanks to the COGENERATION.
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If they were to consider moving vehicles with their energy, the most effective would be to load electric vehicles, rather than fill the tanks of the dinosaurs that are our thermal vehicles and are comparable to the steam engines of the last century ...

A solution may emerge with fuel cells capable of using liquid fuels, but it is not yet operational, unlike the electric car battery.
:?
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by Christophe » 30/12/13, 15:58

PNNL scientists have created a continuous process capable of rapidly producing crude oil using algae as raw material.

http://www.youtube.com/watch?v=Av1fl6JSdsw
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by moinsdewatt » 31/12/13, 19:00

Algae oil: a process that only takes a few minutes

30 Dec 2013 enerzine

Scientists have succeeded in creating a continuous chemical process capable of producing crude oil in less than an hour, after obtaining green algae with the consistency of a pea soup.

........

http://www.enerzine.com/6/16719+du-petr ... utes+.html

good, experimentation of Pacific Northwest National Laboratory ''.
........able to treat 1,5 liter of suspended algae in the research reactor per hour. ''
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The system operates at about 350 ° C for a pressure of about 3.000 PSI,
then it will be necessary to give the enegetic performance of the operation.
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by I Citro » 01/01/14, 10:19

moinsdewatt wrote:The system operates at about 350 ° C for a pressure of about 3.000 PSI,
then it will be necessary to give the enégétique yield of the operation.
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I like to start the year on this kind of note. :D
Your nickname must be happy ...
I do not think oil should be used to move vehicles, as we do today. On the other hand, it has been used for certain plastics and a number of applications in chemistry, or it is easier to use than chemicals derived from cellulosic chemistry.
350 ° and 3000 PSI (ie 200Bar) are accessible values ​​with renewable energy such as geothermal energy, or possibly solar concentration ...

It therefore depends on the composition of the "oil" obtained ...
The cultivation of "oil" algae that I mentioned above is much more relevant and economical in terms of yield (the algae themselves draw energy from sunlight and from the CO2 that is brought to them by bubbling of the ambient air, which cleans up the air in the city somewhat ".
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by chatelot16 » 01/01/14, 14:12

the temperature of the reaction is not in itself a sign of energy consumption: it is important to know if the reaction is endothermic or not

if the reaction is not endothermic, a large industrial instalation can maintain 300 ° without much loss

it is a bit like the distillation of the oil: it requires the same kind of temperature but the refining of the oil consumes only a small part of this oil for the distillation

Conversely, the ethanol distillation only requires 100 ° C, but since there is a large quantity of water to boil in order to extract 5% ethanol, the consumption of energy from the distillation is enormous.

with the algae there is the same problem: a lot of water ... but it does not matter if it is enough that the balance is positive, that the energy consumed by this treatment only spoils a part of the algae

it does not matter if for the first experience we consume too much energy: it is necessary to experiment well

it's like the distillation of alcohol: when you do it with a simple still you consume more fuel to heat than the energy of the alcohol produced: in big industry the balance becomes positive, even if it is less good only for the distillation of petrol
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by Christophe » 25/02/14, 10:58

A new way of valorization of microalgae: direct bio methanation:

Researchers are developing a technology that can transform wet algal biomass into biogas compatible with today's natural gas infrastructure.

Biogas from microalgae is becoming an increasingly promising alternative to fossil fuels. This is demonstrated by researchers at the Paul Scherrer Institute (PSI) and EPFL.

As part of the SunCHem project, they have developed a process to grow microalgae and effectively convert them into synthetic natural gas, a biofuel that is fully compatible with our growing gas network. This innovative biomass-biogas continuous conversion technology was featured in an article published online at the end of January by the journal Catalysis Today.

While nature needs millions of years to turn biomass into biogas, this system does it in an hour. The secret of its speed lies in a process called hydrothermal gasification. The water rich in algae is first heated under pressure until it reaches a supercritical liquid state of about 400 ° C. It is then able to effectively dissolve the organic matter contained in the biomass. Inorganic salts become less soluble and are recovered in the form of a concentrate of nutrients. The residual solution is then gasified using a catalyst. This operation makes it possible to separate the water from the CO2 and a biogas rich in methane.

This approach is still five to seven times too expensive to compete with natural gas. But thanks to their many benefits, microalgae are not as contentious as other sources of biofuel. In particular, they can be grown in restraining ponds on non-arable land without encroaching on agricultural food production. If they need moisture, the algae are not difficult. Depending on the species, they can live in fresh or salt water, and could even be used in the near future to treat wastewater. A study published in 2013 estimates that between 1.8 and 5.8 energy units could be produced for each unit dedicated to generating biogas.

The entire system is also able to operate in a closed circuit, saving resources, reducing costs and increasing the overall efficiency of the process. "Certain nutrients, such as phosphate, are certainly limited but recoverable by gasifying biomass," explains Mariluz Bagnoud, co-leader of this publication. Their reintroduction into the water that hosts the algae has spectacular effects on their growth. "

Researchers have shown that it is possible to run the system continuously. However, they also found that looping back water and nutrients over long periods of time caused a deterioration in process performance. "We have detected the deactivation of a catalyst used in the gasification process," says Mariluz Bagnoud. We expect the accumulation of traces of aluminum, whose toxicity on microalgae depends on the pH. In a neutral environment, its harmful effects can be largely eliminated. The next step is to refine the process to increase the longevity of the sulfur-neutralized microalgae catalyst. "

Source:
Mariluz Bagnoud-Velásquez, Martin Brandenberger, Frédéric Vogel, Christian Ludwig; Continuous catalytic hydrothermal gasification of algal biomass and case study on the toxicity of aluminum as a step towards effluents recycling; Catalysis Today, volume 223
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by moinsdewatt » 11/10/15, 13:08

*** NOTICE OF DEATH: BFS IS NO LONGER ***

The end of BFS (Bio Fuel System)

07/10/2014

The activity of the company BFS (Bio Fuel System) has been stopped by a court decision following the request of investors, in the face of few tangible results. A fraud procedure is in progress. source: TOE 07 / 10 / 2014. In the past, CEVA had evaluated the technical-economic potential of BFS under the mandate of a few private companies. His conclusions were in line with the news. This event encourages us to read carefully our previous article.

http://www.ceva.fr/fre/S-INFORMER/Infor ... ociete-BFS
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Re: Microalgae: BFP Plankton Fuel Plant in Alicante




by Christophe » 11/07/17, 00:51

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