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People what do you think about Algae hydrogen fuel?

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30 Answers

  1. manohar 1 year ago #

    But what is it Rizwan. Energy from Hydrogen has been a dream for long. I dont think algae is going the hydrogen way. I see algae oil happening sooner than later.

  2. rizwan 1 year ago #

    sir science is the name of what and how so i think sooner or later it will b not a dream .

  3. rizwan 1 year ago #

    m going to review some literature about hydrogen production potency of algae. n i have some ideas about this .

  4. shankar 1 year ago #

    Good Rizwan. I like the enthusiasm. Do u want me to do some surfing inthis regard.
    I can may b check in oilgae.com and oilgae.com/club regarding hydrogen productin potency of algae.
    I have been a member there for a while. I may missed any post on hydrogen production potential of algae. Keep us informed of your progress. looking forward to hearin from u.

  5. rizwan 1 year ago #

    thanks as i have did some work upon algae strains when algae degrades in lack of sunlight and co2 i think it produces h2s gas.

  6. amandaleah 1 year ago #

    Hydrogen production from algae like Shankar pointed out is much less researched than production of biodiesel and ethanol. Among currently known processes, biomass gasification technology is considered to be the most appropriate for large-scale, centralized hydrogen production.

    The potential of algae for hydrogen production was realized as early in 1940's or even earlier.
    There has been some work on going on many research univerisities. For example, researchers at the University of California at Berkeley have engineered Chlamydomonas. reinhardti which could produce vast amounts of hydrogen through photosynthesis. Similarly @ NREL there are a whole bunch of researchers engineering C.reinhardtii for hydrogen production.

    Rizwan- Here are some articles that would help you for algae hydrogen research

    Lisa Zyga. (2007) Algae could generate hydrogen for fuel cells. PhysOrg.com. Retrieved from:
    http://www.physorg.com/news114172068.html

    This article from FAO - http://www.fao.org/docrep/w7241e/w7241e0g.htm, though a bit outdated will help you understand the research efforts that has been pursued so far for algae hydrogen production.

    Maria Ghirardi. (2004). DIY Algae/Hydrogen Bioreactor. Future farmers project site. Retrieved from: http://www.futurefarmers.com/survey/algae.php

    Dawn Levy. (2005). Researchers envision a hydrogen economy, fueled by wind and new technology.Retrieved from: http://news-service.stanford.edu/news/2005/july13/hydrogen-071305.html

    Do keep us posted! Good luck!

    1 person added this comment to their reference

  7. rizwan 1 year ago #

    thanks amandaleah for participating.

  8. harita 1 year ago #

    Rizwan ! I am interested too. Thanks Amanda for the info. Keep us posted on progress and references.

  9. shahidiqbal 1 year ago #

    its excellent and best source of hydrogen fuel i think when we use to stop oxygen supply to the algae they produce the hydrogen di suphide am i right

  10. rizwan 1 year ago #

    g

  11. wiley 1 year ago #

    The quantities of hydrogen produced by algae are nowhere near enough to scale up the process to the level of commercial profitably.
    However, restriciting sulfur in the diet of algae would result in a sulfur switch which is known to increase hydrogen production by a factor of 100,000. But still there is an uncertainty over commercial profitability.

    Researchers have developed a mutant strain of C. reinhardtii which has truncated chlorophyll antennae within the chloroplasts which serves to improve the organism's hydrogen production efficiency

  12. narsi 11 months ago #

    I think it will take a very long time before the world uses algae to produce hydrogen

  13. bokkyt 7 months ago #

    Hi, I'm an engineering PhD student at Imperial College London working on biophotolytic H2 production.
    Green algae can produce H2 under anaerobic conditions, which can be imposed by sulphur deprivation.
    The main affordability challenges are the photobioreactor costs (obviously need an enclosed system rather than an open pond), the nutrient costs (C, N, S & P) and the production costs associated with low photochemical efficiencies.
    The main scalability challenges are the large surface areas required (again, low efficiency), contamination issues and the short process lifetime (typically a week, but there are ways to extend it).
    So there is definitely potential for sustainable hydrogen production from algae but there are still many barriers that need to be overcome through basic research.

    1 person added this comment to their reference

  14. rmenian 8 months ago #

    I don't see why a discussion from 6 month ago is on the table again. but for the question:
    the hydrogen solution has three main issues:
    1. production - there are many cheap and reliable processes, algae has no advantage.
    2. storage - there are very few solution to this problem (where safety is the most important player)
    3. usage - again most of the problem is in safety issues and the cost
    I don't see that algae a player in any of these games
    most of all the big market of energy has its own special constrains and can not be treated as any other market.

  15. chakrigurnath 8 months ago #

    Rmenian, Could You please add some insight into Your text.. I believe it would certainly help Rizwan and others in defining their plan of action..

  16. rmenian 8 months ago #

    Hi
    the global energy market, as well as states energy market, differs from other markets in many aspects. it is not easy to explain in few words. think about infrastructure, backup etc'. the hydrogen solution suffers from different barriers when trying to penetrate into the energy market, see me former list. it is clear that algae does not give a solution to any of them (production, storage, safely usage).
    in general when you try to point at a solution it is very important to take the market point of view not the academic or the technology. there are many 'expert' even in this site that know something form everything, they never come to see the complete picture, that is why the discussions are fruitless.
    algae is to be considered as a biological system and see what advantages it has (mainly if it can help with the co2) as an organic system there are much more efficient and economical systems to contribute to the energy problem.

  17. algejetfuels 7 months ago #

    Methanol has more hydrogen per unit than pure hydrogen gas

    The methanol economy has been explored by many, it works and would be the best energy wise.

  18. kyzyl 7 months ago #

    @Algejetfuels, you have made a mistake. Each gas, which belongs to alkan group has (ethane, propane, butanу,etc.) has the common formula CnH2n+2. Methanol has formula CH3OH. Thus the hydrogen content in gas is greater than in methanol. Butanol - C4H9OH also contains more hydrogen.

  19. narsi 7 months ago #

    @algaejetfuels - you said "Methanol has more hydrogen per unit than pure hydrogen gas"...can you explain that, it sounds counter-intuitive. How can any other combination have more hydrogen content than pure hydrogen? What is the unit you are benchmarking this against?

  20. narsi 7 months ago #

    @rmenian - you said "production - there are many cheap and reliable processes, algae has no advantage". Reliable, I agree. How do you say that there are cheap processes for hydrogen production? I think the cheap processes to produce hydrogen do not use renewable sources, which means by definition they will not be cheap in future...the best known renewable source for hydrogen is of course water, but that, you will agree is nowhere near a cheap process

  21. rcollins 7 months ago #

    Narsi I agree with you in order to produce hydrogen from water it is very energy intensive, I have read that it takes at least two or three times as much energy to liberate hydrogen from water than the hydrogen produces, not to mention it needs a catalyst/electrolyte "sulfuric acid" in order to accomplish this. Then there is the problem with storing the hydrogen, because it is the smallest molecule it leaks out of any container you put it in (an example of this is a childs ballon leaks the helium out within a short time, keeping in mind the helium is a larger molecule than hydrogen). Plus it has to be stored at I believe at about -400 degress f. at about 10,000 psi., which takes even more energy to do this. My personal opinion is that hydrogen is not the answer.

  22. narsi 8 months ago #

    @rcollins - even after all the challenges that you have so correctly mentioned, there are two things going for hydrogen - 1. it is the cleanest fuel we can think of, 2. It has very high energy density - about 40,000 KCal/Kg against 10000 KCal /Kg for hydrocarbon fuels and about 6000 KCal/Kg for coal...

    I am not as confident as you are that hydrogen is not the answer, but perhaps it is also likely I am more hopeful than confident about hydrogen :-)

  23. kyzyl 8 months ago #

    It is not a problem how to obtain hydrogen with low energy expenditures (e.g. Studonikov's generator; Konarev's cells. Pat RU RU 2003104497, 2157427,2227817, 2232829, 2277138 accordingly). The problem is how to store hydrogen, which gives an explosive with about 15-85% air mixture.

    1 person added this comment to their reference

  24. rcollins 8 months ago #

    please provide the link for low energy hydrogen production technology.

  26. rcollins 8 months ago #

    According to the paper you sent, 1000 ltrs of hydrogen requires 4 kwh of energy to create from water. according to hydrogen energy density it produces 2.9 kwh per 1000 ltrs. This is not taking into consideration the energy costs of storing the hydrogen.

  27. kyzyl 8 months ago #

    @Rcollins, Take into attention, please, these are not my patents. It is illustration to low energy expenses on hydrogen producing, and if you have read my answer, I had stressed there about necessity of the new methods of hydrogen storage. But if you want to receive everything in a moment, nothing could be done. I convinced, you know this way very well - step by step.

  28. kyzyl 8 months ago #

    @Rcollins, I like yours categorically judgements, but, it is obvious by virtue of discrepancy of translation, you have confused comparative sizes in 4kWh of conventional method and experimental 1.23kWh in manufacture 1cbm of hydrogen claimed in Patent # 2232829. The same in Patent # 2277138 is. Patent # 2227817 is claimed 7.797 times reducing energy consumption in comparison with conventional method.

  29. wyeworldenergy 8 months ago #

    I love the idea of it! I see wind turbines/solar. algae greenhouses, human and animals waste combined to power the future and have a way to store endless energy that is totally renewable.

  30. donmichael 6 months ago #

    I am aware that hydrogen production from algae as a byproduct of oil production is possible, but how much and how to do this is the question. I would like to know if it is possible to harvest enough hydrogen to power enough fuel cells to operate a fully automated end to end algae fuel system of relative size. If I can use the hydrogen to power a small scale system then I think that would adress the issue of storage because the hydrogen would then be used continuously on sight. This would also be a way to make it economic. I am not looking for large scale production of any product from algae. Does anyone know about OriginOil's hydrogen harvesting methods? I am making a self sufficient system that does not require any seperate energy source.



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