Algae oil

I've been reading about biodiesel and about using vegitable oil from algae. It would seem that per acre you can produce 250 times as much vegitable oil using algae than soy beans. I've been looking into the necessary parts for a very small scale demonstration project, including production, harvesting, drying and converting oil into diesel, but I'm having problems finding information of oil extraction. There are some very large oil extractors using screw and expeller. Even a very small one would cost several thousand dollars and since it is made for seeds I'm not sure it would work with algae. Does anyone here know about oil extraction process and how it can be scaled down and used with algae? The system I envision would only take the first pass in extracting oil, about 70%. From what I've been reading it is possible to get another 25% but requires some very nasty chemicals. Also, taking only that first press, the leftovers (refered to as "oil cake") makes for an excellent animal feed. After extracting that last 25% the leftovers are no longer suitable because of the toxic chemicals used. I'd rather have the 70% and animal feed and not have to bother with some very elaborate procedures for handling toxic chemicals. Anyone else interested in helping to put together a demo project like this? I already have resources on converting voil to biodiesel. Like I said, I'm mostly looking for information on extracting the oil. Thanks

Topic by GlobalVillageIdiot   |  last reply


TITLE- ALTERNATIVE FUELS can biodiesel and ethanol completely replace gasoline and diesel as alternative fuels?

What are the byproducts of combustion of ethanol and biodiesel? what are pros and cons of using biodiesel and ethanol as alternative fuels?

Question by sayaleechavan007   |  last reply


What is the oil content of Eurasian Milfoil?

I would like to use the oil extracted from Milfoil to produce biodiesel. I would like to know what the oil content, if any, is of milfoil. I think it is great because it is unwanted and there is a lake near me that has two giant machines whose sole job is to cut milfoil. I could collect it, dry it, press it, and refine it for next to nothing. If you have seen anything like this let me know.

Question by jack.h   |  last reply


different liquid detection sensor

I am building a biodiesel production system. at different points in the process, a tank will have different liquids in it (sometimes more than 1 type, separated out). for instance, there is a point where glycerol sinks to the bottom, while biodiesel floats on top. what i want to do is drain the glycerol from the bottom of the tank (via electronically controlled solenoid valve), then when a sensor detects a change in material (biodiesel), shuts off that valve and opens another (final product tank). for the life of me, i cannot find a sensor that will do this for less than $100. preferably, i'd like to spend less than $30. i can work with a resistive type or voltage type sensor. i just need to be able to make that distinction of material change... any ideas? THANKS!!!

Topic by samurai1200   |  last reply


Need help finding a relay

My school's building a biodiesel-hybrid car. Is there something like a normally closed relay that can be opened when the voltage goes over 165V. What should I be looking at?

Topic by agent   |  last reply


Is algae oil suitable to be used as cooking oil ? Answered

Hi everyone, Is algae oil suitable to be used as cooking oil ? does it have any strange taste or odor ? what color is the oil ? I am not after biodiesel, i need to know if the algae oil is edible and suitable for human consumption.

Question by Nick_Zouein   |  last reply


I realize this (CNET mention of Instructables) is old news and it was probably posted when it happened...

But as long as I have been going to CNET's site, this is the FIRST time I have seen this: Instructables link from CNETMaker Faire: CNET visits the tech DIY show MEET YOUR MAKER.(4/21/2006; updated 4/28/2006)Are you a compulsive tech tinkerer, a closet MacGyver? Do you wish science fairs weren't just for students? Well, now there's an event for you: the first Maker Faire, where backyard inventors show off their projects and demonstrate how you can build them, too. CNET's on the scene, checking out the fashions, the music, the gadgets, the robots, the tech running on alternative energy--from steam to biodiesel to, yes, trampoline--and, of course, the homemade rockets... Turning a VCR into a cat feeder....Dinosaur sitings !

Topic by Goodhart   |  last reply