Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: What types of oil are OK

  1. #1
    Join Date
    May 2008
    Location
    Rockhampton
    Posts
    5

    What types of oil are OK

    i am just getting started with making bio and have come across a potential problem. i have been collecting used cooking oil and it struck me that its animal fat and not veg oil. can bio be made using animal fat and if it can is it the same process as using veg oil.

    While im at it is there anything i should be looking out for as far as used oil goes?

    thanks Ben

  2. #2
    Join Date
    Oct 2005
    Location
    Sunshine Coast, QLD
    Posts
    708

    Re: What types of oil are OK

    Yes you can make bio from tallow (animal fat). I forgot to check where you live but you may want to use bio made from tallow only i summer. It will gell below 10 - 15 degrees.

  3. #3
    Join Date
    Sep 2005
    Location
    WA
    Posts
    4,372

    Re: What types of oil are OK

    D1,
    Ditto, but you may actually have a vegetable oil which has been modified to raise its melting point and make it more stable in the fryer, rathwer than an animal fat. "Hydrogenation" adds a hydtrogen atom to each of the carbon chains, to saturate the oil, raising its melting point.
    It may have some liquid or low melting point oils in it also, so if you make biodiesel from it, allow it to settle over a time and check for layers of white biodiesel (solidified) and liquid biodiesel.

    Ths liquid biodiesel can be decanted from the solid or filtered thru a cleanable filter, if it is a slurry. Keep the solid biodiesel, it makes a good high energy summer fuel while the liquid biodiesel is a good winter fuel.

    Hope this helps,
    Tony

  4. #4
    Join Date
    May 2008
    Location
    Rockhampton
    Posts
    5

    Re: What types of oil are OK

    yeh the temp shouldnt be a problem here in rockhampton. my biggest problem at the moment if finding some one who uses veg oil and not tallow (its hard enough getting used tallow) and working out what hardware i need for full production.

  5. #5
    Join Date
    Jan 2006
    Location
    ลึก ประเทศอินเด&
    Posts
    2,180

    Re: What types of oil are OK

    Hello Dicko

    You should just about be able to get by with biodiesel made from 100% Tallow (Frytol/Red Band) year round In Rockhampton

  6. #6
    Join Date
    Mar 2008
    Location
    Townsville
    Posts
    64

    Re: What types of oil are OK

    I live in Townsville 720 kms north of Rockhampton and the fellows here making biodiesel out of tallow or solid vegetable oil have problems in the cooler months.

  7. #7
    Join Date
    May 2008
    Location
    Rockhampton
    Posts
    5

    Re: What types of oil are OK

    sometimes in winter it doesent go above 15 deg. then there is the wind chill as it gets windy here. some mornings we get a fairly decent frost out at work.

  8. #8
    Join Date
    May 2008
    Location
    Toowoomba
    Posts
    36

    Re: What types of oil are OK

    D1cko, hmm..........I think you will have gel problems I do in Toowoomba at 0-15deg so I think you will as well. Mind you give it ago see what happens on a small litre batch, Leave them in the sun and overnight.And llok at the results.
    Annatex

  9. #9
    Join Date
    Dec 2007
    Location
    Wellard
    Posts
    78

    Re: What types of oil are OK

    Hi,

    I spoke to a restaurant and I was given the ok to take their oil. The chef said Palm Oil and I went away excited. Then I remembered seeing small solid blocks of edible vegetable oil in the kitchen. I started to think that this might be no good ie a fat. Tony, you mention in this post that it might probably be a vegetable oil that has been blended to give a higher melting point. Any idea how much vegetable oil to fat ratio might be in these blocks? Can I get some decent winter bio out of them do you think?

    In a nutshell i guess is it worth me pursuing this source. I can get a really good supply of the palm oil but are not sure there will be good biodiesel at the end. I also have an animal fat supply if I wanted, but is this palm oil solid block the better one at this stage

    cheers farmy

  10. #10
    Join Date
    Sep 2005
    Location
    WA
    Posts
    4,372

    Re: What types of oil are OK

    Quote Originally Posted by Farm Boy View Post
    Hi,

    I spoke to a restaurant and I was given the ok to take their oil. The chef said Palm Oil and I went away excited. Then I remembered seeing small solid blocks of edible vegetable oil in the kitchen. I started to think that this might be no good ie a fat. Tony, you mention in this post that it might probably be a vegetable oil that has been blended to give a higher melting point. Any idea how much vegetable oil to fat ratio might be in these blocks? Can I get some decent winter bio out of them do you think?

    In a nutshell i guess is it worth me pursuing this source. I can get a really good supply of the palm oil but are not sure there will be good biodiesel at the end. I also have an animal fat supply if I wanted, but is this palm oil solid block the better one at this stage

    cheers farmy
    Farmy,
    While you can make biodiesel from the palm oil, it would be best to use it for summer biodiesel.
    The palm oil is "Hydrogenated" to make it a saturated oil (fat). This is a similar process to making margarine from canola and other vegetable oils.

    The oil is still a vegetable oil, but it has a high melting point.

    If you can find some liquid vegetable oils, you can still use the palm oil as 25% of your biodiesel feedstock during winter, and still have usable biodiesel.

    Regards,
    Tony

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •