Making biodiesel for 6.7 powerstroke
there is no station close enough to me to make it worth getting B20 so I wanted to plan on making it myself. I didn’t want to push it or anything on how much %, b20 is fine with me and I know it’s rated for that in my 6.7. I just wanted to know if someone could explain the washing of it a bit more? Specifically wet washing as I fill one every other week 30~ gal so the time of settling isn’t an issue but I just wanted to make sure you add water at about a 1-1 ratio and mix it and kettle it settle? Is that really it? And it will go through atleast 2 fuel water seperated filters before entering my tank to be safe |
if the water emulsifies...the water separator will not trap it...it will appear as a Vaseline looking substance on you filters..eventually clogging them.
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Originally Posted by rjrandy96
(Post 18252662)
Is that really it? Settling alone will never be enough to dry biodiesel. It can look crystal clear, but can contain dissolved water. In fact, since biodiesel is hygroscopic, properly dried biodiesel can absorb enough moisture from the atmosphere to potentially cause problems down the line. You need to be below 500ppm moisture. I have been water washing for over 10 years and use a combination of bubbling and modified pump washing. It works for me, my fuel is great, and I currently have no desire to move to any form of dry washing. I would estimate with each 40 gallon batch, I use around 30-40 gallons of water over the course of the wash process. Then I test for soap content before proceeding to the drying process. I use a heated spray dry process and utilize the WHW method of testing moisture content to below 500ppm. Here's a couple links you might want to look over before proceeding: http://www.make-biodiesel.org/Water-...biodiesel.html http://www.make-biodiesel.org/Qualit...er-in-wvo.html |
just throwing this out there as a curiosity statement.
once the conversion from meth oxide + plant oil to biodiesel occurs, you are looking at let say 1 gallon of b100 with 30% of the methonal you used remaining in the biodiesl with the other 70% trapped in the sludge. 7oz of meth oxide in the biodiesel and 14oz in the sudge. so take the 1 gallon of b100 and mix with 4 gallons of regular #2 diesel and you now have 5 gallons of b20. each gallon (128 oz) would have 1,4 oz of metho oxide . this is less than 1% meth oxide would this not just evaporate? or couldn't you just let it sit in a dry environment (open 5 gallon container / dehumidifier garage)) over night so that the 1% evaporates. do we think that this 1% would bond with water absorbed hydrostatically and cuase gelling and clogging of filters? I've never had this happen and I have been running home brew B20 for years and never found any gelling in my filters. Me personally thinks that at b20, what ever remaining methonal will just evaporate and theres no need for washing and such. please educate me. thanks |
Originally Posted by speakerfritz
(Post 18890629)
would this not just evaporate? or couldn't you just let it sit in a dry environment (open 5 gallon container / dehumidifier garage)) over night so that the 1% evaporates. do we think that this 1% would bond with water absorbed hydrostatically and cuase gelling and clogging of filters? I've never had this happen and I have been running home brew B20 for years and never found any gelling in my filters. Me personally thinks that at b20, what ever remaining methonal will just evaporate and theres no need for washing and such. please educate me. thanks Evaporating or distilling the remaining methanol however, will allow the soaps to drop out more easily, but you still have to separate the soap fallout. Most of those who dry wash use the evaporation/distilling method of removing methanol before running the biodiesel through the wood chips, magnesol, or other media, to remove the soaps. Water washing, which I do, removes the remaining methanol fairly quickly. It works for me, and I have no inclination to invest in more supplies and equipment to dry wash. I've gotten lazy, and don't test for soaps as often as I used to. Mainly because my wvo source is consistently the same all the time. So is my process. Always titrates .25 KOH. Anyhow, moisture, methanol, and soaps all have to be virtually non-existent in properly finished biodiesel. |
Just wondering where you guys get your methanol from? I can't find any for less than $9-10 a gallon.
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Originally Posted by Mathis1231
(Post 19014887)
Just wondering where you guys get your methanol from? I can't find any for less than $9-10 a gallon.
sounds about right. a gallon is good for about 6 gallons of biodiesel and if you want to put in the effort, you can reclaim a lot of it for the next batch. |
I buy mine here: https://www.tarrllc.com/ I purchase 55 gallon drums. Out the door I pay $238.00 It comes out to about $3.50 per gallon, net cost.
But with fees, taxes, and surcharges it comes out to about $4.30 per gallon. |
Originally Posted by binuya
(Post 19015074)
I buy mine here: https://www.tarrllc.com/ I purchase 55 gallon drums. Out the door I pay $238.00 It comes out to about $3.50 per gallon, net cost.
But with fees, taxes, and surcharges it comes out to about $4.30 per gallon. do you ship it from them or are you local? If you do freight what's the cost if you don't mind sharing? |
Originally Posted by speakerfritz
(Post 19014903)
sounds about right.
a gallon is good for about 6 gallons of biodiesel and if you want to put in the effort, you can reclaim a lot of it for the next batch. I've read that you can get about 20-30% back, is that about right or do you see more or less? |
Originally Posted by Mathis1231
(Post 19015115)
that's not bad at all! Thanks for the lead.
do you ship it from them or are you local? If you do freight what's the cost if you don't mind sharing? There's gotta be a place in your area that carries it. I did a search and there's a place in Louisville called Univar. Might be worth a call. |
Originally Posted by binuya
(Post 19015148)
I'm only about a half hour away. I pull up and they load it right into the bed.
There's gotta be a place in your area that carries it. I did a search and there's a place in Louisville called Univar. Might be worth a call. |
Originally Posted by Mathis1231
(Post 19015183)
That's perfect I go to Louisville once a month. How did you find them?
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