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Discussion Starter #1
I'm not used to getting soy WVO with animal fats but I have 100 gallon of it that I wish to separate out the fat. The problem is that the fats clog my on-board veggie filter far faster than fat free oil does although both are filtered to 1 micron.

I've been filtering it at 120*F but when it cools the fats re-solidify. I've tried to filter cold, but even at 1 micron it clogs up my screen way too fast.

What's the best way to remove fat from oil on a large scale? I'm thinking of filling a 275 gallon IBC with the 100 gallons and 175 gallons of other good oil and hoping the fats will settle. I'm thinking full sun to warm the contents and draining out the fats at dawn when they should be visible at the bottom. /ubbthreads/images/graemlins/shrug.gif
 

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Sounds like you already figured it out, or you could convert it to BIODIESEL!
I suspect it is not aminal fats, just a vege oil that has a diff temp that it turns at.
Makes fine summer BIODIESEL!
What are you going to do with it once you seperate it and drain off the heavy stuff? Find someone thats making BIODIESEL! and let them convert it.
BIODIESEL!!
Rick H...
 

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The best way is to just make biodiesel out of it all and not worry about it /ubbthreads/images/graemlins/laugh.gif

Jeez,, by the time you SVO people do all the work of filtering and de-watering, you probably did more work than if you just made biodiesel..

Anyhow,
Its been my experience that tallows fall to the bottom fastest when the liquid is about 10 degrees above the cloud point of the vegetable oil.. Yes.. that means chill it.. not warm it..

When you warm the liquid, you help keep the animal fats in a liquid state along with the veg oil... but when you chill it, the animal fats are the first to precipitate out and fall to the bottom as little white string looking things..

Hope this helps...
 

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Discussion Starter #4
[ QUOTE ]

Jeez,, by the time you SVO people do all the work of filtering and de-watering, you probably did more work than if you just made biodiesel..


[/ QUOTE ]

You bioD guys are killin' me. /ubbthreads/images/graemlins/wink.gif I've taken a bioD home brew class and have GM's book but I'm resisting making mayonnaise. /ubbthreads/images/graemlins/biggrin.gif Problem is that all my oil is in 55 gal steel drums and I can't see a darn thing. Murphy, your 10* above cloud point idea sounds like a plan. So filling my IBC in full sun it is.
 

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Richard,
Stop by, I got tons of FREE 55 gallon white plastic barrels you can have!
You worry too much. The process is easy and seems to me less work and worry than SVO, but thats a whole nother argument I guess.
I know when I have made a batch if it is good or not, no guessing about it.
Rick H...
 

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Discussion Starter #6
[ QUOTE ]
Richard,
Stop by, I got tons of FREE 55 gallon white plastic barrels you can have!


[/ QUOTE ]

One problem...you're 1,657.5 miles away. /ubbthreads/images/graemlins/rolleyes.gif /ubbthreads/images/graemlins/smirk.gif
 

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I have a restaurant that uses this type of oil and I have tried it all! You either have to make bio. out of it or throw it out.I also have too much to throw it out and resist throwing it away so I guess I'm going to start making Bio.I'm am now learning how to make it and collecting the parts.
 

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[ QUOTE ]
I have a restaurant that uses this type of oil and I have tried it all! You either have to make bio. out of it or throw it out.I also have too much to throw it out and resist throwing it away so I guess I'm going to start making Bio.I'm am now learning how to make it and collecting the parts.

[/ QUOTE ]

There are conversion designed to use high fat/hydrogenated wvo and those that are not. If you have the first using it is not a problem. If you have the second give it to someone who makes biodiesel.
 

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[ QUOTE ]
[ QUOTE ]
I have a restaurant that uses this type of oil and I have tried it all! You either have to make bio. out of it or throw it out.I also have too much to throw it out and resist throwing it away so I guess I'm going to start making Bio.I'm am now learning how to make it and collecting the parts.

[/ QUOTE ]

There are conversion designed to use high fat/hydrogenated wvo and those that are not. If you have the first using it is not a problem. If you have the second give it to someone who makes biodiesel.

[/ QUOTE ] I have run hydrogenated oil for years but there are some extended use oil that have something in them that makes them useless even in the summer. I have some and it is a solid at 80 degrees! I have heated it to 180 degree and when I try to filter it ,it will coat my bag filters and not let any through, it is just a heavy slime
 

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Discussion Starter #10
The fatty oil I'm dealing with is non-hydro soy. I can see tiny crystals floating on the surface when at ambient temp, but is totally liquid at 40*F.

The oil you describe is something that I'd never collect in the first place. It sounds gross. Why would any restaurant use it (unless they're 100% ignorant)?
 

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I agree with the chilling. I use only translucent oil. I have a bunch of cubes with clear oil on top and butter looking oil on bottom. Maybe I could use one of those cheap plastic bio processors to seperate the butter from oil. Then return the butter back to the dumpster. Maybe one of these days I'll get the bio process figured out.
 

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Discussion Starter #12
You call it butter...I call it sludge. /ubbthreads/images/graemlins/wink.gif
 

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[ QUOTE ]
You call it butter...I call it sludge. /ubbthreads/images/graemlins/wink.gif

[/ QUOTE ]No matter what you call it,it will make bio.
 

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[ QUOTE ]
[ QUOTE ]
You call it butter...I call it sludge. /ubbthreads/images/graemlins/wink.gif

[/ QUOTE ]No matter what you call it,it will make bio.

[/ QUOTE ]

Perhaps... but if you live north of florida, all those tallows will just be bio-sludge when the temperature drops below 70 degF.
 

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[ QUOTE ]
[ QUOTE ]
[ QUOTE ]
You call it butter...I call it sludge. /ubbthreads/images/graemlins/wink.gif

[/ QUOTE ]No matter what you call it,it will make bio.

[/ QUOTE ]

Perhaps... but if you live north of florida, all those tallows will just be bio-sludge when the temperature drops below 70 degF.

[/ QUOTE ]Right thats why I use it in the summer ( I have 4000 gal storage )
 

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Discussion Starter #16
4000 gallons? /ubbthreads/images/graemlins/smokin.gif Forget calling it butter...What settles looks like [pancake] batter. /ubbthreads/images/graemlins/biggrin.gif
 

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yum
 

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The fatty oil I'm dealing with is non-hydro soy. I can see tiny crystals floating on the surface when at ambient temp, but is totally liquid at 40*F.
Did you ever figure out how to manage that stuff? I live in the northwest and snagged 65 gallons in cubies yesterday. It looks relatively clean, but it's solid. The box states that it's nothing but soybean oil. It also melts easily between your fingers. I've got a heated second fuel system, but my wvo processor is outside (cold upflow.) Soybean oil has one of the lowest cetane ratings among the common fryer oils, so I want to use it. I haven't experimented with it yet to see how it works. I thought I might just check around for ideas first. I'm not interested in producing bio with it either.
 

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I understand your hesitation on making biodiesel. Here's my advise. Make a couple small batches like a liter or so to get yourself familiar with the process then move up.

People ask me all the time if biodiesel is hard to make. I reply to ask them if they can bake a cake by using the instructions on the cake mix box. Now if they're completely illiterate, most will say yes. I tell them to be very careful with the chemicals involved but have fun with the learning experience.

I've made biodiesel from oil that smelled like a skunk's pooter, but it turned out just fine.
 

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BTW, you want to get oil with the highest cetane rating or the engine will sound like a washer machine full of rocks.
 
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