Making bio out of partially hydrogenated oils
#1
Making bio out of partially hydrogenated oils
So what are the issues? Anything other than reduced yeild?
What are the tips/tricks to getting good bio with paritally hydrogenated oil?
More heat? More NaOH/KOH? More Methanol? Longer processing?
I have a chance to pick up about 50 gallons of free oil but 40 of it is "partially hydrogenated" according to the guy wanting to give it away.
So is it worth the effort to go get it, or not? Can good bio be made from this kind of stock without going to some kind of extreme measures?
What are the tips/tricks to getting good bio with paritally hydrogenated oil?
More heat? More NaOH/KOH? More Methanol? Longer processing?
I have a chance to pick up about 50 gallons of free oil but 40 of it is "partially hydrogenated" according to the guy wanting to give it away.
So is it worth the effort to go get it, or not? Can good bio be made from this kind of stock without going to some kind of extreme measures?
#2
#3
Thanks Fab. Thats pretty close to the answer I got on one of the other boards I'm on. A guy there responded and said it raises the cloud point of the bio a little, but other than that, and the oil having to be heated to liquify before going into the processor, there's really no difference.
#7
But my memory (or understaanding) may be totally wrong. Care to refresh my memory, oh chemist buddy 'o mine?
Trending Topics
#8
In saturated hydrocarbons each carbon atom is bonded to 4 other atoms, usually 2 other carbons and 2 hydrogen unless they're carbons at the end of the chain then they are bonded to 1 carbon and 3 hydrogens. Each bond is made up of a pair of electrons which the two atoms share.
In an unsaturated hydrocarbon at least on pair of carbon atoms share a double bond (an extra pair of electrons involved). In that case the carbons involved will each give up one of the usual hydrogens. Double bonds are more unstable than single single bonds and are the sites at which oxidation and polymerization occur, thus they are undesirable to a certain extent; however, they also have some beneficial qualities in that they tend to lower the cloud point of BD. As you can see it is a mixed bag of benefits some good some bad.
Hydrogenation is the process by which unsaturated hydrocarbon molecules may be converted to saturated, or fully hydrogenated, molecules.
All in all there is no reason to not use saturated or hydrogenated VO to make BD. It will be less likely to deteriorate thus will have a longer storage life but it will have a higher cloud point and will need precautions in cold weather.
In an unsaturated hydrocarbon at least on pair of carbon atoms share a double bond (an extra pair of electrons involved). In that case the carbons involved will each give up one of the usual hydrogens. Double bonds are more unstable than single single bonds and are the sites at which oxidation and polymerization occur, thus they are undesirable to a certain extent; however, they also have some beneficial qualities in that they tend to lower the cloud point of BD. As you can see it is a mixed bag of benefits some good some bad.
Hydrogenation is the process by which unsaturated hydrocarbon molecules may be converted to saturated, or fully hydrogenated, molecules.
All in all there is no reason to not use saturated or hydrogenated VO to make BD. It will be less likely to deteriorate thus will have a longer storage life but it will have a higher cloud point and will need precautions in cold weather.
#9
In saturated hydrocarbons each carbon atom is bonded to 4 other atoms, usually 2 other carbons and 2 hydrogen unless they're carbons at the end of the chain then they are bonded to 1 carbon and 3 hydrogens. Each bond is made up of a pair of electrons which the two atoms share.
In an unsaturated hydrocarbon at least on pair of carbon atoms share a double bond (an extra pair of electrons involved). In that case the carbons involved will each give up one of the usual hydrogens. Double bonds are more unstable than single single bonds and are the sites at which oxidation and polymerization occur, thus they are undesirable to a certain extent; however, they also have some beneficial qualities in that they tend to lower the cloud point of BD. As you can see it is a mixed bag of benefits some good some bad.
Hydrogenation is the process by which unsaturated hydrocarbon molecules may be converted to saturated, or fully hydrogenated, molecules.
All in all there is no reason to not use saturated or hydrogenated VO to make BD. It will be less likely to deteriorate thus will have a longer storage life but it will have a higher cloud point and will need precautions in cold weather.
In an unsaturated hydrocarbon at least on pair of carbon atoms share a double bond (an extra pair of electrons involved). In that case the carbons involved will each give up one of the usual hydrogens. Double bonds are more unstable than single single bonds and are the sites at which oxidation and polymerization occur, thus they are undesirable to a certain extent; however, they also have some beneficial qualities in that they tend to lower the cloud point of BD. As you can see it is a mixed bag of benefits some good some bad.
Hydrogenation is the process by which unsaturated hydrocarbon molecules may be converted to saturated, or fully hydrogenated, molecules.
All in all there is no reason to not use saturated or hydrogenated VO to make BD. It will be less likely to deteriorate thus will have a longer storage life but it will have a higher cloud point and will need precautions in cold weather.
Thanks for filling in some of the finer points and details Phy. I can always count on you to help bring chemistry back down to a level that us non-chemists can get our heads around.