The best and most practically useful video I've seen on this subject, so far. Of particular interest to me, here, is How anhydrous does the ethanol need to be for this to work properly, please? Also, how necessary is the preheating for this reaction. I would like to try on a much larger scale, but that will probably mean using plastic containers (PP, HDPE etc.) Which might not take the heat to well, especially, in the presence of an oil...
The problem is the oil. it does have water in it. From my tries, heating it for an hour is not enough to get it dry. I read copper sulfate can be used for that goal... I have not given that a test.
Yes, Methanol is often used to make biodiesel instead of ethanol. However, methanol is very dangerous so make sure to take the necessary safety precautions before using it (we have a video we hope will be helpful on methanol safety here: ua-cam.com/video/7ORIPTd11A8/v-deo.html ).
@@marcelolima-adv We do first 80% of the the alcohol catalyst mixture, then we drain off the glycerin before adding the remaining 20%. It's a tactic we use to increase our yield.
It depends on what you define is best. Ethanol and Methanol both can make high quality diesel, however, the performance of each fuel slightly differs based on the type of oil you use. Cost is normally the largest concern with methanol being the cheaper of the two. Environmentally ethanol can be better as it can be made from a near carbon neutral source where methanol is typically made from petroleum. Ethanol is often used when the production facility can ferment their own alcohol and mix it with their waste cooking oils, such as potatoes for french fries.
Anhydrous alcohol is preferred, but high alcohol concentration should work. Water can aid in soap formation and excess water must be removed in later steps before using the fuel.
Hey, I can’t find how to send a pm. I bought a tincture the desired compound is set in mct oil. Mct oils density is 0.95 g/ cm3. Isopropyl Alcohols is .78 g/ml and water 1.0 g/mI. The compound is alcohol and fat soluble but not water soluble. I was trying to eliminate the oil by dissolving it in 99% alcohol. I’m guessing I would have to heat it up or maybe simply mix.The compound I would like to keep has boiling point is 320 f. Could I simply heat it with the proper temperature and ratio alcohol or just alcohol then evaporate the alcohol leaving me with just the compound or a less oily compound? Or can I simply heat it up in a mixture of alcohol extract it in the alcohol and then freeze the mct oil overnight (obviously alcohol won’t freeze) but when the fat freezes scrape it off? Would the extracted compound be left almost fully in the alcohol not oil? Also would you know proper ratios? I have looked all over the internet so my last chance is this comment lol. You seem to know what your doing.
Hello sir.... I have a doubt..after adding sodium methoxide solution Whether we have to haet and stirr Or stirring alone without continuous heat.... Please do reply sir..... I tried this but I haven't get any separation.....what I did is I stirred with continous heating with heating mantle at 60 degree temprature after adding sodium methoxide solution.
Hello and thanks for the question! This video has an updated version: ua-cam.com/video/sSLulgJ-E00/v-deo.html because one of the calculations has a mistake. Are you referring to the (correct here) calculation (for ethanol) of (100 g oil/877 g/mol) = (X g ethanol/ 6*(46 g/mol))? The 877g/mol number is used for canola oil and is found from the periodic table. We have a calculator on our website biodieseleducation.org/Production/MolecularweightCalculator.html that allows you to calculate average molecular weight of other oils as well. The 48 g/mol number is used because we're calculating for ethanol. For methanol, you would use 32.04 g/mol. The 3:1 just means a 3 to 1 molar ratio of alcohol to oil to satisfy a complete reaction (it takes 3 molecules of alcohol for every molecule of triglyceride). Often a 6:1 ratio is used by producers to drive the reaction to the products side. Does that answer your question?
The equation in 3:25 looks incorrect. The unit does not match. FYI : The authors posted a new video with the new equation in ua-cam.com/video/sSLulgJ-E00/v-deo.html
While we aren't experts in that topic specifically, biodiesel has been shown to be effectively produced by enzymatic catalyst and also, numerous researches have been performed to obtain highly active lipases and to optimize process conditions for biodiesel production. pdfs.semanticscholar.org/cb47/05a8b6ce3391f78a15a9e8c79e1e2816f53e.pdf
It's also worth noting that the Chinese have been working on a solid catalyst that is way easier to recovery. Not sure if you can buy it off the shelf, though.
Yes! We have a calculator on our website that lets you calculate amounts based on various catalysts: biodieseleducation.org/Production/AcidValueandCatalystCalculator.html
While we typically don't use CaO as a catalyst, it may be possible that it can be reused. (When initially used, it should be fresh because when exposed to CO2 it will degrade and become ineffective.) You could try washing it and drying it down, and trying it a second time.
haii can knw is it correct my calculation.. ( 100g oil / 877 g mol) = [ X g of Ethanol / 6*(46g mol)] ,, i did calculate , the answer is 31.47 g.. am i right?
The best and most practically useful video I've seen on this subject, so far. Of particular interest to me, here, is How anhydrous does the ethanol need to be for this to work properly, please? Also, how necessary is the preheating for this reaction. I would like to try on a much larger scale, but that will probably mean using plastic containers (PP, HDPE etc.) Which might not take the heat to well, especially, in the presence of an oil...
The problem is the oil. it does have water in it. From my tries, heating it for an hour is not enough to get it dry.
I read copper sulfate can be used for that goal... I have not given that a test.
Make sure to view our update to this video here: ua-cam.com/video/sSLulgJ-E00/v-deo.html
first of all , thanks a lot for this explanation , then , i need to know the steps of epoxidation of vegetable oil and the weights for this process ?
Sir, we do the project work in silk cotton oil. we need KOH, Ethanol level to add and also the Boiling point of Silk cotton oil..Please reply us.
Add 1% KOH by wt and 30% ethanol by vol and run the reaction 65 C.
Can I use methyl alcohol instead of ethanlo?
Yes, Methanol is often used to make biodiesel instead of ethanol. However, methanol is very dangerous so make sure to take the necessary safety precautions before using it (we have a video we hope will be helpful on methanol safety here: ua-cam.com/video/7ORIPTd11A8/v-deo.html ).
is it possible to do this without the stir bar
Thanks, very instructive video.
Calculations are wrong
recommend to calculate by yourself
Hi, after removing the glycerine you add the rest of the alcohol/catalize
That's correct!
@@BiodieselEducation Sir, why do I need to add the rest of methoxide? Or rather, why you did not add the alcohol completely?
@@marcelolima-adv We do first 80% of the the alcohol catalyst mixture, then we drain off the glycerin before adding the remaining 20%. It's a tactic we use to increase our yield.
@@BiodieselEducation then it's needed to reheat? For How long?
Which one is the best Ethanol or Methanol?
It depends on what you define is best. Ethanol and Methanol both can make high quality diesel, however, the performance of each fuel slightly differs based on the type of oil you use. Cost is normally the largest concern with methanol being the cheaper of the two. Environmentally ethanol can be better as it can be made from a near carbon neutral source where methanol is typically made from petroleum. Ethanol is often used when the production facility can ferment their own alcohol and mix it with their waste cooking oils, such as potatoes for french fries.
Sir, we have in Brazil ethanol with 5% of water (95% pure). How can I do for me to use this kind of ethanol?
Anhydrous alcohol is preferred, but high alcohol concentration should work. Water can aid in soap formation and excess water must be removed in later steps before using the fuel.
@@BiodieselEducation Thank you so much for your prompt reply. And how can I remove the water from the ethanol? Thank you again.
@@marcelolima-adv Distillation can only remove most of the water, but molecular sieves can remove almost all of it.
@@BiodieselEducation Thank you so much.
How long can I keep the mixture of ethanol and hydroxyde?
do not store it. make and use.
at 3.27, Mole calculation is wrong
Thanks so much for pointing this out! We are correcting the issue.
The video was a nice help for someone who is not familiar with chemical engineering and have taken research work in the same field.
Also be sure to check out our lab on calculating acid number of vegetable oils by titration: ua-cam.com/video/b1PbQ7jjVVM/v-deo.html
A have a guastion:from 10 kg. oil palm, i need 50 gr KOH end 2 kg. etanol? Please help my calcul!
Super, super lesson! I like!
Hey, I can’t find how to send a pm. I bought a tincture the desired compound is set in mct oil. Mct oils density is 0.95 g/ cm3. Isopropyl Alcohols is .78 g/ml and water 1.0 g/mI. The compound is alcohol and fat soluble but not water soluble. I was trying to eliminate the oil by dissolving it in 99% alcohol. I’m guessing I would have to heat it up or maybe simply mix.The compound I would like to keep has boiling point is 320 f. Could I simply heat it with the proper temperature and ratio alcohol or just alcohol then evaporate the alcohol leaving me with just the compound or a less oily compound? Or can I simply heat it up in a mixture of alcohol extract it in the alcohol and then freeze the mct oil overnight (obviously alcohol won’t freeze) but when the fat freezes scrape it off? Would the extracted compound be left almost fully in the alcohol not oil? Also would you know proper ratios? I have looked all over the internet so my last chance is this comment lol. You seem to know what your doing.
Hello sir.... I have a doubt..after adding sodium methoxide solution Whether we have to haet and stirr Or stirring alone without continuous heat.... Please do reply sir..... I tried this but I haven't get any separation.....what I did is I stirred with continous heating with heating mantle at 60 degree temprature after adding sodium methoxide solution.
How to calculate mole?
What is the mean of 3:1?It is the amount of methanol and alcohol use for biodiesel production?
Hello and thanks for the question! This video has an updated version: ua-cam.com/video/sSLulgJ-E00/v-deo.html because one of the calculations has a mistake. Are you referring to the (correct here) calculation (for ethanol) of (100 g oil/877 g/mol) = (X g ethanol/ 6*(46 g/mol))? The 877g/mol number is used for canola oil and is found from the periodic table. We have a calculator on our website biodieseleducation.org/Production/MolecularweightCalculator.html that allows you to calculate average molecular weight of other oils as well. The 48 g/mol number is used because we're calculating for ethanol. For methanol, you would use 32.04 g/mol.
The 3:1 just means a 3 to 1 molar ratio of alcohol to oil to satisfy a complete reaction (it takes 3 molecules of alcohol for every molecule of triglyceride). Often a 6:1 ratio is used by producers to drive the reaction to the products side.
Does that answer your question?
U can show all the calculation in manual manner that will be more better to recognise crtly
Thanks for the feedback! We made a video that walks through the alcohol amount calculation more clearly here: ua-cam.com/video/tUIuP4H8Rek/v-deo.html
The equation in 3:25 looks incorrect. The unit does not match.
FYI : The authors posted a new video with the new equation in ua-cam.com/video/sSLulgJ-E00/v-deo.html
Please where I can buy palm trimethylolpropane (palm Tmp ester)
Add the hydroxide to the (m)ethanol and not the other way around (shown in the video but bad practice).
why you rising the temperature until 240c when you stirring the ethanol and koh he will evaporate
What is weight of ethanol you added
The calculation for the ethanol can be found here: biodieseleducation.org/Education/Documents/HighSchoolLab05.pdf!
Hello Sir, Im Vivek From NIT A India, i need jatropha biodiesel, is it available in your range
hi, what is the formula on how to know the exact amount of catalyst needed for the solution?
Can this process be used when the catalyst is an enzyme particularly lipase?
While we aren't experts in that topic specifically, biodiesel has been shown to be effectively produced by enzymatic catalyst and also, numerous researches have been performed to obtain highly active lipases and to optimize process conditions for biodiesel production. pdfs.semanticscholar.org/cb47/05a8b6ce3391f78a15a9e8c79e1e2816f53e.pdf
It's also worth noting that the Chinese have been working on a solid catalyst that is way easier to recovery. Not sure if you can buy it off the shelf, though.
very nice explaination..
Sir Can we do this experiment in sunlight as it's flash point is nearly 52 it should not be of any problem
how is the second reaction done?
van helsing brought me here
Con I use NaOH instead of KOH?
Yes! We have a calculator on our website that lets you calculate amounts based on various catalysts: biodieseleducation.org/Production/AcidValueandCatalystCalculator.html
yes
Thank you for posting. The more information on this I can get the better
Anyone here knows molecular weight for mango seed kernel oil ?
Subscribe pmn ideas
If im using CaO dor my catalyst. Does the catalyst and the glycerol can be reuse?
While we typically don't use CaO as a catalyst, it may be possible that it can be reused. (When initially used, it should be fresh because when exposed to CO2 it will degrade and become ineffective.) You could try washing it and drying it down, and trying it a second time.
sir ye heating k liy h iska name bta skte h ap?
haii can knw is it correct my calculation.. ( 100g oil / 877 g mol) = [ X g of Ethanol / 6*(46g mol)] ,, i did calculate , the answer is 31.47 g.. am i right?
Our calculation is a bit off in this video, but we fixed it in the update here: ua-cam.com/video/sSLulgJ-E00/v-deo.html
...is the answer 31.47 g is correct or not!!!!
u legend homie thank u
Thank you!