Just a new thread to keep this subject separate so not to confuse things.
I have 'cracked' glycerol with conc sulphuric acid several times. The result is always similar. The glycerol is ex-process or has been used to pre wash oil. The process did not use any method to dry the methoxide (imisides, asm, other)
The top layer of FFA's is always about 1/3 of the total volume. This top layer was the soap contained in the glycerol, now hydrolysed by the acid.
A friend of mine who used to make bio commercially from glycerol would buy his feedstock from large biodiesel producers. He would have it delivered in tankers, 27000 litres per go. His yield of FFA's from this glycerol was variable but always around the 35% level.
During our process if our oil is dry and has no or very little titration and our methoxide is dry (ASM, Imisides or whatever) then the amount of soap produced is greatly reduced.
If we can approach a near anhydrous process the glycerol volume can be reduced by up to 1/3 Where has the extra volume gone? - it is in the bio as extra yield, not in the glycerol as soap.
This is an extract from Tillys post telling me I'm talking a load of Ba**s
Hi smithy,
In keeping with the spirit of trying to clear up the many inaccurate and misleading posts you have made, I think this is a good point to clear up this amazing bit of misinformation you posted early in this thread.
Originally Posted by smithy
Anyway just to add, when I tried this method coming up to 3 years ago using Potassium Methoxide dried by using quicklime (CaO) the volume of glycerol recovered after processing was greatly reduced. Glycerol has a variable soap content depending on oil quality, methanol quality and type of catalyst used, but is in the order of 35%. With the dry methoxide there was virtually no potassium soap, so the glycerol volume was about 2/3 of normal.
If this were true, which of course it isn't, that would mean that your byproduct layer (Glycerol) is about 92% pure glycerine.
I have actually pointed this out to you several times over the years but it seemed to make no difference and you continually post these impossible results as being the truth.
-----------------------------------------------------------
Have you somehow miscalculated the amount of glycerine in rapeseed oil Tilly?
I have 'cracked' glycerol with conc sulphuric acid several times. The result is always similar. The glycerol is ex-process or has been used to pre wash oil. The process did not use any method to dry the methoxide (imisides, asm, other)
The top layer of FFA's is always about 1/3 of the total volume. This top layer was the soap contained in the glycerol, now hydrolysed by the acid.
A friend of mine who used to make bio commercially from glycerol would buy his feedstock from large biodiesel producers. He would have it delivered in tankers, 27000 litres per go. His yield of FFA's from this glycerol was variable but always around the 35% level.
During our process if our oil is dry and has no or very little titration and our methoxide is dry (ASM, Imisides or whatever) then the amount of soap produced is greatly reduced.
If we can approach a near anhydrous process the glycerol volume can be reduced by up to 1/3 Where has the extra volume gone? - it is in the bio as extra yield, not in the glycerol as soap.
This is an extract from Tillys post telling me I'm talking a load of Ba**s
Hi smithy,
In keeping with the spirit of trying to clear up the many inaccurate and misleading posts you have made, I think this is a good point to clear up this amazing bit of misinformation you posted early in this thread.
Originally Posted by smithy
Anyway just to add, when I tried this method coming up to 3 years ago using Potassium Methoxide dried by using quicklime (CaO) the volume of glycerol recovered after processing was greatly reduced. Glycerol has a variable soap content depending on oil quality, methanol quality and type of catalyst used, but is in the order of 35%. With the dry methoxide there was virtually no potassium soap, so the glycerol volume was about 2/3 of normal.
If this were true, which of course it isn't, that would mean that your byproduct layer (Glycerol) is about 92% pure glycerine.
I have actually pointed this out to you several times over the years but it seemed to make no difference and you continually post these impossible results as being the truth.
-----------------------------------------------------------
Have you somehow miscalculated the amount of glycerine in rapeseed oil Tilly?
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