
Member • Jul 22, 2013
Relation between pH and MOL (Milk Of Lime)
for example, if i want to increase 1 pH value, what should be the flow rate of MOL?
Member • Jul 22, 2013
Member • Jul 22, 2013
Member • Jul 22, 2013
In the industry I have visited, the pH control is manual. I have decided to do automation. can you please suggest me some ways to carry out this project.A.V.RamaniThere are a large number of variants of sugar refining process. SO2 can be added before, together with or post MOL addition. Control can be manual or automatic. If the pH is too acidic inversion of sugar takes place.
MoL has a pH about 12.3. Obviously the quantity of MoL will depend upon the SO2 in the liquor.
This document gives some general info on the various processes in use:
<a href="https://www.sugartech.co.za/sulphitation/" target="_blank" rel="nofollow noopener noreferrer">Sugar Engineers</a>
Member • Jul 23, 2013
Member • Jul 23, 2013
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Member • Jul 26, 2013
Member • Jul 27, 2013
Member • Jul 27, 2013
Sir, Myself and Madhu27 are batchmates doing the same project. we are talking about the regular sugar industry. In the industry we visited, they dont have any seperate mixing tank for juice and MOL. It gets mixed in the Line. After mixing the pH should be around 8.9 or 9.This pH can be maintained by controlling the flow of MOL. And this mixture when mixed with SO2, the pH should be maintained around 7.3 or 7.4. For maintaining this pH value, we should adjust the flow of SO2. The primary controlled variable is MOL. Only if the final pH is not 7.3 or 7.4 (after Sulphitation) we should control the flow of SO2, since SO2 is costly than MOL.A.V.RamaniCan you put up a sketch or a line diagram of the process? Are you having just a pipe through which the cane juice flows without any tank in line? Are you talking about regular sugar manufacturing or some other industry?
Member • Jul 27, 2013
Member • Jul 27, 2013
A.V.RamaniWhere does the mix go after all this is done? What is the next process?
Where are you people located? What exactly is the project that you are working on? If it is a course related project that is already configured, it is better that you concentrate on the execution of the proposal rather than scouting around.
If some kind of control scheme has already been though of then let us look at how to go forward with that instead of starting from scratch.
Member • Jul 27, 2013