Can the Same Formula for Activated Carbon Be Used for HCL Limelayer Filtration?

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Billyjoel
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Dear Sir/Madam,

Im in my final internship for my bachelor mechanical enginering. And i have to design the filter system of a cremation proces. The fluegas is filled with toxic concentrations. Such as mercury, PCDD/PCDF, HCL, NOx

The mercury and dioxine i will filter using activated carbon , fixed bed.

And for the HCL i want to use limelayer. (also fixed bed). I did a lot of research but i can not find out how to calculate the minimum amount i need.

With activated carbon i can use the formule:

contact time (s) = Beddept (m) / Linear velocity (m/s)

Linear velocity = Flow / surface

For activated carbon to filter mercury i need at least 3 sec contact time and a linear velocity between 5 and 40 cm/s.

Now my question: can i use the same formule for the reaction between HCL and lime?
And what is the contact time? linear velocity?

Or can anybody help me where i can find the information on how to calculate with this.

Thanks,

Joel
 
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I suggest you post this in the "Chemistry" forum.