How to calculate material balance
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I’m seeking help from everyone; I hope some seniors can give me some guidance. How is the overall material balance for gasification calculated? Thank you all
What you’re saying is quite general – what are the boundaries of your material balance? When I did the material balance, I only considered the section from the inlet to the outlet of the gasifier.
I’m talking about gasifying the entire system, the material balance of process gas, the black water discharge from the gasifier and scrubber towers, as well as the amount of cooling water supplied. Including gas components, etc. I hope the seniors can help.
Your calculations aren’t very accurate. I suggest calculating it by individual materials – figure out how much goes in and how much comes out; that might work better. It’s difficult to calculate things related to coal and gas, as their compositions aren’t entirely clear, so one can only rely on the design values
What you’re saying is quite general – what are the boundaries of your material balance?
It is best to calculate them separately as distinct units for vaporization, transformation, purification, and synthesis, in order to clarify the components and flow rates of each unit.
The material balance for a general gasification process should be calculated based on elements, and the calculation areas should also be computed on a unit-by-unit basis. In calculations, there are certain errors, including errors in instrument measurements, errors in on-site or sampling analyses, and errors that arise due to the lack of measuring instruments. So in fact, the error is likely related to both the model you build and the number of factors taken into consideration.