OLI Client Successes
 

CLIENT SUCCESSES

Step 2
First transformation has been done, but how can we know the brine input is representative? By checking alkalinity and CO2 amounts!

This could be your story! A collection of stories on how OLI clients gain assurance and confidence in OLI simulations

Reconciling a lab sample to the atmosphere
Chimec, Italy
March 2018

Our client Walter Guerani from Chimec SpA in Italy wanted to model recirculating cooling tower water and wasn’t sure whether to ‘trust’ the pH / alkalinity measurements he received. Using his knowledge that the partial pressure of CO2 in the atmosphere is .04 mole%, he setup Studio ScaleChem to reconcile his inputted data for pH and alkalinity, using the “CO2 fraction in gas” option, and setting the CO2 partial pressure to the atmosphere value. The result: his lab measurements and OLI calculations for pH and alkalinity were very close. Thus, he gained confidence and assurance that his sample was taken properly, and that OLI can, in fact, model this chemistry accurately.  Here are three excerpts from his  work process: 

Step 1
Looking over the lab information, what transformations are needed to get an accurate brine input into the software?  

Step  2
First transformation has been done, but how can we know the brine input is representative? By checking alkalinity and CO2 amounts!

Step  3
Using the knowledge of PCO2 in the atmosphere, the program gives an alkalinity extremely close to the lab sample. This puts any calculations done on this reconciled sample on very sure ground! 

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