Articles
CO2 Injection At A Pepsi Plant
March 11, 2009
•White Paper: CO2 Injection At A Pepsi Plant
By Membrana
CO2 Injection at a Pepsi Plant. For the past 18 months, we have used a new, highly efficient membrane technology for beverage carbonation. Coupled with mass flow measurement and PLC control, we achieve straight-line carbonation performance under typical filler start-stop conditions. Accuracy is typically 0.25% of CO2 set point as measured at the outlet of the system. This is equivalent to +/-.01 CO2 volumes for a 4.0 volume beverage.
This performance level is a significant improvement over other carbonation technologies which report accuracies ranging from 1.0% to 2.5% of CO2 set point.
In order to automate processor operation, achieve straight-line brix and CO2 control, and continuously acquire and report performance and yield data, mass flow meters were used on the processor to measure, control, report and trend water, syrup, and CO2 flow rates.
Because mass flow systems are more easily adapted to in-line, real-time, single-point measurement and control, conventional processing system design was reviewed and modified.
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