This is a differential flowmeter used for measuring CO2 emissions in Lowstream Refinery. Its a DN1400 pipe with flow disturbing element, and measures pressure difference infront of and behind the cone, pressure difference is then electronically calculated into flow rate. Accuracy is 0,5% and saves milions of euros every year on emission allowances. All you need to do is input the density of the gas.
Looks like it could be used for distillation.
the real answer from reddit
This is a differential flowmeter used for measuring CO2 emissions in Lowstream Refinery. Its a DN1400 pipe with flow disturbing element, and measures pressure difference infront of and behind the cone, pressure difference is then electronically calculated into flow rate. Accuracy is 0,5% and saves milions of euros every year on emission allowances. All you need to do is input the density of the gas.
:::