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I have a gas flow through an 8" pipe into a 14" diameter cylinder over a length of approx. 16" then emerging into a pressure vessel. We have used similar configurations for the past 30 odd years. I have always used 7.5 degrees as the approx. half angle of divergence as the flow emerges from a...

Steve, much appreciate you taking the time to provide this excellent response.

It is for an onshore, industrial location, Steve. Do you agree that carbon steel is unsuitable for this CO2 + H2O composition ?

We are designing a process unit that has a gas flow with the following composition : 14mol%CO2,84%CH4,the rest is Ethane, Propane, Butane and Pentane. The various lines operate at 75 barg with temperatures ranging from 50°C to 230°C with a water content of 0.2 to 1.7 mol% and a 1% vapour...

We have to select piping and valve materials suitable for a hydrogen gas stream containing 95 mol% H2, 2%N2, 3%CH4, 0.25%H2O, 0.1%CH3CN, 0.01%HCN, 50ppm NH3. Design conditions are 33 barg at 100°C. We design units for hydrogen gas streams on a regular basis using carbon steel piping and valves...