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Can air or N2 be used to unload 67% nitric acid from truck to an atmospheric storage tank or do trucks normally have their own pumps? Can magnetic pumps be used to unload a truck, what metallurgy? Whats best way to unload?

This is actually a safeguarding mitigation to keep from having operators manually close WKM and open the Decoke valves simultaneously with hand wheels and monitor pressure. The would like to automate the manual task with DCS using MOV's on the valves which are gate valves which I don't think...

A client plans to simultaneously (USING DCS system) close one motor driven (MOV) valve (WKM valve to Pyrofrac) and at some point in time open another MOV valve (Decoke valve to Decoke, Such that pressures are balanced during the operation. What is a logical way to design this knowing the valves...

thanks guys for the tips...I can movve on from here.

thanks..we have that side stream planned as an alternate idea but wanted to distribute it evenly across catch basin say via an 8 ft perforated pipe for plant reasons. know how to size the holes if 20 gpm is used? the pump is just a 150 psi positive displacement metering pump.

Does anyone know how to design a distribution header (sparger) for a cooling tower for 93% sulfuric acid.? The normal flow rate is 0.014 gpm (0.038 gpm max). Can this be even done using pure acid. or should a water carrier line be used....what water flow rate should be used if water carrier is...

Does anyone have knowledge of the MTBE process itself works in refinery operation or know where to find info on web or other sources (e.g. magazine articals). The more descriptive the better. I'm doing safeguarding mitigation and need to know as much as possible about this.

Thanks for the tips and I agree with all you said about vendors. In the mean time I'll be using Kister and Perry's for the calculations. Thanks

Can anyone tell me how "Downcomer Flood" can be manually easily calculated (for valve trays) based on both "backup flooding" approach and also "choke flooding" approach. I need to calculate it in percent form (however that is done) so I can compare it to a percent...