vapor-solid flash to model a blow down 1

[czer]

I am modeling a rapid depressurisation (blowdown valve plus orifice plate) of a pressure vessel operating at about 10 C 180 Atm containing a mixture of C1-C7 plus N2 and about 15 % Co2,
I had been cautioned to evaluate freezing temperature (Co2), eventually I have modeled the process with Prode Properties, according the model (multiphase adiabatic flash, SRK equation) the discharging stream has vapor plus about 13% solid phase.
I have read a paper discussing solutions based on multiple orifice plates which could reduce the problem, could you suggest a vendor for those devices?

 

[apetri]

I may be wrong but assuming an "adiabatic" (i.e. without work or heat exchanged) process I fear that also in the case of the vapor expansion through a series of several orifice plates the (final) discharging temperature will not be very different,
perhpas you may consider different alternatives.

 

[cosh]

perhaps you may find some information at GPA

 

[godel123]

what is GPA?

 

[drilling53]

could it be the Gas Processors Association ?

 

[xeng]

is that a supercritical fluid ?

 

[marcsant]

we have full bore ESD valves for HP separators depressurization,
no problems till now...