lomli
Petroleum
- Apr 27, 2008
- 26
HI
WE ARE DESIGNING A GAS RECOVERY SYSTEM FROM A PROPANE REFRIGERATION LOOP.
PROPANE VAPORS RECOVERED WILL BE REINJECTED IN A BOIL-OFF SYSTEM TO BE COMPRESSED AND LIQUEFIED AGAIN WITH VAPORS COMING FROM STORAGE TANKS.
THE TIE-IN POINT IS LOCATED AT ABOUT 100 M FROM THE RECOVERY POINT IN THE BOIL-OFF COLLECTOR IN WICH PRESSURE MUST NOT EXCEED 0.15 KG/CM2.
THE RECOVERED GASES PRESSSURE VARIES FROM 5 TO 3 KG/CM.
THE OPERATION TAKES ABOUT 30 MINUTES BY MEANS OF A RSTRICTION ORIFICE.
AT THE INJECTION POINT, A PRESSURE CONTROL VALVE MUST DECREASE THE PRESSURE TO ABOUT 0.15 KG/CM2 WHATEVER PRESSURE OR FLOW WILL CHANGE.
THE CONTROL VALVE MUST GIVE 0.15 KG/CM2 AT THE OUTLET EITHER PRESSURE IS 5 - 4 - 3 KG/CM2, AND FOR VAIRABLE FLOWRATE.
I'M ASKING IF SUCH VALVES EXIST, IF YES HELP TO GET SPECIFICATIONS AND DESIGN CALCULATION METHOD AND A SCHEMATIC FOR THE CONTROL LOOP.
THANK YOU VERY MUCH.
WE ARE DESIGNING A GAS RECOVERY SYSTEM FROM A PROPANE REFRIGERATION LOOP.
PROPANE VAPORS RECOVERED WILL BE REINJECTED IN A BOIL-OFF SYSTEM TO BE COMPRESSED AND LIQUEFIED AGAIN WITH VAPORS COMING FROM STORAGE TANKS.
THE TIE-IN POINT IS LOCATED AT ABOUT 100 M FROM THE RECOVERY POINT IN THE BOIL-OFF COLLECTOR IN WICH PRESSURE MUST NOT EXCEED 0.15 KG/CM2.
THE RECOVERED GASES PRESSSURE VARIES FROM 5 TO 3 KG/CM.
THE OPERATION TAKES ABOUT 30 MINUTES BY MEANS OF A RSTRICTION ORIFICE.
AT THE INJECTION POINT, A PRESSURE CONTROL VALVE MUST DECREASE THE PRESSURE TO ABOUT 0.15 KG/CM2 WHATEVER PRESSURE OR FLOW WILL CHANGE.
THE CONTROL VALVE MUST GIVE 0.15 KG/CM2 AT THE OUTLET EITHER PRESSURE IS 5 - 4 - 3 KG/CM2, AND FOR VAIRABLE FLOWRATE.
I'M ASKING IF SUCH VALVES EXIST, IF YES HELP TO GET SPECIFICATIONS AND DESIGN CALCULATION METHOD AND A SCHEMATIC FOR THE CONTROL LOOP.
THANK YOU VERY MUCH.