IPE-TM-500 Pumps & Compressors
Attachments
IPE-TM-500-04
Inflection Point Engineering IPE-TM-500-04 Attachment 1
Hydraulic Tabulation
CESKA RAFINERSKA NOTE - These data are of a confidential nature Page
KRALUPY, CZECK REPUBLIC and the property of Inflection Point Engineering INC. Des Plaines, Date FEB 13,'98
Inflection Point Engineering ROPYLENE RECOVERY PROCESS UNIT Illinois, USA, and shall not be traced, Proj 555086-C.1-0
FCC PROJECT photographed, photostated or reproduced in any By CAAUSTIN
manner nor used for any purpose whatsoever EFID
CASE A: ES SIDER FEED except by written permission of Inflection Point Engineering INC.
Circuit 5: REBOILER/CONDENSER Normal Case Design Case Alternate
Press 100.0% 110.0% 50.0%
Drop --------------- --------------- ---------------
Line 100 Per Nozl Press Inlet Press Inlet Press Inlet
Size Eq 100 m Elev Drop Press Drop Press Drop Press
Equipment Identification in m kpa mm kpa kpag kpa kpag kpa kpag
COMPRESSOR SUCTION DRUM 9600 1076 1076 1076
Line 320 16 0.3 6.97 2.12 1076 2.57 1076 0.53 1076
ORIFICE 16 0.83 1073 1.00 1073 0.21 1075
Line 319 16 0.3 6.97 2.07 1073 2.51 1072 0.52 1075
COMP.SUCTION/DRUM VAPOR DISCHARGE*Swage* 18 8.53 1071 8.53 1070 2.13 1074
Line 321 16 0.3 7.06 2.15 1062 2.60 1061 0.54 1072
HEAT PUMP COMPRESSOR -762.0 1060 -790.3 1058 -309.2 1072
Compressor capacity, m3/hr 5677.4 6245.2 2838.7
Relative Mol Mass 42.1
Suction Temperature, degC 25
Discharge Temperature, degC 55
Suction Cp/Cv Ratio (Ideal) 1.147
Discharge Cp/Cv Ratio (Ideal) 1.136
Line 322 12 1.7 14.89 24.97 1822 30.21 1849 6.24 1381
HEAT PUMP COMPRESSOR SPILLBACK SPLITTER 1797 1818 1375
Line 330 12 .99 14.89 14.75 1797 17.85 1818 3.69 1375
C3 SPLITTER TRIM CONDENSER SPLITTER 1782 1801 1371
Line 340 12 .99 11.80 11.68 1782 14.14 1801 2.92 1371
C3 SPLITTER REBOILER 32.64 1770 39.49 1786 8.16 1368
Line 341 8 .72 8.50 6.13 1738 7.42 1747 1.53 1360
REBOILER/CONDENSER OUTLET FRC[1706] 8 8.76 1732 8.76 1740 2.19 1358
Line 343 8 .18 8.50 1.51 1723 1.82 1731 0.38 1356
HEAT PUMP COMPRESSOR CV[1606] 451.71 1721 451.71 1729 112.93 1356
Line 342 10 .86 10.64 9.13 1270 11.05 1277 2.28 1243
C3 SPLITTER REFLUX MIXER 1261 1266 1241
Line 353 10 1.1 11.29 12.27 1261 14.85 1266 3.07 1241
Static Head 73950 155.77 1248 155.77 1251 155.77 1238
C3 SPLITTER 73950 3.45 1089 4.17 1091 0.86 1081
Inflection Point Engineering IPE-TM-500-04 Attachment 2
P9.8 - THERMODYNAMIC OPERATIONS Inflection Point Engineering
PROPERTY FLAGGING REPORT
CESKA RAFINERSKA NOTE - THE INFORMATION IN THIS DOCUMENT IS PAGE
KRALUPY, CZECK REPUBLIC CONFIDENTIAL AND THE PROPERTY OF Inflection Point Engineering, AND DATE DEC 29,'98
Inflection Point Engineering ROPYLENE RECOVERY PROCESS UNIT MUST NOT BE DISCLOSED TO OTHERS OR REPRODUCED IN PROJ 555086-B.1-0
FCC PROJECT ANY MANNER OR USED FOR ANY PURPOSE WHATSOEVER BY CAAustin
WITHOUT ITS WRITTEN PERMISSION. DFID 555086D280
CASE A: ES SIDER FEED
PROPERTY
STREAM NUMBER |301 |310 |312 |320 |322 |331 |332 |
TEMPERATURE DEG C|29.58 |25.57 |25.57 |25.57 |55.03 |55.03 |37.78 |
PRESSURE KPA (G)|1140 |1078 |1078 |1078 |1853 |1853 |1818 |
MOLE FLOW KG MOLE/H|221 |3253 |3253 |3291 |3291 |363.5 |363.5 |
WEIGHT FLOW KG/H|9417 |136920 |136920 |138500 |138500 |15298 |15298 |
ENTHALPY MW|0.2625 |13.74 |13.74 |13.9 |15.14 |1.673 |0.2609 |
VAPOR PRESSURE KPA (A)|---- |---- |---- |---- |---- |---- |---- |
VAPOR PHASE | | | | | | | |
VOLUME FLOW (FLWG) M3/H|68.39 |5538 |5538 |5602 |3460 |382.2 |---- |
MOLE FLOW KG MOLE/H|42.18 |3253 |3253 |3291 |3291 |363.5 |---- |
WEIGHT FLOW KG/H|1794 |136920 |136920 |138500 |138500 |15298 |---- |
ENTHALPY MW|0.1819 |13.74 |13.74 |13.9 |15.14 |1.673 |---- |
MOLE WEIGHT KG/KG MOLE|42.54 |42.08 |42.08 |42.08 |42.08 |42.08 |---- |
DENSITY (FLWG) KG/M3|26.24 |24.72 |24.72 |24.72 |40.02 |40.02 |---- |
SPECIFIC HEAT KJ/KG-DEG C|1.997 |1.929 |1.929 |1.929 |2.204 |2.204 |---- |
VISCOSITY CENTIPOISE|0.008906 |0.008902 |0.008902 |0.008902 |0.009581 |0.009581 |---- |
CONDUCTIVITY W/M-DEG C|0.02003 |0.01942 |0.01942 |0.01942 |0.02286 |0.02286 |---- |
COMPRESSIBILITY |0.7994 |0.808 |0.808 |0.808 |0.7529 |0.7529 |---- |
CP/CV (IDEAL GAS) |1.14 |1.147 |1.147 |1.147 |1.136 |1.136 |---- |
PSEUDO CRITICAL T DEG K|366.6 |365.6 |365.6 |365.6 |365.6 |365.6 |---- |
PSEUDO CRITICAL P KPA (A)|4576 |4663 |4663 |4663 |4663 |4663 |---- |
TRUE CRITICAL T DEG K|366.7 |365.6 |365.6 |365.6 |365.6 |365.6 |---- |
TRUE CRITICAL P KPA (A)|4586 |4664 |4664 |4664 |4664 |4664 |---- |
LIQUID PHASE | | | | | | | |
VOLUME FLOW (STD) STD M3/H|14.73 |---- |---- |---- |---- |---- |29.4 |
VOLUME FLOW (FLWG) M3/H|15.34 |---- |---- |---- |---- |---- |31.47 |
MOLE FLOW KG MOLE/H|178.8 |---- |---- |---- |---- |---- |363.5 |
WEIGHT FLOW KG/H|7623 |---- |---- |---- |---- |---- |15298 |
ENTHALPY MW|0.08053 |---- |---- |---- |---- |---- |0.2609 |
DENSITY (STD) KG/M3|517.4 |---- |---- |---- |---- |---- |520.4 |
Inflection Point Engineering K FACTOR |14.33 |---- |---- |---- |---- |---- |14.21 |
MOLE WEIGHT KG/KG MOLE|42.64 |---- |---- |---- |---- |---- |42.08 |
DENSITY (FLWG) KG/M3|496.8 |---- |---- |---- |---- |---- |486.1 |
SPECIFIC HEAT KJ/KG-DEG C|2.863 |---- |---- |---- |---- |---- |2.99 |
VISCOSITY CENTIPOISE|0.04973 |---- |---- |---- |---- |---- |0.04866 |
CONDUCTIVITY W/M-DEG C|0.1271 |---- |---- |---- |---- |---- |0.1259 |
SURFACE TENSION DYNE/CM|5.481 |---- |---- |---- |---- |---- |4.559 |
PSEUDO CRITICAL T DEG K|366.8 |---- |---- |---- |---- |---- |365.6 |
PSEUDO CRITICAL P KPA (A)|4563 |---- |---- |---- |---- |---- |4663 |
TRUE CRITICAL T DEG K|367 |---- |---- |---- |---- |---- |365.6 |
TRUE CRITICAL P KPA (A)|4577 |---- |---- |---- |---- |---- |4664 |
WATER PHASE | | | | | | | |
WEIGHT FLOW KG/H|---- |---- |---- |---- |---- |---- |---- |
ENTHALPY MW|---- |---- |---- |---- |---- |---- |---- |
Attachments
IPE-TM-500-04 C3 Splitters Heat Pump Compressor
1. Purpose
This procedure specifies the reason for using (Cp/Cv) ideal for C3 splitter heat pump compressor.
2. Guideline
For most hydrogen-containing recycle compressors, (Cp/Cv) real is very close to (Cp/Cv) ideal. However, C3 Splitter Heat Pump Compressors handle virtually 100% propylene and the( Cp/Cv) real is about 1.31, whereas (Cp/Cv) ideal is about 1.14.
Compressor vendors normally calculate k or (Cp/Cv) based on gas composition and use the (Cp/Cv) ideal in their calculations. Therefore, for C3 Splitter Heat Pump Compressors, Design Engineers and Rotating Equipment Specialists will refer to the (Cp/Cv) ideal in the Compressor Process Summary and Compressor Specification. Using (Cp/Cv) real in compressor calculations will result in an incorrect statement of utility requirements (and surface condenser duty if the compressor is turbine driven).
Note that only (Cp/Cv) real is reported in the property page of 9.8 heat and weight balance output report. The value of (Cp/Cv) ideal may be obtained or calculated from 9.8 data as follows:
2.1 From Compressor Hydraulic Circuit Tabulation sheet (See Attachment 1)
OR:
From Stream property which is generated for the EDI book (See Attachment 2)
OR:
From 9.8 interactive: Do the following GFCN to obtain Compressor Data which contains (Cp/Cv) ideal:
GFCN BEG 98023 1500 Suction Stream Number Discharge Stream Number
2.2 Calculate as follows:
Obtain Cp ideal by 9.8 interactive: QF stream and then GVP GET P8
(Cp/Cv) ideal = (Cp)(MW) R=1.987
(Cp)(MW)-R
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© 2026 Inflection Point Engineering, LLC. All rights reserved.