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Separation of Neopentane from Other C4 Hydrocarbons on the Rt-Alumina/MAPD

GC_PC1384
PeakstR (min)Conc. (mol. %)
1.Methane2.4225.02
2.Ethane3.4334.027
3.Ethylene4.8661.989
4.Propane5.996.03
5.Cyclopropane8.8980.03
6.Propene9.6573.026
7.Isobutane10.4935.028
8.Butane11.0444.028
9.Allene11.3340.983
10.Acetylene11.3341.013
11.2-Butene, (E)-15.0713.016
PeakstR (min)Conc. (mol. %)
12.1-Butene15.4522.015
13.Neopentane15.9760.013
14.1-Propene, 2-methyl-16.1181.003
15.2-Butene, (Z)-16.452.028
16.Butane, 2-methyl-17.0050.996
17.Pentane17.5762.013
18.1,3-Butadiene18.8923.016
19.2-Pentene, (E)-20.7870.201
20.2-Butene, 2-methyl-21.2740.211
21.1-Pentene21.5930.403
22.2-Pentene, (Z)-22.1070.402
23.Hexane24.0250.401
ColumnRt-Alumina/MAPD, 50 m, 0.53 mm ID, 10 µm (cat.# 19778)
Standard/SampleRefinery Gas #4 (DCG Partnership, LTD)
Diluent:Helium
Conc.: 250 μL injected via gastight syringe (cat.# 24572)
Injection
Inj. Vol.:250 µL split (split ratio 10:1)
Liner:4.0 mm ID precision liner w/ wool (cat.# 23305)
Inj. Temp.:280 °C
Split Vent Flow Rate:61.927 mL/min
Gas Saver Time:2 min
Gas Saver Flow Rate:20 mL/min
Oven
Oven Temp.:30 °C (hold 1 min) to 80 °C at 30 °C/min (hold 2 min) to 170 °C at 6 °C/min (hold 5 min)
Carrier GasHe, constant pressure (7.24 psi, 49.9 kPa)
Linear Velocity:6.1927 cm/sec @ 280 °C
Dead Time:2.0481 min @ 30 °C
DetectorFID @ 280 °C
Make-up Gas Flow Rate:45 mL/min
Make-up Gas Type:N2
Hydrogen flow:40 mL/min
Air flow:400 mL/min
Data Rate:50 Hz
InstrumentAgilent 7890A GC
Sample Preparation250 μL injected via gastight syringe (cat.# 24572).