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Agilent Technologies 490 Micro GC User Manual

Natural gas analyzer
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Agilent 490
Micro GC Natural Gas
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User Manual
Agilent Technologies

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Summary of Contents for Agilent Technologies 490 Micro GC

  • Page 1 Agilent 490 Micro GC Natural Gas Analyzer User Manual Agilent Technologies...

  • Page 2: Safety Notices

    Further, to the max- agreement and written consent from imum extent permitted by applicable Agilent Technologies, Inc. as governed by C AU TI ON law, Agilent disclaims all warranties, United States and international copyright either express or implied, with regard laws.

  • Page 3: Table Of Contents

    Agilent 490 Micro GC - Natural Gas Analyzers Introduction Types of Agilent 490 Micro GC - Natural Gas Analyzers Agilent 490 Micro GC - Natural Gas Analyzer A and the Extended Version Natural Gas Analyzer A Natural Gas Analyzer A Extended...
  • Page 4 Appendix A: Certificate of the NGA Gas Calibration Standard Appendix B: Certificate of the Universal Gas Calibration Standard Appendix C: Typical Method Settings for Natural Gas Analyzers Appendix D: Carrier Gas Type Configuration Procedure to Change the Carrier Gas Type Appendix E: Method for CP-Molsieve 5A Channel with Carrier Gas Argon Natural Gas Analyzer...

  • Page 5: Agilent 490 Micro Gc - Natural Gas Analyzers

    • The Agilent 490 Micro GC - Natural Gas Analyzer A • The Agilent 490 Micro GC - Natural Gas Analyzer A Extended • The Agilent 490 Micro GC - Natural Gas Analyzer B • The Agilent 490 Micro GC - Natural Gas Analyzer B Extended...

  • Page 6: Agilent 490 Micro Gc - Natural Gas Analyzer A And The Extended Version

    Agilent 490 Micro GC - Natural Gas Analyzers Agilent 490 Micro GC - Natural Gas Analyzer A and the Extended Version Natural Gas Analyzer A The Agilent 490 Micro GC - Natural Gas Analyzer A is used to analyze natural gas samples containing methane, carbon dioxide, and hydrocarbons up to n-nonane.

  • Page 7: Agilent 490 Micro Gc - Natural Gas Analyzer B And The Extended Version

    Agilent 490 Micro GC - Natural Gas Analyzers Agilent 490 Micro GC - Natural Gas Analyzer B and the Extended Version Natural Gas Analyzer B The Agilent 490 Micro GC - Natural Gas Analyzer B is used to analyze methane, carbon dioxide, hydrogen sulfide, and light hydrocarbons up to n-nonane in natural gas.

  • Page 8: Checkout Information

    • 4 meter CP-Sil 5 CB • CP-Molsieve 5A • PoraPLOT U The final checkout of the Agilent 490 Micro GC - Natural Gas Analyzer is performed with a NGA Gas Calibration standard and a Universal Gas Calibration standard. • The NGA Gas Calibration standard contains nitrogen, methane, ethane, carbon dioxide, propane, iso-butane, n-butane, iso-pentane, n-pentane, and n-hexane.
  • Page 9 27 Appendix B page The components specified for each channel are described in “Agilent 490 Micro GC - Natural Gas Analyzer A and the Extended Version” on page 6 and “Agilent 490 Micro GC - Natural Gas Analyzer B and the Extended Version”...

  • Page 10: Natural Gas Analyzer A And The A Extended Version

    Checkout Information Natural Gas Analyzer A and the A Extended Version HayeSep A straight The HayeSep A channel of the Natural Gas Analyzer A is specified for the analysis of methane, carbon dioxide, ethane, and propane. Analysis of the NGA Gas Calibration standard results in the chromatogram shown in Figure Analysis of the Universal Gas Calibration standard results in a...

  • Page 11: Meter Cp-Sil 5 Cb

    Checkout Information 6 meter CP-Sil 5 CB The 6 meter CP-Sil 5 CB channel of the Natural Gas Analyzer A is specified for the analysis of light hydrocarbons from propane up to n-nonane. Analysis of the NGA Gas Calibration standard results in a chromatogram similar to Figure Analysis of a sample containing neo-pentane results in a...
  • Page 12 Checkout Information Analysis of the Universal Gas Calibration standard results in a chromatogram similar to Figure Analysis of a sample containing heavier hydrocarbons up to n-nonane results in a chromatogram similar to Figure If a sample contains hydrocarbons up to n-nonane ensure that the total run time is increased sufficiently to detect all hydrocarbons on this channel.

  • Page 13: Hayesep A Backflush

    Checkout Information HayeSep A backflush The HayeSep A channel, with backflush option, of the Natural Gas Analyzer A Extended is specified for the analysis of methane, carbon dioxide, ethane, and propane. Analysis of the NGA Gas Calibration standard results in the chromatogram shown in Figure Analysis of the Universal Gas Calibration standard results in a...

  • Page 14: Meter Cp-Sil 5 Cb

    Checkout Information 4 meter CP-Sil 5 CB The 4 meter CP-Sil 5 CB channel of the Natural Gas Analyzer A Extended is specified for the analysis of light hydrocarbons propane, n-butane, iso-butane, iso-pentane, and n-pentane. Analysis of the NGA Gas Calibration standard results in the chromatogram shown in Figure Analysis of a sample containing neo-pentane results in a...
  • Page 15 Checkout Information Analysis of the Universal Gas Calibration standard results in the chromatogram shown in Figure 15.0 12.5 10.0 Seconds Figure 11 Universal Gas Calibration standard analyzed with the 4 meter CP-Sil 5 CB channel on Analyzer A Extended Natural Gas Analyzers...

  • Page 16: Meter Cp-Sil 5 Cb

    Checkout Information 8 meter CP-Sil 5 CB The 8 meter CP-Sil 5 CB channel of the Natural Gas Analyzer A Extended is used for the analysis of hydrocarbons from n-hexane up to n-dodecane. The NGA Gas Calibration standard and the Universal Gas Calibration standard do not contain heavy hydrocarbons up to n-dodecane.
  • Page 17 Checkout Information Analysis of a sample containing heavier hydrocarbons up to n-decane results in the chromatogram shown in Figure Analysis of a sample that contains heavier hydrocarbons up to n-dodecane results in a chromatogram similar to Figure Seconds Figure 14 Hydrocarbon gas mix containing n-heptane to n-decane analyzed with the 8 meter CP-Sil 5 CB channel on Analyzer A Extended Seconds Figure 15 Hydrocarbon gas mix containing n-hexane to n-dodecane analyzed with the 8 meter CP-Sil 5 CB...

  • Page 18: Natural Gas Analyzer B And B Extended Version

    Natural Gas Analyzer B and B Extended Version PoraPLOT U The PoraPLOT U channel of the Agilent 490 Micro GC - Natural Gas Analyzer B and Extended version is specified for the analysis of methane, carbon dioxide, ethane, hydrogen sulfide, and propane in natural gas samples.
  • Page 19 Checkout Information Analysis of the Universal Gas Calibration standard results in a chromatogram similar to Figure Analysis of a sample containing hydrogen sulfide results in a chromatogram similar to Figure Seconds Figure 17 Universal Gas Calibration standard analyzed with the PoraPLOT U channel on Analyzer B Seconds Figure 18 Sample containing hydrogen sulfide analyzed with the PoraPLOT U channel on Analyzer B Natural Gas Analyzers...

  • Page 20: Meter Cp Sil 5 Cb

    Checkout Information 6 meter CP Sil 5 CB The 6 meter CP-Sil 5 CB channel of the Natural Gas Analyzer B and the B Extended is specified for the analysis of hydrocarbons from propane to n-nonane. Analysis of the NGA Gas Calibration standard results in the chromatogram shown in Figure Analysis of the Universal Gas Calibration standard results in a...
  • Page 21 Checkout Information Analysis of a sample containing neo-pentane results in a chromatogram similar to Figure Analysis of a sample containing hydrocarbons up to n-nonane results in a chromatogram similar to Figure For samples that contain hydrocarbons up to n-nonane, increase the total run time to detect all hydrocarbons on this channel.

  • Page 22: Cp-Molsieve 5A

    Checkout Information CP-Molsieve 5A The CP-Molsieve 5A channel of the Natural Gas Analyzer B Extended is used for the analysis of permanent gases such as hydrogen, oxygen, nitrogen, methane, and carbon monoxide. Analysis of the NGA Gas Calibration standard results in a chromatogram similar to Figure Analysis of the Universal Gas Calibration results in the...
  • Page 23 Checkout Information The CP-Molsieve 5A channel is factory tuned on carrier gas helium. C AU TI O N If analysis of helium or hydrogen is required on the CP-Molsieve 5A channel, the carrier gas must be changed and configured for argon. The procedure for configuring the carrier gas in OpenLAB CDS EZChrom is described in Appendix D...

  • Page 24: Tuning The Backflush Time

    Agilent 490 Micro GC Natural Gas Analyzer User Manual Tuning the Backflush Time Tuning the Backflush Time on CP-Molsieve 5A, PoraPLOT U, or CP-Sil 5 CB Tuning the backflush time is necessary for each new CP-Molsieve 5A channel, PoraPLOT U channel, and 4 meter CP-Sil 5 CB channel.
  • Page 25 Tuning the Backflush Time Figure 26 shows a simple example of tuning the backflush time for the CP-Molsieve 5A channel. Tuning backflush for CP-Molsieve channel Backflush me (s) Figure 26 Effect of the backflush time on the peak of interest Natural Gas Analyzers...

  • Page 26: Tuning The Backflush Time On A Hayesep A

    Tuning the Backflush Time Tuning the Backflush Time on a HayeSep A For each new HayeSep A channel, with a backflush option, it is necessary to tune the backflush time properly. The tuning procedure of the HayeSep A channel is different than the tuning procedure of a CP-Molsieve 5A, PoraPLOT U, or 4 meter CP-Sil 5 CB channel.
  • Page 27 Agilent 490 Micro GC Natural Gas Analyzer User Manual Appendix A: Certificate of the NGA Gas Calibration Standard Part number: 5184-3536 Agilent Technologies...
  • Page 28 Agilent 490 Micro GC Natural Gas Analyzer User Manual Appendix B: Certificate of the Universal Gas Calibration Standard Part number 5184-3541 Agilent Technologies...
  • Page 29 Sample line temperature (°C) 110 * For more details of the method, see the pdf-method file available on the Natural Gas Analyzer CD. Table 2 Method for Agilent 490 Micro GC - Natural Gas Analyzer A Extended Method settings HayeSep A CP-Sil 5 CB_4m...
  • Page 30 † The backflush time must be tuned for each new CP-Molsieve 5A, PoraPLOT U, 4 meter CP-Sil 5 CB, and HayeSep A channel. Table 4 Method for Agilent 490 Micro GC - Natural Gas Analyzer B Extended Method settings CP-Molsieve 5A...
  • Page 31 User Manual Appendix D: Carrier Gas Type Configuration The Agilent 490 Micro GC - Natural Gas Analyzers are factory tuned using the carrier gas helium. When analysis of helium is required, the carrier gas must be changed to argon. Instruments with the dual carrier option are typically...
  • Page 32 Appendix D: Carrier Gas Type Configuration Procedure to Change the Carrier Gas Type If you are using Agilent OpenLAB CDS EZChrom edition, use the following procedure to change the carrier gas type. In the Agilent OpenLAB Control Panel Navigation pane, select the instrument.
  • Page 33 Appendix D: Carrier Gas Type Configuration Double-click Agilent 490 Micro GC. See Figure Figure 30 Configuration window Agilent 490 Micro GC In the EZChrom Configuration dialog box, select the Instrument configuration tab. In the Carrier gas list, select Argon. See...
  • Page 34 Figure 33 Request after configuration change Turn off the instrument. Change the carrier gas on the instrument. Restart the Agilent 490 Micro GC - Natural Gas Analyzer. The Agilent 490 Micro GC is now configured for carrier gas Argon. Natural Gas Analyzers...
  • Page 35 Agilent 490 Micro GC Natural Gas Analyzer User Manual Appendix E: Method for CP-Molsieve 5A Channel with Carrier Gas Argon Typical method setting for analysis of helium and hydrogen on the CP-Molsieve 5A channel. Table 5 Method setting for analysis of helium with Natural Gas...
  • Page 37 Agilent Technologies © Agilent Technologies, Inc. Printed in USA, May 2012 *G3582-90002* G3582-90002...

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