PGC 9300 Series Process Gas Chromatographs

Gas chromatograph for analysis of natural gas and biogas

  • PGC 9301: for natural gases
  • PGC 9302: for biogas
  • PGC 9303: for mixed gas
  • PGC 9304: for mixed gas with hydrogen admixture of up to 20%
  • Suitable to measure the gas components (see table), of which the following is calculated: calorific value, standard density, Wobbe index and relative density
  • The analysis system consists of the components:
    – analyzing unit with 2 or 3 column modules
    – analytical computer with archives
  • Calculation of calorific value according to ISO 6976 and GPA 2172
  • Automatic recalibration
  • Multistream version for up to 4 gas streams
  • Calculation of the methane number (option)
  • Windows based operating software RMGViewGC with functions like
    – viewing, changing and export of parameters
    – parameter report editor
    – displaying and saving chromatograms
PTB approved for natural gas and biogas,
also for natural gas with oxygen and hydrogen fractions up to 5%.
Carrier gas
Helium (also for hydrogen measurement)
optionally argon as second carrier gas
Inlet pressures
Carrier gas 5.5 bar
Measuring gas 1.5 bar
Analytical computer
19”-module 3 HE (48 TE)
Touchscreen
Help texts explaining the parameters
Customer-programmable screen with 20 measured values or parameters
Inputs for external messages (e.g. contact manometers) and measured values (e.g. dew point)
Output signals
Ethernet interface
Serial interfaces
DSfG-interface according to DVGW G 485
Modbus interface
Digital and analog outputs

Measured components and measuring ranges

Component

Content (mol%)

 

PGC 9301

PGC 9302

PGC 9303

PGC 9304

Nitrogen

0 - 20

0 - 20

0 - 20

0 - 25

Methane

65 - 100

70 - 100

65 - 100

55 - 100

Carbon dioxide

0 - 10

0 - 8

0 - 10

0 - 12

Ethane

0 - 15

0 - 15

0 - 15

0 - 15

Propane

0 - 5,5

0 - 9

0 - 9

0 - 9

i-Butane

0 - 4

0 - 4

0 - 4

0 - 4

n-Butane

0 - 4

0 - 4

0 - 4

0 - 4

neo-Pentane

0 - 0,08

-

zu n-Butan

zu n-Butan

iso-Pentane

0 - 0,15

-

0 - 0,15

0 - 0,3

n-Pentane

0 - 0,15

-

0 - 0,15

0 - 0,3

Hexane

0 - 0,3*

-

0 - 0,3*

0 - 0,3*

Heptane

-

-

-

-

Octane

-

-

-

-

Nonane

-

-

-

-

Oxygen

-

0 - 5

0 - 5

0 - 5

Hydrogen

-

0 - 5

0 - 5

0 - 20

Helium

-

-

-

0 - 1

* PTB approval pending
** Hexane sum (C6+)

Standard density: 0,7 - 1.1 kg/m3
Superior calorific value: 7,2 - 15.5 kWh/m3

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