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Envent Engineering Ltd.

Model 132
Process gas chromatographs for gas processing applications

132 Gas Chromatograph
Model 132 GC

Cryogenic Plants, Refrigeration plants and full NGL fractionation Processes have a multitude of applications for analysis of Natural Gas and Natural Gas Liquids (NGLs).

The Model 132 Gas Chromatograph (GC) was designed specifically for these demanding process applications by:

  1. Analyzing multiple streams with diverse compositions to C6+ (C7+ optional).
  2. A Lower sample system oven.
  3. Utilizing double block & bleed stream selectors to eliminate potential cross stream contamination between natural gas and NGL’s.
  4. Fast Analysis times (3-5 minutes) will ensure the process control benefits that provide NGL product that is on spec. The result is an accurate, rapid analysis for NGL’s & natural gas in one analyzer.

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Features
  • Ranges from 0-500 ppm to 0-100%
  • < 0.5 BTU Repeatability
  • Windows®-based interface
  • Data Logging standard
  • Serial Communications: RS-232, RS-485
  • Dual 4-20 mA outputs
  • Configurable Modbus
  • 10-port Injection valve
  • Thermistor-based TCD
  • No Instrument air required
  • Dual-Stream capability and calibration
Downloads
Certification
Applications

Typical applications include:

  • Gas Processing: Plant Inlet, Sales/Outlet, Sour Gas Pipeline Blending
  • Amine Units: H2S for sulfur balanced/acid gas
  • NGL Fractionation: De-ethanizer, De-propanizer and De-butanizer tops and bottoms
  • C5+ Condensate
  • C9+ with Hydrocarbon Dewpoint
  • Waste and Fuel Gas Analysis
  • Biogas and Landfill
  • SAGD
  • Custom Applications
Value

The 131/132 offers state-of-the-art electronics at a very competitive price. The 131/132 is designed to be a rugged and simple to operate platform for process measurements.

The TCD and injection valve and columns utilized in the 131/132 are time proven devices. The electronic platform is unique to the 131/132 system and provides on-line, real-time analysis as well as a full list of configurable features for data handling, alarm functions and special functions. The Windows®-based configuration software allows the user to view recent or saved chromatograms as well as configure the analyzer for the application.

Specifications
Environmental Temperature0° to 50°C (32° to 122°F).
Dimensions30.5″ H x 13.2″ W x 7.4″ D (no sample system),
(77.6cm H x 33.5cm W x 18.7cm D).
MountingWall mount or Floor mount
WeightApproximately 120lbs (54 kgs).
Electrical classificationCertified for Class I, Division 2, Groups A, B, C, D, T3.
Power120 VAC 50/60 Hz Standard,
240 VAC 50/60 Hz Available
Power ConsumptionStart up (GC Only): 175 watts.
Steady State: 100 watts nominal.
SCS Oven Start-up: 600 watts
Steady State: 200 watts nominal including 1 VPR
OvenAirless, maximum 100°C (212°F).
ValvesSix-port and ten-port diaphragm chromatograph valves. Liquid injection rotary valves
Repeatability20% – 100%: +/- 0.5 of full span.
2 – 20%: +/- 1% of full span.
0.1% – 2%: +/- 2% of full span.
50ppm – 1000ppm: 4% of full span.
Carrier GasApplication-dependent. Typically UHP Helium (99.995%),
Typically 414 – 690kPa (60 – 100psig),
DetectorThermal conductivity detector (TCD).
Gating OptionsFixed-time, auto-detection.
StreamsUp to 6 streams (includes calibration streams).
Communications*Two analog outputs.
*Four dry contact relay outputs.
Four digital inputs.
Eight digital outputs.
Two RS-232 serial communication ports.
Four RS-485 serial communication ports.
One Ethernet communications port.
*Eight additional analog outputs and four additional dry contact relays with Analog Expander Board (optional).
Archives4MB static RAM (typically 6 months of data).
23 Analysis Reports.
23 Raw Data Reports.
100 Calibration Reports.
Alarm Reports.
Physical Property CalculationsGas Calculations:

  • Mole %
  • Gross Dry BTU
  • Net Dry BTU
  • Relative Density
  • Compressibility (Zb)

NGL Calculations:

  • Mole %
  • Weight %
  • Liquid Volume %
  • GPM

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