GC-IMS-SILOX

Siloxane Identification at ppb in Biogas

  • Identification of Siloxanes in Biogas at ppb, In-line, using GC-IMS™ Identification of Siloxanes in Biogas at ppb, In-line, using GC-IMS™
  • Identification of Siloxanes in Biogas at ppb, In-line, using GC-IMS™ Identification of Siloxanes in Biogas at ppb, In-line, using GC-IMS™
GC-IMS-SILOX at a glance

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The GC-IMS-SILOX is a multipurpose analytical instrument combining the separation afforded by Gas Chromatography with the very sensitive detection of Ion Mobility Spectrometry. This portable instrument is capable of quantifying and identifying quickly and easily in-line Siloxanes, as low as ppb, within a Biogas matrix; providing cost-effective determination of biogas quality and filter-breakthrough events for biogas electricity generation applications.

This is a excellent instrument when rapid, sensitive, accurate and quantitative analysis of gas samples is needed.

Read about the Biogas Siloxanes problem…

Features

  • Very fast, returning an analysis result within minutes
  • Rugged and robust, can be operated in tough environments
  • No need for helium or vacuum pumps, works at atmospheric pressure with CO2 or nitrogen gas.
  • Extremely sensitive to low ppbv or even pptv level
  • Suitable to be deployed in-line, at-line or standalone
  • Integrated software can be interacted with on the instrument or data moved to a PC for further analysis
  • Identification and quantification of siloxanes in biogas generation

Applications

There are many other applications for the GC-IMS™ instrument, aside from Siloxanes analysis. Some of the most notable applications are:

  •     Air safety in industrial environments (aluminium industry, chemical and explosive manufacturing, etc.)
  •     Identification and quantification of natural gas odours
  •     Early identification and quantification of H2S in gas and oil exploration

Specification

Working principle Ion Mobility Spectrometry with chromatographic pre-separation
Ionisation method Radioactive ß-radiation
Source Tritium (3H)
Activity 300 MBq, below the exemption limit of 1 GBq acc.to EURATOM guideline, no licence necessary
Column type Multi Capillary Column (MCC), type depending on application
Sampling Heated electrical 6-port-valve (stainless steel), Gas tight loop (1-10 mL)
Start-up time 5 minutes
Spectra analysis time Few seconds
Detection limits Typically in the low ppbv-range
Dynamic range Typically 1-3 order of magnitude
Display 6.4” TFT, VGA-display
Input unit Rotary pulse encoder, ESC- push-button
Processor 400 MHz x-Scale
Data acquisition Ultra fast ADIO-board
Data processing X-Board / Baseboard
Data storage Min. 1GB compact-flash memory or USB-Stick
Communication RS232, USB, Ethernet
Electrical connectors 2 x D-Sub 9-pole (for modem, console) D-Sub 15-pole (for external devices) RJ45 (for digital modem or SSH) 2 x USB-A
Power supply 100 – 240 V AC, 50-60 Hz (external) 24 V DC / 5A, XLR-connector (internal)
Power consumption < 120 Watt
Dimensions 449 x 375 x 177 mm or 17.7“ x 14.8“ x 7.0“ (WxDxH)
Weight 15,5 kg or 34,2 lb
Housing 19” compatible, IP 20 enclosure, EMC certified
Cooling Axial ventilator, speed control temperature related, max. 5,5 m3/h
Gas connectors 3 mm stainless steel Swagelok connectors for drift gas inlet, sample gas in- and outlet, carrier gas inlet and IMS gas outlet)