Siloxanes Analysis

Siloxanes Analysis

Portable & Fixed Siloxanes Analysis in Biogas and Landfill

Protea can offer online siloxanes analysis using our atmosFIR gas analysers. This allows the real time measurement of siloxanes on plant. We can offer portable siloxanes analysers or fixed siloxane measurement systems.

Protea’s has rental analysers allowing for short-term measurement of siloxanes campaigns. This can provide a cost-effect method of siloxanes analysis over inaccurate manual methods.

The generation of electricity from municipal digesters and land fill is of increasing interest, as the biogas can allow for a form of renewable energy. Organosilicon compounds often find their way into land-fill or digester gases as siloxanes. Siloxanes are low-level hazards to the atmosphere in terms of their emissions, however when they are combusted in gas engines the hard silica that is produced is very harsh to the moving parts of the gas engine.

The full spectrum technique of FTIR also allows for the measurement of the main gas components, CH4, CO2, NH3 as well. The siloxanes present can vary from different sites, but Protea has a thorough list of analytes, including straight and cyclic siloxane compounds, and we can report individual, speciated siloxanes as well as a Total Siloxane result.

Rent a siloxanes analyser and start make siloxanes measurements today...

On-Site Siloxanes Biogas Testing

Rent or contract Protea to provide on-site siloxanes testing from your biogas or landfill process with our portable siloxanes gas analyser. Short term testing or long-term rental of analysers in possible.

Siloxanes Analysis

Siloxane Full Name Component Boiling Point - °C Mol. Wt.
Pentamethyldisiloxane PMDS 86 148.35
Hexamethyldisiloxane L2 101 162.38
Hexamethylcyclotrisiloxane D3 134 222.46
Octamethyltrisiloxane L3 153 236.53
Ocatmethylcylclotetrasiloxane D4 175-176 296.62
Decamethyltetrasiloxane L4 211 310.69
Decamethylcyclopentasiloxane D5 211 370.77
Dodecamethylpentasiloxane L5 230 384.84
Dodecamethylcyclohexasiloxane D6 245 444.93
Trimethylsilanol TMS 98-99 90.12
Methane CH4 Background Gas 16.04
Carbon Dioxide CO2 - 44.01
Hydrogen Sulphide H2 - 34.08
Ammonia NH4 - 17.03

Lower Detectable Limits (LDL) for siloxanes
Species: PDMS L2 D3 L3 D4 L4
LDL/ppm: 0.0041 0.0125 0.0145 0.0033 0.0144 0.0029
Species: D5 L5 D6 TMS
LDL/ppm: 0.0036 0.0291 0.0036 0.691

ATEX Gas Analyser

atmosFIR EX Fixed Siloxanes Analyser
Data Sheet

Siloxanes Analysis Brochure

Siloxanes Analysis

Solving the Siloxane Measurement Problem

Solving the Siloxane Measurement Problem

atmosFIRt Data Sheet

atmosFIRt Portable Siloxanes Analyser
Data Sheet