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. Please contact us here: https://www.protea.ltd.uk/rental
| 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 |
atmosFIR EX Fixed Siloxanes Analyser
Data Sheet
Siloxanes Analysis
Brochure
Solving the Siloxane Measurement Problem
atmosFIRt Portable Siloxanes Analyser
Data Sheet