Enabling more efficient biogas upgrading

In today’s low carbon world, biogas presents a compelling alternative to natural gas

Fast growing market demand for renewable energy sources and incentives to generate biogas from waste has put suppliers and operators of biogas upgrading plants under increasing pressure to accept a diverse range of feedstocks.  This leads to unpredictable levels of volatile organic compounds (VOCs) in the gas that can significantly impact the efficiency and uptime of the plant.  Where biomethane is being injected to the gas grid the commercial penalties and risks can be severe if purity levels are not consistently met.

Advanced, real-time online VOC monitoring

BioSpec VOC accurately monitors individual ketones and terpenes as well as hydrogen sulphide, ammonia and other components. This gives operators a clear, accurate and real-time picture of the removal of the VOCs from the biogas and enables the upgrading plant to be managed more efficiently. Advanced optical absorption spectroscopy technology is used to analyse all the individual VOC components in a single measurement.

Reduced operating costs

BioSpec VOC reduces the operational cost of activated carbon filters, safeguards separation membranes and reduces the total cost of upgrading biogas to biomethane.

Maximise Uptime

Monitoring of the VOCs enables plant uptime to be increased and grid supply obligations to be met.

No Recalibration

The device does not require any further recalibration in the field during its lifetime, eliminating the need for calibration gases to be held onsite.

Multiple Sample Points

Measurement at multiple sample points allows for analysis of the biogas before, during and after the upgrading process with a single solution.

Success Story

Access this extract from success stories published by the European Biogas Association to read how BioSpec VOC has delivered real value to biogas upgrading operations (note: BioSpec VOC is supplied to and marketed by Pentair under the BioSENSE brand name).

The innovative choice for biogas upgrading plants

Significantly more reliable and cost-effective than conventional Gas Chromatography (GC) instruments, BioSpec VOC has been designed specifically for the purpose of VOC monitoring in biogas upgrading plants. It is straightforward for OEM upgrading plant suppliers to integrate the solution into their specific systems. This enables a more holistic solution to be offered and sustainable profits delivered to plant owners.

Flexible Installation

BioSpec VOC can be installed in new plants and retrofitted into existing installations.

Easy Integration

Concentrations, trends and alerts on VOC content is easily integrated into operating systems.

Simple Operation

No specialist expertise is necessary to operate the device.


Minimal Maintenance

Low maintenance, no recalibration and no costly consumables required.