BioSpec VOC is an online monitor for Volatile Organic Compounds (VOCs) and has been designed specifically for biogas to biomethane upgrading plants. Online monitoring of VOCs enables biogas upgrading plants to improve their operational efficiency by:

» Reducing the cost of activated carbon through continuously monitoring VOC levels post-treatment to determine exactly when the activated carbon has reached saturation and hence needs replacement;

» Avoiding the risk of breakthrough of VOCs into the separation membranes and the consequent costs of their loss of efficiency and potential replacement.

The BioSpec VOC solution also enables monitoring of the raw biogas pre-treatment providing knowledge of the types of VOCs created by the plant’s input feedstocks. This enables further improvements to plant efficiency by enabling the most appropriate activated carbon to be selected for the specific VOCs seen by the plant.

VOC MONITOR FOR RAW BIOGAS AND CLEAN BIOMETHANE

Why choose BioSpec VOC?

» Reduce operational costs for activated carbon » Safeguard membrane performance and maximise membrane service lifetime

» Reduce overall biomethane production costs and avoid costly plant shutdowns

» Return on investment typically less than one year

BioSpec VOC Technology

» Optical spectroscopy: accurate and repeatable » Low maintenance: no future recalibration required » No calibration or carrier gas consumables needed » Easy to use without expert knowledge » Measures VOCs in raw biogas and clean biomethane

Typical Applications

» Bio-waste treatment plants » Agricultural plants with bio-waste as co-digestate » Biogas upgrading at wastewater treatment plants

Total KetonesAcetone2-Butanone (MEK)

Total Terpenes3-Carenealpha-Pinenebeta-PineneLimonenep-Cymene

Hydrogen Sulphide (H2S)Ammonia (NH3)XylenesDimethyl SulphideCarbon Disulphide

CONTACT USPlease contact us if you would like more information

ADDRESS | Headquarters Camlin Group 31 Ferguson Drive Lisburn, BT28 2EX Northern Ireland

TELEPHONE | +44 (0)28 9262 6989

EMAIL | mail@camlingroup.com

WEB | www.camlingroup.com

Whilst every effort has been made to ensure that the information given is accurate, Camlin reserve the right to change any of the details or specifications in this document without prior notice and disclaims liability for any editorial, pictorial or typographical errors.

Optical Absorption SpectroscopyBioSpec VOC uses a differential optical absorption spectroscopy technique to measure individual VOCs in gas mixtures. Every VOC component has its own unique spectral fingerprint and through optical spectroscopy we can determine the type and concentration of each VOC in the gas sample in a single measurement.

MEASURED GASES

The main components individually measured and reported by the BioSpec VOC system at sub-ppmv levels are listed below. Total ketones and total terpenes are also reported.

Ultraviolet (UV) light shines through a sample of gas and individual components will preferentially absorb certain wavelengths of the UV light. A spectrometer separates the transmitted light into individual wavelengths and the UV-spectrum of the gas mixture is obtained. This spectrum is analysed through sophisticated data analysis techniques and individual gas components and their concentrations are extracted and reported.

MULTI-POINT SAMPLINGThe device facilitates multi-point sampling such that a single device can be used to measure before and after treatment and between different stages in the upgrading plant. The system can be configured to utilise up to eight sampling points with valves controlled either directly through the device or by the customer’s own systems.

ONLINE MEASUREMENTThe measurement period is typically a few minutes per sample point and the BioSpec VOC system is commonly utilised for hourly measurement; however, sampling frequency is fully configurable.

BioSpec VOC can also operate in manual single measurement mode. For example, this facilitates the user measuring individual samples from Tedlar bags allowing for spot-checks to be carried out.

CUSTOMER FOCUS As well as the technical innovations, Camlin have a flexible and innovative commercial approach giving both purchase and rental options with tailored service and support contracts. We partner with our customers to ensure that our technical and commercial offering is fully aligned to our customer needs.