The CEMS will use Emerson's custom-designed Rosemount Analytical MLT infra-red gas analysers, capable of continuously measuring up to five components in a single analyser.
The MLT gas analysers combine application-specific sensors, digital signal processing and software technologies in custom configured systems to satisfy single or multi-component analysis requirements, using a combination of non-dispersive infrared (NDIR), ultraviolet (UV), and/or visible (VIS) spectroscopy and electrochemical or paramagnetic oxygen sensors.
The Rosemount devices were recently certified by MCERTS, a joint monitoring certification scheme between the UK Environmental Agency, the SIRA Certification Service (formerly the British Scientific Instrument Research Association) and the UK Accreditation Service.
The customised systems for the Coryton refinery will be designed and constructed at Emerson's plant in Wessling, Germany.
The components measured in Continuous Emissions Monitoring systems are carbon monoxide, carbon dioxide, oxides of nitrogen (NOx), sulphur dioxide and oxygen.
The Coryton Refinery claims its current carbon dioxide and nitrogen emission levels are already well below the acceptable limits defined by the UK Environmental Agency, which receives monthly reports on the site from BP Amoco.
EPM's CEMS will significantly enhance the validity and comprehensiveness of emissions data collected at the site.
