Activated carbon is widely used in the landfill gas sector (LFG) for the removal of impurities (H2S, siloxanes and other VOCs) from the biogas and the protection of CHP engines, used to generate renewable energy.
Back in December 2019, we installed two of our flagship 30m3 VOCSorber® mobile carbon filters at a large LFG site here in the UK. Previously, the site had used six separate 2m3 VOCSorbers, one for each of their on-site CHP engines. The project included the design, manufacture and installation of all necessary pipework to accommodate the larger filters in a previously unused area of the site. The pipework was arranged so that the two filters could be run either in parallel, or in series (so-called ‘lead-and-lag’) offering the operator maximum flexibility in terms of usage of the carbon adsorbers.
The upgrade to larger filters benefited the site operator both financially and operationally, representing a considerable process improvement for the LFG site in terms of reduced downtime and fewer vessel changeouts. Instead of filter changeouts every 10 days or so, the switch to larger filters resulted in changeouts every 10-12 weeks. The reduced number of truck movements also represented a significant ‘CO2 footprint’ reduction, as did the use of reactivated carbon in the filters.
For assistance with any carbon filtration project, please contact Puragen, the ‘full service provider’, via this link.
