Browse by category Quicklinks

Selected Case Study

SCR Technology for UK Airport
Found under
Silencers, Indu...

IMSeco designed and manufactured a range of “SCRT” (SCR+DPF) systems which was shipped to the UK in the UK during the first quarter of 2019 for compliance with DEFRA’s MCPD (Medium Combustion Plant Directive) which was transposed into UK Law as from January 2018.

The new directive sets emissions limits for NOx of 190mg/Nm3 (15% O2) for Diesel Powered Generation Equipment with thermal ratings between 1 and 50MWth which are being introduced dependent on engine size between Jan 2019 and Dec 2029.

Although not required under the directive, the client decided to include “Diesel Particulate Filters (DPF)” within the design to “Future-Proof” any potential future legislation.

The first “SCRT” system which was for the Volvo Penta TAD532GE (4.76Ltr/129kw) engine incorporated 3 x DPF and 3 x SCR+ASC Modules in a fully stainless-steel reactor.

To ensure the DPF is always kept clean, IMSeco incorporated an Active Hydrocarbon (HC) injection system that vaporises tiny droplets of fuel over the DOC (Diesel Oxidation Catalyst).

The SCR (NOx Abatement) system utilises an “Air-Less AdBlue Injector with Pump” that delivers the AdBlue from a small on-board tank. Once injected the AdBlue decomposes into Ammonia and gets dispersed through Mixing Pipe embedded within a lower chamber.

The “Closed Loop” system comes with an array of pressure, temperature and NOx sensors and an Electronic Control Unit that controls the AdBlue Dosing and measure the NOx reductions being achieved in Real Time.    

A nice feature about the design is that Inlet and Outlet Pipework can be positioned on either side, plus it has a removable lid which allows the substrates to be retracted easily for maintenance.

For more information on this project, or if you have a requirement, please mail us today at


+44 (0)1509 506792
IMS, Units 18-20 Gelders Halls Road, Shepshed, Leicestershire, LE12 9NH
View in Google Maps

Other Case Studies from this Company

Targeted Frequency Acoustic Project Targeted Frequency Acoustic Project
We recently completed this stunning acoustic project based at a utility company in the UK. Our ch...
SCR System for a Hospital in London SCR System for a Hospital in London
After creating the SCR system bespoke, our expert installation team began installing the SCR syst...
Bespoke Chimney & Pipework Project Bespoke Chimney & Pipework Project
We designed, manufactured, delivered & site supervised this chimney & pipework project in...
SCR Technology for Police Vessel SCR Technology for Police Vessel
  IMS supplied its “Modular Reactor” in conjunction with the “Detronic&rd...
6 SCR Systems for Overseas Client 6 SCR Systems for Overseas Client
IMS designed and supplied six SCR systems for an overseas client in 2017. The emissions target w...
 SCR Technology for University College London SCR Technology for University College London
IMS were awarded a contract in 2016 for the Design, Manufacture and Supply of an SCR Reactor comb...
Full Acoustic Project at UK Hospital Full Acoustic Project at UK Hospital
IMS have just completed on this epic acoustic project at Northampton General Hospital. Our remit ...
Exhaust Silencers Exhaust Silencers
The New Doha International Airport in Qatar is (NDIA) using Eight 36" nominal bore reactive / abs...