Gas

Utility power plants are now extending plant life by converting from coal to gas to meet carbon reduction and other emissions targets. Similarly, process plants, such as steelworks, sugar processing plants and refineries are upgrading their firing equipment with ultra low emission, multi-fuel burners to increase resilience and deliver cleaner, more flexible energy.

Utility power plants

As coal-fired generators begin their transition to low-to-net zero generation, RJM is supporting them with a highly cost-effective coal-to-gas conversion solution, which reduces emissions, extends plant life and increases MWe output.

 

Today, RJM is carrying out coal-to-gas conversions in Spain and the USA. Learn more about some of our gas-fired projects: Essent Energie and Abono.

Video shows Abono power station firing gas, following RJM’s coal-to-gas conversion upgrade.

Process plants

RJM has responded to growing demand for ultra-low emission burners by developing a new type of gas burner that can be sized to suit many different industrial applications, from factories with an on-site demand for heat and power, to district heating plants producing hot water.

For every application, RJM works with the customer to provide a tailored solution that will meet the requirements of the plant.

For example, building in back-up resilience via multi-fuel firing options, including Heavy Fuel Oil, diesel, and, where possible, off-gases produced on-site, plus future-proofing by making sure the unit is “hydrogen-ready” are just some of the options RJM is making available to plant operators.

Typically, coal and Heavy Fuel Oil firing systems are being replaced by natural gas as the primary fuel.

However, adapting an existing plant by disabling or removing old firing systems and replacing them with a new set of multi-fuel, ultra-low NOx gas burners can be a challenge, as new firing technology needs to be shoe-horned in and around existing equipment.

It also needs to deliver ultra-low NOx performance reliably, even though the existing boiler was not designed to fire gas.

RJM is very experienced at carrying out these plant upgrades and in each case, designs a purpose-built solution that is specifically configured to work within the existing physical parameters of the plant.

By carrying out in-depth site surveys and combustion audits as a first stage, followed by detailed single burner and then full furnace CFD analysis, RJM can develop a fully-engineered solution that will work as intended from Day 1.

District heating plant in Beijing; RJM ultra-low NOx CleanAir Burner firing gas.

Recent installations include six district heating plants mainly in Beijing, where  RJM installed 35 new ultra-low NOx CleanAir Burners™, consistently delivering NOx of <15ppm, replacing less efficient and more polluting firing systems.

RJM has also installed its new ultra-low NOx CleanAir Burners™ at three sugar processing plants and a paper mill in Spain. In each case, the primary objective was to reduce emissions of NOx when firing natural gas. Typical post-upgrade NOx and CO emissions are <100mg/Nm3.

In terms of future-proofing, these RJM burners have also been designed to have the capability to fire other fuels, including hydrogen.

Today, RJM is working on other new gas burner upgrade projects at various industrial sites in Europe, Turkey and the USA.

Key features of the RJM Ultra-Low NOx CleanAir Burner

  • Innovative technology
  • 20 MWth – 70 MWth
  • High quality manufacture
  • Robust and durable design
  • No refractory or tile
  • Maintenance-free design
  • NOx emissions 30mg/Nm3 @ 3% O₂
  • Low CO emissions
  • FGR capable
  • Compact highly stable flames
  • Independent pilot flame monitoring
  • Retrofit or new boilers
  • Design flexibility to suit all boilers
  • Simple, modular design

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