Selective catalytic reduction (SCR) for NO x removal from utility boilers has been shown to have extremely high removal efficiencies. In recent years, there has been increased focus on a potentially ...

SCRs (silicon-controlled rectifiers), or thyristors, have higher current and voltage ratings, lower conduction losses, and more robustness than triacs. For these reasons, SCRs are better suited to ...

Commercially available technologies for reducing nitrogen oxide (NO x) emissions from coal-fired boilers are enabling industry compliance with today’s regulatory requirements. Low-NO x burners (LNB) ...

SCR speed controllers that supply 180Vdc motors from 240Vac mains are wonderfully robust, but have the drawback that they always present fast-rising voltage edges to the motor’s armature at a 100Hz ...

This standard will address the control functions associated with the selective catalytic reduction systems on fossil fired steam boilers greater than 200,000 lbs/hr and combustion turbines greater ...

Clean Diesel Technologies, a provider of clean energy and environmental technologies to reduce engine emissions, recently announced that it has signed a binding contract for a worldwide nonexclusive ...