Coal fired boilers were used to power the first electric lightbulbs and since that time have become the backbone of global power generation. Umicore’s DNX® HD (High Dust) catalyst can reduce harmful NOx emissions that are formed during the combustion process while keeping SO2 oxidation to a minimum. Umicore has experience with different types of coal—anthracite, bituminous, sub-bituminous, and lignite—each with its own unique challenges.
Some coal power stations are currently looking to switch to natural gas. In most cases, these emissions can be treated with a smaller volume of catalyst using DNX® LD (Low Dust) in the space allotted for air pollution control. With natural gas firing, these boilers may see a spike in carbon monoxide emissions (CO); our DNO catalyst can be used in conjunction with DNX® to treat NOx and CO simultaneously.
