United Companies, an Oldcastle division that operates six hot-mix asphalt plants in Colorado, is forging new territory in plant efficiency by turning to an old, reliable fuel source — coal. Jim Bryan, ...

Operating pulverized coal-fired boilers under low-load conditions presents several challenges. This article offers tips to keep units in the best possible operating condition. In today’s energy market ...

June 4, 2003 — A new gasifier invention application has just been published at the U.S. Patent and Trademark Office (USPTO). This low-temperature (1600F) pressurized two-stage gasification process, ...

Uneven distribution of coal flow to burners can lead to higher NOx emissions and increased operating costs. A new laboratory is studying measurement instruments and control approaches to help power ...

Once pulverized coal flows have been measured, they can be balanced and optimized. Until then, tuning is simply guesswork. The right way to balance furnace fuel flows is to establish solid baseline ...