BISMARCK - Armed with gallon Ziploc bags and a pick axe, state mineral researchers are sampling North Dakota coal to make a model for finding rare earth elements in the state's coal seams. The ...

Coal is considered to be one of the most important fossil fuels. The global stone coal output in 2018 was approximately 7 billion metric tons. 1 China, USA, Russia and India mine a huge amount of the ...

Proximate analysis is a long-serving, widely used approach for determining the rank of coals. This method works by separating out inert components, volatile components and fixed carbon. The quality of ...

The first step in optimizing combustion system performance is balancing the air and fuel flowing through each of the plant’s coal pipes—the pipes that convey the air/fuel mix from the pulverizers to ...

On August 21, 2018, the Trump administration announced its plan to nullify Obama-era regulations designed to curtail greenhouse gas emissions from coal-fired power plants. The Obama rules—known as the ...

Luca Technologies, a startup based in Golden, CO, has raised $76 million to scale up a process that uses coal-digesting microorganisms to convert coal into methane. The process is designed to operate ...

Coal takes tens if not hundreds of millions of years to form; it all starts with living plants that eventually fossilize. When you purchase through links on our site, we may earn an affiliate ...

To help the struggling coal industry, President Trump used his executive authority to try to keep aging plants alive and burn more coal for electricity. By Lisa Friedman and Brad Plumer Hard hats are ...

Coal plant operators have reasonably accurate knowledge of how much coal they are burning in any individual boiler, either by testing to determine the exact unit heat rate, or measuring the rate at ...