Coal is a prime energy source in India and will continue to play its role for coming several decades. However, our indigenous coal suffers from high ash content and present coal based conventional power generation technologies have several drawbacks such as, lower efficiency, environmental loading and damages thereof. Herein the importance of gasification lies because coal gasification is a mea...

With the increase of social demand on environmental quality, the clean coal technology (CCT) is one of the most effective measures for environmental control. It is an important means in CCT to decrease the gangue content. Targeting at distinguishing the top-coal and gangue, this paper discussed coalgangue interface detection on fully mechanised mining face. The Hilbert marginal spectrum based o...

Reductions in the cost of technologies as a result of learning-by-doing, R&D investments and other factors have been observed over many decades. This study uses historical experience curves as the basis for estimating future cost trends in CO2 capture technologies applied to four types of electric power systems: pulverized coal (PC) and natural gas combined cycle (NGCC) plants with postcombusti...

Clean Carbon Cycle In article number 2100217, Andrea Fratalocchi and co-workers present a green energy transition that the clean coal desalination technology could open. This help phase out coal-powered plants, reduce thousands of tonnes CO2 every hour, open to new circular economy for global access sanitation freshwater production.

— Modern engineered materials, components and systems depend on raw materials whose properties provide essential functionality to these technologies. Some of these raw materials are subject to supply-chain risks, and such materials are known as critical materials. This paper reviews corporate, national and world perspectives on material criticality. It then narrows its focus to studies that ass...

In recent years, China has experienced severe air pollution with adverse health consequences, as exemplified by recent reports of extremely high PM2.5 levels in northern cities such as Beijing. PM2.5 sample measurements have identified coal burning as a significant primary pollutant source in China, especially when coal is used as a major heating fuel in the winter. As urbanization and househol...