Ever-stringent environmental constraints dictate that future coal cleaning technologies be compatible with micron-size particles. For super-clean coal production, the degree of liberation needed to separate coal from mineral matter, including pyrite, requires grinding to 10 μm or below. In addition, large amounts of fine coal are discharged to refuse ponds because current coal cleaning technolo...

Coal-…red power plants may enjoy a signi…cant advantage relative to gas plants in terms of cheaper fuel cost. Still, this advantage may erode or even turn into disadvantage depending on CO2 emission allowance price. This price will presumably rise in both the Kyoto Protocol commitment period (2008-2012) and the …rst post-Kyoto years. Thus, in a carbonconstrained environment, coal plants face …n...

Coal offers an abundant widely spread fossil energy resource. It is available at a quite stable price from many international suppliers and it will continue to play a significant role in new generating capacity, if security and diversity of supply remain fundamental. In this paper we point out the state of the art in the field of “Clean Coal Technologies” evidencing the perspectives of improvem...

This paper presents an analysis of the reduction in S02 emissions by electric utilities between 1985 and 1993. We find that emissions have been reduced for reasons largely unrelated to the emission reduction mandate incorporated in Title IV of the 1990 Clean Air Act Amendments. The principal reason appears to be the change in the economics of coal choice that has resulted from the remarkable de...

In order to reduce SO2 emissions to less than 2.5 lbs/mBtu as mandated by the Clean Air Act Amendment (CAAA) of 1990, power companies mainly using higher sulfur content coal as fuel supplies have to find their alternatives to reduce SO2 emissions. The purpose of the study is to assess the extent of economies of scale in coal delivery. The network of coal flow consists of production sites, consu...

Coal based power plant emitted pollution is responsible for environmental burden of disease (EBD) from solid fuel use (SFU) like combustion of coal or biomass. Environmental pollution due to operation of thermal power plants is also one of the factors for acute lower respiratory infection (ALRI), chronic obstructive pulmonary disease (COPD), lung cancer (from exposure to coal smoke), asthma, tu...

and ECA coal analysers have been used to control sorting and blending operations at coal mines, power plants and coal terminals. In sorting operations, the analyser results are used to sort coal into piles, bins or silos based on the measured quality. Coals can be sorted by the ash, sulphur, moisture, heating value, or by combinations of these. Sorting can be used to allow low-ash coals to bypa...