The preparation and application of ultra-clean coal is one the important aspects clean energy technology. However, mainly chemical methods, which are low in efficiency, high consumption expensive. It urgent to find an effective method prepare coal. In this paper, combined grinding collector gasification flotation was used obtain effects time on particle size composition, mineral dissociation, s...

We track multiple human subjects using ultra-wide band (UWB) radar based on their target signatures. To resolve the correspondence problem, the use of CLEAN algorithm is proposed. Walking two human subjects are measured by UWB radar. The feasibility of classification is investigated using the suggested method.

Coal bed methane (CBM) in the coal seam is the hydrocarbon gas that mainly component methane and adsorbed on coal surface. Some Coal bed methane (CBM) free in the coal pore or dissolved in water. Coal bed methane (CBM) was emerging in nearly one hundred and twenty years of high quality clean energy. This paper is mainly introduce the characteristic of coal seam and it’s differences between home...

With the reduction of natural gas and petroleum sources and subsequent increases in their costs, energy from coal is becoming increasingly popular. However, coal is not a clean technology, so with this demand comes a demand to make this energy source more environmentally friendly. Trace elements, such as mercury, arsenic, and selenium, are highly volatile and are known to escape into the atmosp...

Until recently, it was conventional wisdom that ‘clean coal’ meant abandoning high sulfur coal resources, reducing plant efficiencies and increasing costs. ZECA Corporation is developing a new ‘Zero Emission’ technology that was invented at Los Alamos National Laboratory. It may stand this preconceived notion on its head. The ZECA Technology has the potential to readily accept high sulfur coal,...

The Clean Coal Technology (CCT) Demonstration Program is a government and industry co-funded effort to demonstrate a new generation of innovative coal utilization processes in a series of facilities built across the country. These projects are carried out on a commercial scale to prove technical feasibility and provide the information required for future commercial applications. The goal of the...

The Clean Air Act of 1990 initiated a tradable permit program for emissions of sulfur dioxide from coal-fired power plants. One effect of this policy was a large increase in the consumption of low-sulfur bituminous coal by coal-fired power plants. However, lowsulfur bituminous coal is also the ideal coking coal for steel production. The analysis presented here will attempt to determine how the ...