Coal ash is the main waste from power plant. It is estimated that the consumption of the coal for power plant will increase to 240 million tons each year and the coal ash wastes will produce more than 2 million tons per year. Although the utilization of coal fly ash can be reached 74.1%, large amount of coal fly ash and bottom ash still cannot be utilized. The purpose of this research is to dev...

An improved flexible solar-aided power generation system (SAPG) for enhancing both selective catalytic reduction (SCR) de-NOx efficiency and coal-based energy efficiency of coal-fired power plants is proposed. In the proposed concept, the solar energy injection point is changed for different power plant loads, bringing about different benefits for coal-fired power generation. For partial/low lo...

This study is part of the Coal Quality project, and involves washability characteristics of British Columbia coals. The first two parts of the project involved collection and analysis of washability data from assessment reports (Holuszko and Grievr:, 1990; Holusrko, 199 I ). The washability characteristics of coals from different regions, geological ftwmations and seams were studied wing classi...

Section III of the text discusses the method we use to calculate a coal price index. Here we report the regression results for each region (see Table A.1). We also show the national average for comparison. While the type of coal a power plant purchases may change in response to natural gas prices, we are concerned that the heterogeneity in coal transactions within a plant may also reflect noise...

The effective production of high-quality anthracite has attracted increasing global attention. Based on the coal occurrence in Yongxia Mining Area and mining conditions of a coalface in Xinqiao Coal Mine, we proposed a systematic study on the technical support for the production of high-quality anthracite. Six key steps were explored, including coal falling at the coalface, transport, undergrou...

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,...