Topic
Coal combustion products
About: Coal combustion products is a research topic. Over the lifetime, 8623 publications have been published within this topic receiving 163116 citations.
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TL;DR: The thermal characteristics and kinetics of coal, biomass and their blends were evaluated under combustion conditions using a non-isothermal thermogravimetric method (TGA) and showed that the chemical first order reaction is the most effective mechanism for the first step of biomass oxidation and for coal combustion.
464 citations
TL;DR: In this paper, a brief review of the coal gasification with CO2 as a diluent is presented, where coal rank, pressure, temperature, gas composition, catalyst and the minerals present inside the coal, heating rate, particle size, and diverse reactor types.
451 citations
TL;DR: The modes of occurrence of potentially hazardous elements in coal will be of significance in any attempt to reduce their mobilization due to coal combustion as mentioned in this paper, and it is anticipated that less than 50% of these elements will be routinely removed by conventional coal cleaning procedures.
436 citations
TL;DR: In this paper, the results of preferential adsorption of CO2 were observed with two of these zeolites at 120 °C, up to a pressure of 300 ps...
Abstract: Pressure swing adsorption (PSA) and temperature swing adsorption (TSA) are potential techniques for removing carbon dioxide (CO2) from high-pressure fuel gas streams. Zeolites are suitable candidate sorbents for use in these processes; however, the systems would be even more energy efficient if the sorbents were operational at moderate or high temperatures, especially for the removal of CO2 from high-pressure gas streams, such as those from integrated gasification combined-cycle (IGCC) systems. Competitive gas adsorption tests with gas mixtures representing both coal combustion and coal gasification gas streams were conducted in an atmospheric flow reactor with five zeolites at 120 °C. Promising results of preferential adsorption of CO2 were observed with two of these zeolites. However, the CO2 adsorption capacity was significantly lower at 120 °C than at ambient temperature. Volumetric gas adsorption tests of CO2 and nitrogen (N2) on these two zeolites were conducted at 120 °C, up to a pressure of 300 ps...
430 citations
TL;DR: Although particulate matter emissions from industrial and residential combustion were different in many regards, picene was detected in all samples with detectable OC mass concentrations, which supports the use of this organic tracer for OC from all types of coal combustion.
Abstract: Particulate matter emissions from a series of different Chinese coal combustion systems were collected and analyzed for elemental and organic carbon (EC, OC), and molecular markers. Emissions from both industrial boilers and residential stoves were investigated. The coal used in this study included anthracite, bituminite, and brown coal, as well as commonly used coal briquettes produced in China for residential coal combustion. Results show significant differences in the contribution of carbonaceous species to particulate mass emissions. Industrial boilers had much higher burn out of carbon yielding particulate matter emissions with much lower levels of OC, EC, and speciated organic compounds, while residential stoves had significantly higher emissions of carbonaceous particulate matter with emission rates of approximately 100 times higher than that of industrial boilers. Quantified organic compounds emitted from industrial boilers were dominated by oxygenated compounds, of which 46−68% were organic acids...
423 citations