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The behaviours of three mineral elements (Na, Fe and Si) during coal combustion in the temperature range 400–2200 K, pressure 1×10 5 Pa, under both oxidizing and reducing conditions, have been studied in detail by a thermodynamic equilibrium analysis. The effects of atmosphere and temperature...
Since coal ash is a large portion of the bed inventory in a coal-fired circulating fluid bed (CFB) boiler furnace, the ash formation data for the feeding coal, i.e., the initial ash size distribution and the fragment and attrition rates, are of significance for predicting the material balance in...
Anthracites contain over 90% carbon, most of which is in the form of large, polycyclic aromatic sheets. The high carbon content and the highly aromatic nature give anthracites great potential for conversion to high-value carbon materials. This paper reviews previous work and summarizes the...
Sulfur-containing organic compounds, such as mercaptans, are widely distributed in petroleum. A novel refining method for the degradation of mercaptans in petroleum was put forward and investigated by means of γ-irradiation in this paper. Dodecanethiol (DCT) dissolved in dodecane was employed as...
A Pennsylvania anthracite was ground, carefully dried and hydrotreated into materials with properties resembling those of pitches. The hydrotreatment was carried out using two hydrogen donors, 9,10-dihydroanthracene (DHA) and 1,2,3,4-tetrahydronaphthalene (THN), and two catalysts, molybdenum...
The influence of nitrogen compounds on the hydrodesulfurization (HDS) activities of a series of substituted dibenzothiophenes in light cycle oil (LCO) was studied over a NiMo/Al 2 O 3 commercial catalyst. Three types of light cycle oil with nitrogen compounds of different concentrations and...
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