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首页> 美国政府科技报告 >Vapor-Pressure Data for Potassium- and Sulfur-Containing Species in a Slag-Free Open-Cycle MHD System
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Vapor-Pressure Data for Potassium- and Sulfur-Containing Species in a Slag-Free Open-Cycle MHD System

机译：无渣开放式mHD系统中含钾和含硫物种的蒸气压数据

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Computer modeling studies have been carried out to enable prediction of the vapor pressures for the major potassium- and sulfur-containing species expected to be encountered in the downstream section of an open-cycle magnetohydrodynamic system. The calculations assume the formation of ideal solutions for the condensed species. The calculations were done for ash-free IL No. 6 coal and cover seeding levels of 10 and 15 wt % K sub 2 CO sub 3 for temperatures of 1000 to 2000 K, air-to-coal stoichiometric ratios (SR) of 0.85 to 1.1, and pressure of one atmosphere. The results indicate that for both seeding levels the concentration of potassium-containing gas species decreases in the order SR = 0.85, 1.0, and 1.1 and that at SR = 0.85 the predominant potassium containing species is K sub 2 S, whereas at SR = 1.1 it is K sub 2 SO sub 4 . The total vapor pressure data for the potassium- and sulfur-containing species are given as functions of temperature and stoichiometric ratio. (ERA citation 08:041312)

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