摘要
根据化学相平衡原理、质量守恒定律和实际气体状态方程,建立了液化石油气自然气化过程气相和液相组分变化理论计算的模型,可对多组元LPG自然气化过程中各组分的变化进行准确的计算,同时可计算组分变化引起饱和蒸气压、热值、华白数和燃烧势的变化。
Because LPG generally is a multicomponent mixture of propane, propylene, butane and butylene etc, the mass ratio of each component for gas phase or liquid phase varies during the spontaneous vaporization The mass or volume fraction of each component can be determined by the empirical formula or experimental data only for two component LPG mixture of propane and butane, the variation of other LPG composed with multicomponent must be determined by chromatographic analysis In this paper a model is established to simulate the LPG component mass ratio change during the spontaneous vaporization according to the theory of chemical phase equilibrium, principle of mass conservation and equation of state of real gas Because the model is differential and algebra equations set, a difference equation set is presented Based on the solution the curves are given for the mass fraction variation of each component of any multicomponent LPG mixture in the spontaneous vaporization process and can be used to actual engineering At the same time the analyses are made on the changes of saturation pressure, Warburg's number and combustion potential of LPG caused by the mass ratio change of each component during the spontaneous vaporization
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2003年第5期480-484,共5页
Journal of Fuel Chemistry and Technology
关键词
LPG
混合物
自然气化
相平衡
导出模型
LPG
mixture
spontaneous vaporization
phase equilibrium
discharge model