烯烃、脂环烃和芳烃的蒸发热与分子结构关系的研究  

STUDY ON CORRELATION OF LATENT HEAT OF VAPORIZATION WITH MOLECULAR STRUCTURE FOR OLEFINS,CYCLOPARAFFINS AND AROMATIC HYDROCARBONS

作　　者：章哲彦[1] 王冬杰[1] 

机构地区：[1]宁波师范学院化学系

出　　处：《石油学报（石油加工）》1993年第4期114-123,共10页Acta Petrolei Sinica(Petroleum Processing Section)

摘　　要：标准状态下烯烃、环烷烃和芳烃蒸发热的计算式可表示为:ΔH_(v,298)~0=0.43438M+∑C_(ij)+∑mG_(xj)+∑lδ_y按式计算了260多个烷烃、烯烃、环烷烃和芳烃分子的蒸发热,计算值与实验值的平均误差小于1.1%。An equation,△H_v^0,298=0.43438M+∑C_(ij)+∑mG_(xj)+∑1δ_y,is proposed for the prediction of the latent heat of vaporization for hydrocarbons under standard state,in which M is molecular weight, C_(ij),G_(xj)and δ_y are constants of a monocarbon group of saturated aliphatic carbon,a proper func- tional group and a characteristic structure in the molecule respectively,m and 1 are number of same functional group and number of same characteristic structure in the molecule respectively,subscripts x and y are the species of functional group and structure separately.The latent heat of vaporization of more than 260 hydrocarbons under standard condition are predicted.It requires only the knowledge of the structural formula of molecule.The results show good agreement between the ex- perimental data and the predicted values.

关 键 词：烯烃 脂环族烃 芳香族烃 蒸发热 

分 类 号：TQ028.61[化学工程]