不同溶剂下煤直接液化初级产物的物性  

PROPERTIES OF COAL LIQUEFACTION INITIAL PRODUCTS PRODUCED BY DIFFERENT SOLVENT

作　　者：曹雪萍[1] 单贤根[1] 王洪学[1] 高山松[1] 姜元博[1] 

机构地区：[1]中国神华煤制油化工有限公司上海研究院,煤炭直接液化国家工程实验室,上海博士工程师201108

出　　处：《煤炭转化》2016年第1期44-48,共5页Coal Conversion

基　　金：神华集团科技创新项目(SHJT-2012-12)

摘　　要：研究两种不同溶剂条件下,煤直接液化初级产品的物理化学特性,通过实沸点蒸馏装置,将样品油进行了实沸点切割,得到17个窄馏分,并考察了各窄馏分的密度、相对分子质量、元素组成及临界性质.结果表明,两种煤液化粗油馏分组成差别不大,得到的相应粗油窄馏分的密度、元素组成和相对分子质量等相差也较小.加氢后的循环溶剂条件下,煤液化粗油S和N元素含量较低;最后采用经验关联式对两种煤液化粗油窄馏分的假临界性质进行了计算.结果显示,两种油的假临界性质差别不大,且随切割馏程升高假临界温度和假临界体积逐渐增大,窄馏分的假临界压力逐渐减小.To study the properties of two direct coal derived liquefaction initial product,the true boiling point（TBP）curve and 17 narrow fractions were obtained using the TBP distillation apparatus,and density,recative molecular mass,elemental composition and the critical property of narrow fractions were investigated.The results showed that the difference between fractional compositions of two coal derived liquefaction initial product is small.Meanwhile,the differences between relative molecular mass,density,and elemental composition of narrow fractions in two samples are both small.At last,the critical properties of two products calculated by Riazi-Daubert method are similar,and showed the same trend that the critical temperature and critical volume increased and the critical pressure decreased with cut temperature.

关 键 词：煤液化 溶剂 窄馏分 物性分析 

分 类 号：TQ529.1[化学工程—煤化学工程]