【摘要】 快速焦油和高温焦油用简单蒸馏或ＣＳ２抽提进行前处理，８０－２８０℃馏分分别 占焦油的４２．９％和 ２０．６％．用 ＳＰ－２３０５改制的毛细管气体色谱仪测得沸点２４５℃ 以前化合物总量分别占焦油的２４．３１％和１６．８３％，通过对比，明确了快速焦油的特 点是：（１）低沸点化合物总量高；（２）低沸点酚的含量高；（３）萘的含量少。同 时讨论了焦油中酚类、硷性组分和中性油中主要化合物含量及分布、并对主要化工产 品的产量进行了比较．揭示了它们之间的差异． 文中提出了用样量少．操作方便的煤焦油 ＣＳ２抽提－毛细管气体色谱快速分方 法，说明了本方法用于煤焦油分析时的优点．更多还原

【Abstract】 The tar of Shulan brown coal obtained from flash pyrolysis at a tempera- ture of 700℃ was investigated by using capillary gas chromatography, It was compared with that obtained by high temperature (1000℃) pyrolysis of bitumi- nous coal. Both were preliminarily treated by fractional distillation and so- lvent extraction with CS2. The part of distillate below 28℃ of the tar from Shulan brown coal and that of high temperature pyrolysis of bituminous coal amounted to 42.9% and 20.6% of the total tar respectively and distillates below 245℃ were 24.31 % and 16.83 % respectively and were analyzed chromatographically. The following peculiarities of the tar obtained from flash pyrolysis of Shulan brown coal were ascertained: (1 ) Larger amount of lower--boiling fraction; (2 )Higher content of lower phenols; and (3 ) Lower content of naphthalene. In the light of industrially important chemicals, the distribution of phen- ols and basic and neutral substances in the tars were discussed. CS2 extrdction~capillary gas chromatography a new method of analyzing coal tar with the advantages of using less sample and easy to operate was suggested. Its applicability in the analysis of coal tar was also discussed.更多还原