Research on the Improvement of the Flow Performance of Inner Mongolia High Temperature Coal Tar

• 1、Chemical Engineering and Energy School,Zhengzhou University,450001

Abstract：To improve the poor fludity of hightemperature coal tar in Inner Mongolia(IMHTCT).Firstly,the basic properties were analyzed using elemental analysis and XRD determination in this paper . The results demonstrated that the viscosity of raw materialswas relatively large and had nothing to do with the wax crystallization. Furthermore, the effect of temperature on viscosity of IMHTCT and medium temperature coal tar in Inner Mongolia(IMMTCT) was respectively discussed . The results indicated that IMMTCT had a good flow performance and the viscosity declined to 510 mPa•s,when the temperature was 30℃.Howerever, IMHTCT could achieve the same viscosity,when the temperature was 50℃. Therefore,the method of adding organic additives was employed to improve the flow performance of IMHTCT,which was respectively added to five organic additives - toluene, oleic acid, stearic acid, ethanol and tetrahydrofuran.The results declared that IMHTCT viscosity declined significantly with the increasing of the propotion of five additives .Among them,the viscosity- reducing ratio of oleic acid was always superior to others,which indicated that oleic acid had the best viscosity-reducing effect on IMHTCT.

Keywords： chemical engeneering hightemperature coal tar fludity additive viscosity-reducing effect