CAJ | 학술논문

以洗油和烷烃的混合物为溶剂，采用溶剂-离心法对煤焦油沥青中的喹啉不溶物（Q I ）进行分离，考察混合溶剂芳烷比、溶剂用量、溶解温度、离心转速以及离心时间等因素对精制沥青QI含量和收率的影响。结果表明，随着芳烷比的增加，精制沥青的收率逐渐增加，Q I含量先降低后增加；随着溶剂比的增大，精制沥青的QI含量逐渐减小，收率逐渐增大；溶解温度升高有利于QI的脱除和精制沥青收率的提高；离心转速越快，离心时间越长，所得精制沥青的Q I含量和收率均越低；当芳烷比为1．2、溶剂比为2、溶解温度为80℃、离心转速为3000 r/m in、离心时间为8 m in时，精制沥青收率可达79．8％，其Q I含量低达0．18％。
이세유화완경적혼합물위용제，채용용제-리심법대매초유력청중적규람불용물（Q I ）진행분리，고찰혼합용제방완비、용제용량、용해온도、리심전속이급리심시간등인소대정제력청QI함량화수솔적영향。결과표명，수착방완비적증가，정제력청적수솔축점증가，Q I함량선강저후증가；수착용제비적증대，정제력청적QI함량축점감소，수솔축점증대；용해온도승고유리우QI적탈제화정제력청수솔적제고；리심전속월쾌，리심시간월장，소득정제력청적Q I함량화수솔균월저；당방완비위1．2、용제비위2、용해온도위80℃、리심전속위3000 r/m in、리심시간위8 m in시，정제력청수솔가체79．8％，기Q I함량저체0．18％。
The quinoline insolubles (QI) in coal tar pitch were separated and removed by solvent cen-trifugation method with mixed wash oil and alkane as the solvents .The effects of Varene/Valkane ratio , solvent dosage ,solution temperature ,centrifugal rotation speed and centrifugal time on the QI con-tent and yield of refined pitch were investigated . The results show that the yield of refined pitch increases and the QI content decreases firstly and then increases with increasing Varene /Valkane ratio .The yield of refined pitch increases and the QI content decreases with increasing solvent dosage . As the solution temperature rises ,the QI content decreases and the yield of refined pitch increases . Both the yield of refined pitch and QI content decrease with increasing centrifugal rotation speed and centrifugal time .Under the optimal conditions of Varene/Valkane ratio at 1 .2 ,msolvent/mpitch ratio at 2 ,so-lution temperature at 80 ℃ ,centrifugal rotational speed at 3000 r/min and centrifugal time at 8 min , the yield of the refined pitch can reach 79 .8% with the QI content decreasing to 0 .18% .