Petroleum Processing and Petrochemicals ›› 2015, Vol. 46 ›› Issue (11): 42-45.

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ADDITION OF VAPOR PHASE SIDE-DRAW PIPE IN XYLENE TOWER TO REDUCE END POINT OF NAPHTHA FRACTION OF CONTINOUS CATALYTIC REFORMING

  

  • Received:2015-04-16 Revised:2015-05-30 Online:2015-11-12 Published:2015-10-27

Abstract: The end point of C9+ distillates at the xylene tower bottom of the1800k/a continuous catalytic reforming unit in SINOPEC Qingdao Petrochemical Company was about 250 ℃, resulting in overstandard end point of naphtha. To solve the problems, a vapor-phase stream side-draw pipe was added to the xylene tower. The vapor-phase stream was used as a fraction of gasoline blending component directly. The bottom fraction of the tower was used as a fraction of the diesel oil blending. The results indicate that the measures can effectively remove the heavy components in C9+ fraction and reduce the end point of the naphtha.