Patent ID: 8864951
Filing Date: 2014-10-21
Classification: B01D,C10G

Abstract:
1. A process for improving quality and yield of one or more distillate products generated in a distillation column, the distillation column comprising a feed zone, a wash zone located above the feed zone, and a fractionation zone located above the wash zone, the wash zone having disposed therein a liquid/vapor contacting structure and a wash oil distributor for distributing wash oil to the contacting structure, the process comprising: feeding a fluid feed stream comprising both liquid and vapor phases tangentially or radially to the distillation column; providing a tangential entry feed distributor or a radial entry feed distributor within the distillation column, the tangential entry feed distributor and/or the radial entry feed distributor is free of any surface transverse to a flow path of the feed stream in order to reduce atomization of liquid in the feed stream; collecting slop wax falling from the contacting structure using a wash zone collection apparatus disposed in the wash zone; recirculating a portion of the slop wax to the wash oil distributor for distribution as the wash oil to the contacting structure; and producing a distillate product by condensation and collection of the vapor above the wash zone,