Delayed coking process for producing free-flowing coke in essence of a deep cut vacuum residual oil

摘要

A delayed coking process comprising: - preparing a residual oil vacuum and combined with a recycle stream distillate; - conducting said mixture to a heating zone where it is heated to a temperature effective coking; and - driving said heated from said heating zone to a coking zone wherein the vapor products are collected from the top and with which coke is formed with a reduced incidence of the heated drums and a nature mixture relatively free flowing wherein the residual oil vacuum is less than 10 wt% material boiling at 900 to 1040ºF (482,22ºC 560 ° C) measured by HTSD (Simulated Distillation High Temperature) and the recycle stream distillate has an boiling range within the range of 450ºF to 750ºF (232,22ºC to 398,89ºC) and is in the range of 0-7 percent by volume.