Start-up procedure for a residual oil processing unit

Details Start-up procedure for a residual oil processing unit Start-up procedure for a residual oil processing unit

C - Chemistry, Metallurgy

10

G

196/71

C10G 47/00 (2006.01) C10G 49/24 (2006.01)

Patent

CA 1069453

START-UP PROCEDURE FOR A RESIDUAL OIL PROCESSING UNIT ABSTRACT OF THE DISCLOSURE In starting up an upflow, ebullated bed hydroprocessing reactor, a light oil is used, to establish an ebullating bed. As heavy residual feedstock is incrementally substituted, the ebullating pump speed and gas flow rate need to be monitored and adjusted for smooth operation. By knowing and controlling the viscosity and density of the feestock, flow variations inside the reactor can be minimized, resulting in a constant pump speed and gas flow rate.

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