Hydrodesulfurization pressure control

Mineral oils: processes and products – Refining – Sulfur removal

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208 79, 208DIG1, 364500, 364510, 364550, C10G 4500

Patent

active

048971812

ABSTRACT:
The pressure of a source of hydrogen-rich gas, which is generated at an elevated pressure as a by-product in a reforming process, is controlled by manipulating two vent valves so as to permit maximum utilization of the hydrogen-rich gas in a hydrodesulfuration process which consumes hydrogen in its operation. Control action to maintain the pressure of the source of hydrogen-rich gas requires that hydrogen-rich gas generated in the reforming process, which must be vented to reduce pressure, is vented through a hydrodesulfurization reactor in ample quantity for operation of the hydrodesulfurization reaction, and only that amount of hydrogen-rich gas which cannot be utilized in the hydrodesulfurization reactor is vented directly from the source of hydrogen-rich gas.

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