ENG029 Current-Potential Characteristics of Electrolysis Cell Used for Crude Oil Refining: Design Consideration

Abstract

In this work, the current-potential characteristics of the electrolysis cell and their effects on the refining level of crude oil were presented and discussed. At low voltages, very little refining occurs. As the potential increases, refining activity ramps up significantly in the active region. Beyond a certain point (around 3 V), the curve levels off, indicating limited gains in refining due to side reactions or inefficiencies. Low current (0–2 A): Minimal refining occurs; insufficient ion/electron flow. Threshold region (2–5 A): Refining starts becoming noticeable. Active region (5–8 A): Significant refining takes place. Plateau (>8 A): Efficiency gains level off; excess current may cause unwanted side effects like heating or secondary reactions.