Patent ID: 7127959

Claim:
An apparatus for simulating corrosion activity due to reactive sulfur compounds and/or naphthenic acid in a refinery process unit having a liquid and vapor/condensate corrosion petroleum enviromnent comprising: a) a container, including a lower region containing a liquid including said reactive sulfur compounds and/or naphthenic acid to simulate a refinery process unit liquid corrosion petroleum environment, and an upper region, including a condenser to simulate a refinery process unit vapor/condensate corrosion petroleum environment, b) a heater for providing heat to said lower region such that said liquid is maintained at a given temperature, c) a vacuum pump for providing a partial vacuum at a given pressure in said upper region of said container, d) one corrosion probe removably positioned in said liquid entirely in said liquid corrosion petroleum environment, and e) a second corrosion probe removably positioned entirely above said liquid in said vapor/condensate corrosion petroleum environment.