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  H2S Multiphase Corrosion Flow Loop
  Inclinable Three-Phase Corrosion Flow Rig
  Wet Gas Corrosion Flow Loops

  Transparent Multiphase Corrosion Flow Loops
  Glass Cells

  Naphthenic Acid Corrosion

 
 

Wet Gas Corrosion Flow Loop #1

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Full View Test Section Blower Gas/Liquid Separator
Operational Conditions
Gas Velocity 1 to 20 m/s
Partial pressure of Carbon Dioxide 1 to 8 bar
Temperature range 40C to 90C
Condensation rate 0.02 to 3 ml/m2/s
Gas Mixtures Various mixtures of Nitrogen, Carbon Dioxide


The Wet Gas Corrosion Flow Loop is designed to study the effect of operating parameters on the corrosion of carbon steel under dewing condition during the transportation of wet gas. Several corrosive gases such as CO2 and HAc are under investigation. This loop also provides a mean to quantify the efficiency of volatile inhibitors.

This closed system is comprised of 4" diameter, Sch 40, Stainless steel 316 for resistance to corrosion. It is 30 meters long, horizontally leveled, and it is fully insulated from the ambiant. The tank used for liquid storage contains 1m3 of water. The concentration of acid present in the water is controlled by injection. Heat is added to the system using resistance-heaters (Inconel 625), which are immersed in the tank. The power available is 90kW. A blower provides gas velocities up to 20 m/s. A system of cooling coils is used for the cooling of the gaseous phase, allowing condensation to occur. A gas/liquid separator is used also to catch any liquid carry-over before the test section. The test section provides 4 ports, 2 at the top of the line and 2 at the bottom of the line, which are available for the measurement of the corrosion rate by insertion of flush-mounted corrosion monitoring probes.

Instrumentation

The temperature is controlled by a Proportional Integrator Differential (P.I.D) regulator (+/- 1C). Monitoring of the temperature occurs in the gas phase all around the 30-meter-long loop, between the inlet and the outlet of the heat exchangers (both in the gas phase and in the cooling liquid), and at the wall temperature (by a thermocouple installed in the head of a flush-mounted probe). The pressure in the tank is controlled (+/- 0.1 psi). The volume of condensed water is measured after being separated from the gas phase. Ceion Technology (E.R. probes) is presently used to measure the corrosion rate in low conductivity-discontinuous condensed water

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Wet Gas Corrosion Flow Loop #2

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Full View Tank and Blower Test Section Gas Flow Meter
Operational Conditions
Gas Velocity 1 to 12 m/s
Partial pressure of Carbon Dioxide 1 to 7 bar
Temperature range 40C to 80C
Condensation rate 0.02 to 3 ml/m2/s
Gas Mixtures Various mixtures of Nitrogen, Carbon Dioxide


The Wet Gas Corrosion Flow Loop #2 is designed to study the effect of operating parameters on the corrosion of carbon steel under dewing condition during the transportation of wet gas. Several corrosive gases such as CO2 and HAc are under investigation. This loop also provides a mean to quantify the efficiency of volatile inhibitors.

This closed system is comprised of 4" diameter, Sch 40, Stainless steel 316 for resistance to corrosion. It is 25 meters long, horizontally leveled, and it is fully insulated from the ambiant. The tank used for liquid storage contains 1m3 of water. The concentration of acid present in the water is controlled by injection. Heat is added to the system using resistance-heaters, which are immersed in the tank. The power available is 11kW. A blower provides gas velocities up to 12 m/s. A system of cooling coils is used for the cooling of the gaseous phase, allowing condensation to occur. The test section provides 8 ports, 4 at the top of the line and 4 at the bottom of the line, which are available for the measurement of the corrosion rate by insertion of flush-mounted corrosion monitoring probes.

Instrumentation

The temperature is controlled by a Proportional Integrator Differential (P.I.D) regulator (+/- 1C). Monitoring of the temperature occurs in the gas phase all around the 25-meter-long loop, between the inlet and the outlet of the heat exchangers (both in the gas phase and in the cooling liquid), and at the wall temperature (by a thermocouple installed in the head of a flush-mounted probe). Moreover, a system of thermistors is installed at the test section in order to monitor the temperature of the gas, the inner wall and the outer wall (+/- 0.1C). The pressure in the tank is controlled (+/- 0.1 psi). A gas flow meter is installed in line and is used to monitor and control the gas velocity. The volume of condensed water is measured after being separated from the gas phase. Ceion Technology (E.R. probes) is presently used to measure the corrosion rate in low conductivity-discontinuous condensed water.

 

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Ohio University
Russ College of Engineering
Department of Chemical Engineering
Institute for Corrosion

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