Pasadena refinery has initial success with on-site amine-purification system

The AmiPur system at the Crown Central Petroleum Corp. refinery sits with the caustic tank. The blue cylinder is the regenerant reservoir. The resin column sits behind the control panel (Fig. 1). The Crown Central Petroleum Corp., Pasadena, Tex., refinery successfully commissioned an ion-exchange unit for its amine gas-treating plant in October. The refinery's amine system absorbs hydrogen sulfide from sulfur-containing streams. High heat-stable salt (HSS) concentrations in amine solution contribute to corrosion and foaming. High levels of HSSs increase the need for corrosion-related maintenance and filter replacements. Eventually, HSSs are removed by either d...

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