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Case Study: Mirus Lineator Installation at Natural Gas Sweetening Plant

From Mirus International, Inc.
 

 

A natural gas processing and transportation company, located in British Columbia, Canada, had commissioned the installation of 8 Motor Control Centers (MCC's), each exclusively loaded with adjustable frequency drives, for an upgrade at one of their natural gas sweetening plants. Since the plant power supply is entirely fed by on-site turbine generators, the heavy concentration of drives raised significant concern about harmonics and their effect on power quality.

To process sour natural gas for safe transport, poisonous hydrogen sulfide (H2S) must be removed. The process trains at the plant use an aqueous amine solution to absorb the H2S. The liquid requires a carefully controlled temperature, which is regulated with cooling fans. The MCC's each contained seven 480V adjustable frequency drives (1x40hp, 4x50hp, 2x60hp), running a configuration of fans to control temperature in the amine trains.

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Topics of Interest
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