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IRPC-HDPEReinstrumentation Project at HDPE Plant to Replace Legacy Pneumatic Instruments and PLCs with Integrated CENTUM CS 3000 and ProSafe-RSExecutive SummaryIntegrated Refinery and Petrochemical Complex Public Co., Ltd. (IRPC) in Rayong, Thailand has a refinery (215,000 B/D) as well as several petrochemical plants that produce chemicals such as olefins (360,000 t/y) and aromatics that are used as feedstock at various types of plastics plants. One of these facilities, a 152,000 t/y high density polyethylene (HDPE) plant, relied principally on legacy pneumatic instruments and a PLC based safety system. (Some of the pneumatic instruments had been replaced with single loop controllers.) Due to high maintenance costs and the need for higher efficiency and productivity, IRPC decided to revamp its plants by installing new control systems and instrumentation based on the latest technologies.Through the course of this project, Yokogawa Thailand successfully installed a fully integrated CENTUM CS 3000 production control system (PCS) and ProSafe-RS safety instrumented system (SIS) together with a plant information management system (PIMS) and an asset management system (PRM).Customer SatisfactionPhadet Prarom, PD11 Division Manager, said, “We are now very comfortable operating the HDPE plant and are experiencing no major problems with Yokogawa’s systems. Yokogawa’s systems and products are highly reliable.” He went on to say, ”We actually reduced the number of operators after introducing the PCS. The integrated production control system is functioning well. We are proud of our new control room, the brain of a VigilantPlant.”Plant InformationLocation: Rayong, ThailandOrder date:December 2005Completion:December 2006Chemical (Base Chemical, Fertilizer, Petrochemical)21Success Story Collection

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