Integrated CENTUM VP and ProSafe-RS Systems Ensure Nonstop Operation of ADU/DKU Processes

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Executive Summary

IRPC-ADU/DKU, Rayong, Thailand
Integrated CENTUM VP and ProSafe-RS
Systems Ensure Nonstop Operation of
ADU/DKU Processes

Integrated Refinery & Petrochemical Complex Public Co., Ltd. (IRPC) is an integrated producer of petrochemical products. Its complex consists of an upstream oil refinery and a downstream petrochemical plant. The oil refinery has a total capacity of 215,000 barrels per day, accounting for 21% of the country's total refining capacity.

Without the products from the refinery's atmospheric distillation unit (ADU) and diesel kerosene unit (DKU), operations at IRPC's downstream petrochemical plant would come to a halt. It is therefore absolutely essential for these units to operate nonstop, 24/7/365, with no unscheduled shutdowns.

The ADU and DKU each had a legacy production control system (PCS), with the former relying on a system from ABB and the latter using a Rosemount RS3 PCS. Both of these control systems could be operated from the same control room. The safety system was an A&B PLC.

Due to part supply difficulties and the discontinuance of vendor support, IRPC decided to replace these legacy systems with the latest systems technology. For this revamping project, Yokogawa Thailand successfully integrated the CENTUM VP PCS with the ProSafe-RS safety instrumented system (SIS), Plant Resource Manager (PRM) asset management package, and Exaplog event analysis package. In the control room, two large screens now display the status of processes throughout the plants and key process control trend data. The central control room is quiet and well managed.

Somnuk Boonprasert, IRPC's instrument supervisor, in the central

Somnuk Boonprasert, IRPC's instrument supervisor, in the central

The Challenges and the Solutions

Challenge 1: Application of new technology to improve efficiency
There were two different production control systems side by side in one control room. Procedures for operating them were different, they did not use the same reporting format, and the engineering was also different. With CENTUM VP's new ergonomically designed human machine interface (HMI), information access became quicker and more intuitive, with operators being able to see lots of different process information at a glance and handle any situation seamlessly. By improving operator efficiency, it became possible to reduce the number of control room personnel.

Challenge 2: Nonstop and safe operationThe nonstop supply of products from the ADU and DKU processes to the downstream plant was essential, so unscheduled shutdowns needed to be eliminated. As the CENTUM VP and ProSafe-RS systems each have processor cards with dual redundant CPUs, they achieve high availability and are highly reliable. Since the installation of these integrated control systems, operations have been able to continue nonstop with no major failures to the present day.

The integration of ProSafe-RS with CENTUM VP makes it possible to monitor all instrument blocks from the CENTUM VP HMI. The operation procedures for ADU and DKU are all the same now, eliminating operator confusion and bringing a higher level of safety.

If a problem occurs with the ProSafe-RS system, a sequence of event recorder (SOER) function that captures and stores time-stamped event data makes it possible to analyze what happened and make improvements to the plant operations.

CENTUM field control station (FCS)

CENTUM
field control station (FCS)

ProSafe-RS safety controller

ProSafe-RS
safety controller

Rack room: clean and neat

Rack room: clean and neat

Customer Satisfaction

Mr. Somnuk said, "We are happy using Yokogawa's systems because we have not had any major problems with them. The plant is easier to operate with the new CENTUM VP HMI." He continued by saying, "This is a real VigilantPlant! We will continue to improve our production efficiency"

行业

相关产品&解决方案

CENTUM VP

CENTUM VP有一个简单而通用的结构,包括人机界面、现场控制站和控制网络。

SIS (SIL3认证) ProSafe-RS

ProSafe-RS是获得德国认证机构(TÜV)认证的安全仪表系统,符合IEC 61508中指定的安全完整性等级(SIL)3。它已经在2400多个项目中安装使用,涵盖从大型集成过程自动化项目到独立解决方案等多种项目类型。

安全仪表系统(SIS)

安全仪表系统(SIS)保护人员、环境和资产。横河的安全管理系统及相关安全解决方案被广泛应用于紧急停机、消防、燃气和燃烧器管理及HIPPS系统中。

集散控制系统(DCS)

横河电机的集散控制系统(DCS)使工业过程实现了自动化控制,并增强了业务性能。超过10000家工厂采用横河DCS来实现他们的生产目标。

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