Advanced Process Control (APC)

• A phased upgrade approach from CENTUM CS to CENTUM VP was planned to meet tight LNG carriers schedules.
• The collaboration using CENTUM VP and APC provides optimization of gas liquefaction operation.

• This is the first project in which Shell Global Solutions US has used a contractor outside of Shell for its Advanced Process Control implementation
• The post implementation study shows that the overall Delayed Coker APC controller returns a benefit which is almost three times the original promise.

• To decrease downtime and maintenance costs, the decision was made to introduce Yokogawa's CENTUM DCS.
• With well-experienced MAC approach, Yokogawa replaced successfully legacy DCS.

Samsung Petrochemical Co. Ltd. (SPCL), a major Korean petrochemical company, produces 700,000 tons per year of purified terephthalic acid (PTA) at its Daesan plant. PTA, a white powder substance that is produced by oxidizing and refining para-xylene, is a precursor to polyethylene terephthalate (PET), a polyester material that has excellent thermal resistance and wear resistance and is widely used as a substitute for natural cotton fibers and in film packaging, beverage bottles, tire cords, paints, adhesives, and other applications.

• HMEL selected an integrated solution from Yokogawa
• Yokogawa India oversaw and implemented the engineering, installation, and commissioning of the refinery

• Based on a careful review of all operational procedures and operator roles and configured new SOPs in Exapilot.
• As a result, SFC has been able to reduce operator workload, improve product quality, and reduce production losses.

• At the company's Ulsan resin plant, six Exaquantum servers were connected to CENTUM CS 3000 and other vendor's systems.
• KKPC needed to expand its SBC capabilities and improve production efficiency at its plants.

A Malaysian Gas Processing and Transmission Company a subsidiary of the national oil & gas major, plays a prominent role in the gas business value chain. The company operates as a throughput service company providing the services of processing and transmission of gas to the power generation sectors and various customers. 

• Implementation of multivariable optimizing controllers and robust quality estimators within a record short period
• 3% rise expected in CCR feed amount

PT. Tanjung Enim Lestari Pulp and Paper (PT. TEL) operates a pulp mill in Muara Enim, which is 130 km west of Palembang, the capital of Indonesia's South Sumatra province. This is the only pulp mill in the world to produce high-quality, bleached-hardwood kraft pulp solely from plantation grown Acacia mangium trees.

• The Advanced Process Control application on the GOHT unit helped control the plant with less variation during Coker drum switch and with less operator interactions and minimized giveaway.
• A post-implementation study estimated that the overall GOHT Unit APC controller returns a savings about 198% greater than the originally estimated.

• The Advanced Process Control application implemented on the Scotford MEG unit helped control the plant with less variation, resulting in maximized TEG production and reductions in overall steam consumption.
• TEG production increases were greater than originally estimated and the prices for steam and TEG used in the post-implementation study were reduced significantly.

Achieving autonomous operations is primarily about empowering the plant to run, learn, adapt and thrive in tomorrow’s environment—whatever that environment might be. Download this whitepaper to learn the steps in the journey to autonomous operations.