2011-11-16 12:45:47

Qatar Petrochemical Company (QAPCO)
Advance Process Control Implementation and Optimization

ATME successfully completed the implementation of APC on Stone and Webster and Technip Licensed Ethylene plant of capacity 0.72 MM MT/yr of Ethylene Production for QAPCO in Qatar during 2011. As part of the APC solution, ATME provided the DMCplus controllers covering the 2 Ethane recovery units 13 Furnaces and 2 trains of cold sections shared by a common Quench column. Three DMCplus controllers were implemented covering the entire ethylene units. A Single DMCplus controller was implemented for the 2 ethane recovery units and for managing the ethane supply network. Another DMCplus controller was implemented for all the 13 furnaces that are of 3 types, capacities and designs from Technip/KTI and Stone and Webster. The third APC was implemented covering both the cold trains which has 13 sub-controllers. FEED-MAXIMIZER is a part of the furnace APC that maximizes the throughput subject to feed availability and cold side constraints. No "Composite" like application was used for Feed Maximizer. Furnace effluent analyzers are used for controlling the Ethane conversions. The APC solution was implemented on the Honeywell's hybrid TDC3K and Experion system using the APP Node gateway. The project was successfully implemented and managed by the ATME team.  The project was completed based on an agreed timeframe between QAPCO and ATME. Benefit was realized by the APC through better management of the Feed, improving the yield of Ethylene, reducing specific energy consumption while stably operating the plant within the operating constraints.

Technip Italy - Yansab
Yansab Olefins Plant 1 - Yanbu (K.S.A.)

ATME successfully completed the implementation of APC on Technip Licensed Ethylene plant of capacity 1.3 MM MT/yr of Ethylene and 0.35 MM MT/yr of Propylene Production for SABIC-YANSAB at Yanbu, KSA during 2011. It is a new plant where the APC project was initiated by Technip in the plant design phase. ATME provided the Functional design as phase-1 deliverables when the plant was in the construction phase. As part of the APC solution, ATME provided 13 DMCplus controllers covering all units of the hot and cold side including the Quench column and a C5+ hydrogenation unit. A FEEDMAX controller using DMCplus Composite was also implemented.  The APC controls the furnace conversion and TMT for ethane and propane feeds that are predicted by SPYRO online provided by Technip. ATME developed an all new interface for the SPYRO online for APC (i.e. SAPC DLL) from Technip by developing a wrapper in C++ for SAPC DLL that predicts the furnace conversion, TMT, effluent composition etc. This interface features a web-based GUI, provides a robust and reliable input/output data mechanism after a due validation for SAPC DLL and historizes all the SPYRO predictions. The FEEDMAX controller maximizes and manages  the feeds to the furnaces subject to feed availability and various cold side constraints. The APC solution was implemented on the Yokogawa DCS where the gateway was ExaOPC. The project was successfully completed before the deadline by the ATME project team, that was jointly project managed by ATME and Technip. Significant benefit was realized by the APC through better management of the Feed, improving the yield of Ethylene and Propylene, reducing specific energy consumption while stably operating the plant within the operating constraints.

Linde - Tasnee
Engineering and Supply of APC System for Tasnee Petrochemicals, Saudi Arabia

ATME successfully completed the implementation of APC on Linde Licensed Ethylene plant of capacity 1.0 MM MT/yr of Ethylene and 0.28 MM MT/yr of Propylene Production for TASNEE Petrochemical at Al-Jubail, KSA during 2011. It is a new plant where the APC project was initiated by Linde in the plant design phase. ATME provided the Functional design as phase-1 deliverables when the plant was in the construction phase. As part of the APC solution, ATME provided the DMCplus controllers covering the Furnaces and cold side units comprising of DePropanizer, DeEthanizer, DeMethanizer, DePropanizer, C2-Splitter, C3-Splitter and DeButanizer. A FEEDMAX controller using DMCplus Composite was provided to maximize and manage the furnace feeds subject to cold side and feed availability constraints. Inferential models were implemented to predict the conversions for Ethane and propane feeds that was developed based on simulation data provided by Linde. The APC solution was implemented on the Honeywell Experion system using redundant ACE Node gateways where the redundancy is managed by Honeywell RDM.  The project was successfully completed by the ATME project team, that was jointly project managed by ATME and Linde. The project was completed based on an agreed timeframe between TASNEE and ATME. Benefit was realized by the APC through better management of the Feed, improving the yield of Ethylene and Propylene, reducing specific energy consumption while stably operating the plant within the operating constraints.