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LESSONS LEARNED FROM THE INTEGRATION OF LABORATORY INFORMATION SYSTEMS WITH FUELS BLENDING CONTROLS

Rick Harris, Aspen Technology, Inc

Format:
Electronic (digital download/no shipping)

Associate Member, International Member, Petrochemical Member, Refining Member - $0.00
Government, NonMember - $25.00

Description:

Aspen Technology and Petrobras formed a team that implemented a tank farm automation and blending system at the Paulinia (REPLAN) and Henrique Lage (REVAP) Petrobras refineries. At one refinery, the system was a traditional inline blending operation producing gasoline; in the second, it was a rundown diesel blender. The scope of the project included order management, oil movement and blending execution (equipment sequencing), blend header quality control and optimization. The system also included interfaces to existing laboratory and refinery information systems. Accurate and timely laboratory data was crucial in achieving full project benefits. Integration of the lab information management (LIM) system with the tank farm automation system meant that key component, header, and product tank quality data was available to both operations personnel and key applications as soon as it was “published.” Lab data is important for the controller gain calculations, optimizer predictions, analyzer validation and finished product tank heel properties. Anticipated benefits that arise from use of error-free, timely data, include the following: • Integration of a laboratory information management (LIM) system reduces errors caused by manual entry of data. • Timely component property data improves accuracy of controller gains, which improves controller performance. This is especially critical for rundown blenders. • Component property data is used by the blend models to validate header analyzer values. • Timely product tank property data improves optimizer performance. • Improved real-time, model-based, estimates of tank qualities that are used by yield accounting and data reconciliation applications. • Integration of a LIM system allows lab data to be automatically stored in the blending system database. For product tank properties, this allows for comparison of estimated values with the final lab values – a process that is useful for blend model validation. This paper will discuss implementation of the project, the benefits achieved to date, and the lessons learned from it.

Product Details:

Product ID: AM-03-117
Publication Year: 2003