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Coriolis Flowmeters An Italian Refinery Uses Emerson’s Micro Motion Coriolis Flowmeters for Fiscal Measurement

| Editor: Dr. Jörg Kempf

Oil and gas producers, processors and shippers need to accurately measure product flowing into and out of their operations. These measurements are critical because they have a direct impact on profitability. Under-measure and you could be giving away valuable product. Over-measure and you may short-change your customers, damaging your reputation. There may also be tax or accounting implications for improper or inaccurate measurement.

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In order to upgrade fiscal measurements at their Falconara Marittima refinery on Italy’s Adriatic coast, API installed an Emerson Process Management metering system based on Coriolis mass flow measurement. (Picture: Emerson)
In order to upgrade fiscal measurements at their Falconara Marittima refinery on Italy’s Adriatic coast, API installed an Emerson Process Management metering system based on Coriolis mass flow measurement. (Picture: Emerson)

Because of this, measuring mass flow to obtain accurate results in fiscal metering applications is becoming more common. This is especially true for applications involving large quantities, such as the loading and unloading of road tankers and ships. Companies are adopting innovative metering solutions that not only help ensure accuracy, consistency and reliability, but also are fully compliant with current legislation.

To upgrade fiscal measurements at its Falconara Marittima refinery on Italy’s Adriatic coast, API SpA installed an Emerson Process Management metering system based on Coriolis mass flow measurement. The installation has greatly increased the fiscal metering accuracy at the tanker terminals, as well as improving the operation’s overall equipment effectiveness (OEE).

Measuring Level is Not Enough

The sea tanker loading terminal at the refinery discharges hydrocarbons from large storage tanks to waiting tankers. Quantities were previously calculated by using the latest level measurement technology to monitor tank levels. However, API calculated the average error at 0.5 percent — a figure deemed to be unacceptable given that it directly affected both taxes paid and profit margin.

API therefore asked Emerson Process Management to provide a turnkey metering solution that would increase the accuracy of fiscal measurement at the tanker terminal. Emerson provided a metering skid based on Micro Motion Coriolis mass flow meters. The skid was provided complete, requiring only that API construct a base and connect the inlet and outlet manifolds. Emerson provided the design paperwork and certification, plus technical support through every phase of the project. Emerson liaised directly with the Italian government’s Metric Office, who verified that the measurement accuracy complied with the relevant legislation.

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