A former Ethylene supplier to a petrochemical plant caused interruptions in their supply by shutting off the supply below a certain dP. The petrochemical plant chose a new supplier that installed an Emerson Coriolis meter which offered a full range of flow rates resulting in ceasing the supply interruptions and improving the uncertainty from 0.75% to 0.35%. In addition, the company did not want to have to pull the meter for proving during operations, so "Smart Meter Verification" was utilized to extend the calibration interval to coincide with plant turnarounds and to continuously monitor meter health. The meter was pulled for calibration after 2 years of service and found to have -0.06% difference from a lab prover. The solution eliminated replacement during operation, reduced proving costs, improved safety and reduced risk of lost production.
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