Gasoline blending in the oil & gas industry

High accuracy flow measurement

Gasoline blending is a refinery operation that blends different component streams into the various grades of gasoline required in the final products. The two properties of major importance are the octane number (indicating how much compression the fuel can withstand before self-igniting) and the Reid Vapour Pressure or RVP (indicating the volatility of the product). The RVP may vary between seasons, as the products will be less volatile in winter, when it is colder.

Requirements

  • Control of the tank farm
  • Inventory measurement

Requirements

  • Risk of overfill or dry run
  • Ensure continuous supply of refined product

Requirements

  • Maintain mass balance
  • Process control for optimal blending
  • Avoid products being off specification

Requirements

  • Risk of overfill or dry run
  • Ensure continuous supply of additives
  • Inventory measurement

Requirements

  • Injection of additives in end product
  • Indication of the flow of additives
  • Ensure continuous injection

Requirements

  • Setting and measuring of the sample flow
  • Monitoring of minimum throughput
  • Probability of obstruction of the pipeline

Requirements

  • High accuracy measurement of valuable products
  • Need for diagnostics to ensure measurement accuracy

Requirements

  • Maintenance of the non-explosive atmosphere
  • Low flows with mostly low pressures
  • Monitoring of minimum throughput

Requirements

  • High sensitivity monitoring of transmission pipelines
  • Batch tracking, scheduling and monitoring of pipeline tightness and lifetime stress
  • Retrofit onto existing pipelines or tailor-made technical solutions

Requirements

  • Visualisation and monitoring of critical processes
  • Control of reporting, trends and alarm handling
  • Statistical evaluation of measurement data

Requirements

  • Integration of flow computers, PLCs, supervisory computers and printers
  • Installation of single flow computers up to fully redundant cabinet
  • Complying with custody transfer requirements

Requirements

  • Fully certified according to local and international metrology requirements
  • Lowest possible measurement uncertainty
  • High reliability and low maintenance

Requirements

  • High-accuracy measurement of volume and quality of refined products
  • Traceable to international standards
  • Complying with custody transfer requirements
  • Master/duty configuration with flowmeter diagnostics
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