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AM-10-137 Real-time Compliance Flare Emissions Monitoring and Reporting

Richard Hovan, Rockwell Software, Austin, TX

Format:
Electronic (digital download/no shipping)

Associate Member, International Member, Petrochemical Member, Refining Member - $0.00
Government, NonMember - $35.00

Description:

Real-time flare emissions monitoring and reporting must include input data qualification, substitution, limit testing, alerts, annotations and auditing, and data visualization and reports. Calculating and storing emissions data rolled up to hourly, daily, year-to-date and/or 12-month rolling totals is crucial to eco-friendly operations. Equally important is the ability to identify “flaring events” in real-time and to calculate event-based metrics such as start and end timestamps, speciated and total emissions, and excess emissions. Calculation of Flare Emissions based on Measured or Estimated Flare Gas Composition under US EPA rules must be operated within certain limits: minimum heating value of the flare gas and maximum tip exit velocity. In some cases, maximum tip exit velocity is calculated as a function of the net heat content of the flare gas: the higher heat content, the higher the allowable exit velocity. The rules for heat content and exit velocity differ for different types of flares (steam- or air-assisted vs. non-assisted). Calculation of Flare Emissions Based on Emission Factors using AP-42 provides the following emission factors for flares: total hydrocarbons, carbon monoxide, nitrous oxides and soot. The AP-42 emission factors are in units of lb/MMBtu. Heat flow rate must be in MMBtu/hr to calculate mass emissions and can be determined by calorimeter and flow meter, composition analysis and flow meter, process knowledge and vent valve position, etc.

Product Details:

Product ID: AM-10-137
Publication Year: 2010