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ENV-16-29 Cost of Complying with the Flare Monitoring Requirements under the New Refinery RTR Rule

Jon Morris, Providence Photonics

Format:
Electronic (digital download/no shipping)

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

Description:

Industrial flares are used for safety and emissions control. When a flare performs as designed, the chemical compounds in the vent gas stream sent to the flare are combusted and the combustion products, mainly carbon dioxide (CO2) and water, are safely released into the atmosphere. Measuring or monitoring combustion efficiency (CE) or destruction efficiency (DE) of an industrial flare is the ideal method to assess flare performance; however, directly monitoring flare CE is very challenging because the combustion occurs in the open air. The current practice is to monitor surrogate parameters, such as vent gas net heating value (NHVvg) and flare tip exit velocity (Vtip). When the surrogate parameters are within certain limits (e.g., Vtip < 60 feet per second and NHVvg ≥ 300 British thermal units per standard cubic feet, or Btu/scf), the flare CE or DE is deemed to be in the acceptable range (typically 96.5% for CE and 98% for DE). Recent studies have found that the flare CE or DE under certain operating conditions may not be as high as previously assumed even when the surrogate parameters meet the criteria (Allen and Torres, 2011). It would be highly desirable if flare CE or DE could be directly monitored. A method for directly monitoring flare CE has been proposed (Zeng, et. al, 2016).

Product Details:

Product ID: ENV-16-29
Publication Year: 2016