Boiler and Heater Energy Efficiency Considerations for GHG BACT

摘要

Air permit applications for large refinery projects must address Best Available Control Technology (BACT) for greenhouse gas (GHG) emissions if the project triggers Prevention of Significant Deterioration (PSD). PSD and BACT are triggered by a project if the "net" increased GHG emissions of the project are greater than 75,000 tons CChe per year. GHG emissions from combustion sources (process heaters and boilers) typically account for more than half of the GHG emissions at petroleum refineries and are a key focus of a permit applicant's GHG BACT analysis. In most instances to date, BACT for heaters and boilers has been determined to be the use of appropriate energy efficiency measures in the heater or boiler design and operation. Higher energy efficiency allows for less fuel combustion and, consequently, less GHG emissions.