TUNABLE DIODE LASER (TDL) BASED HYDROGEN CHLORIDE GAS (HCL) CONTINUOUS EMISSION MONITORING SYSTEM (CEMS) DEVELOPMENT CHALLENGES TO MEET EPA'S DRAFT PERFORMANCE SPECIFICATION

摘要

New regulations and emissions limits are requiring the measurement and reporting of Hydrogen Chloride gas (HCl) levels. Both the Utility Boiler and Portland Cement Maximum Achievable Control Technology (MACT) rules for the first time require industry wide measurements for regulatory reporting requirements. The Environmental Protection Agency (EPA) has set up an HCl monitoring Performance Specification stakeholder's group information exchange for development of the new Draft Performance Specification for HCl CEMS. This study is part of this effort. For this study, a demonstration test was conducted at a North American cement manufacturing facility that investigated the performance of Tunable Diode Laser (TDL) based HCl CEMS, as outlined in the draft performance specification. This paper presents the demonstration field setup, the tests conducted, including comparisons with reference method, and obstacles and lessons learned in completing the tests along with additional laboratory trial results.