Download or read book Development of Advanced NO(subscript X) Control Concepts for Coal-fired Utility Boilers. Quarterly Technical Progress Report No. 4, July 1, 1991--September 30, 1991 written by and published by . This book was released on 1992 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: CombiNO(subscript x) is a NO(subscript x) reduction process which incorporates three different NO(subscript x) control technologies: reburning, selective non-catalytic reduction (SNCR), and methanol injection. Gas reburning is a widely used technology that has been proven to reduce NO(subscript x) up to 60% on full-scale applications. The specific goals of the CombiNO(subscript x) project are: 70% NO(subscript x) reduction at 20% of the cost of selective catalytic reduction; NO(subscript x) levels at the stack of 60 ppm for ozone non-attainment areas; Demonstrate coal reburning; Identify all undesirable by-products of the process and their controlling parameters; Demonstrate 95% N02 removal in a wet scrubber. Before integrating all three of CombiNO(subscript x)'s technologies into a combined process, it is imperative that the chemistry of each individual process is well understood. Pilot-scale SNCR tests and the corresponding computer modeling were studied in detail and discussed in the previous quarterly report. This quarterly report will present the results obtained during the pilot-scale advanced reburning tests performed on EER's Boiler Simulation Facility (BSF). Since methanol injection is a relatively new NO(subscript x) control technology, laboratory-scale tests were performed to better understand the conditions at which methanol is most effective. The experimental set-up and results from these tests will be discussed.