OCR Text |
Show Auxiliary Power Waste Disposal Catalyst Replacement Filter Bag Replacement Baghouse O&M Cost Factors Figure 7. Breakdown of SNRB Levelized Costs The design of the 5 MW e facility and the associated test plan were therefore tailored to address the sorbent cost issue. In addition, another testing program, utilizing the SNRB laboratory pilot baghouse, has been developed to assess alternative filter bag fabrics. TECHNOLOGY DEMONSTRATION The commercial readiness of the SNRB technology is being evaluated through the design, construction, and operation of a 5 MW e field demonstration facility currently under construction at Ohio Edison's R. E. Burger station. A public dedication ceremony was held at the R. E. Burger plant on May 9,1991, and B&W Construction Company's work on the 5 MW e facility has proceeded on schedule since that time. Testing on the unit will begin in January, 1992, and continue through August of that year. The overall goal of the 5 MW e tests is to develop the design, operating, and performance information needed by B&W to commercialize the SNRB technology. The specific objective of the field demonstration tests is to optimize the S02, NOx and particulate removal efficiencies during long-term operation on fully integrated, commercial-size components. A test plan has been developed to facilitate an evaluation of the of key operating parameters on 5°2, NOx and particulate removal performance. Several alternative hydrated lime sorbents, in addition to commercial hydrated lime, will be evaluated for 502 removal. Capital Cost Factors (Shaded) Filter Bags Catalyst 8 Indirect Costs Fixed O&M Ammonia 50250rbent The cost effectiveness of the SNRB technology and the impacts of the process on plant equipment and operation will be evaluated. The SNRB demonstration facility will allow evaluation of issues which could not be adequately addressed at the laboratory pilot scale, including: • Performance of the fully-integrated system on a long-term basis • Predictive performance curves for commercial applications • Control philosophy for response to boiler load changes and upsets • Pressure drop across the SNRB baghouse modules and bag cleaning procedures required to provide reliable long -term operation • Catalyst deactivation (catalyst life) • Operating costs for the system The findings of the SNRB 5 MW e field demonstration will be detailed in a final report. The field demonstration will also result in a detailed economic and technical feasibility analysis of the technology. the design specifications required for a commercial-scale system. and a SNRB process control philosophy. Features or the 5 MWe Facility The SNRB field demonstration facility draws a 5 MW e (equivalent) flue gas slip stream from Boiler No.8 of |