Demonstration of Mer-Cure Technology for Enhanced Mercury Control

Marion, John ; O' ; Neill, Dave ; Taugher, Kevin ; Kang, Shin ; Johnson, Mark ; Pargac, Gerald ; Luedecke, Jane ; Gardiner, Randy ; Silvertooth, Mike ; Hicks, Jim ; Edberg, Carl ; Cournoyer, Ray ; Bohdanowicz, Stanley ; Peterson, Ken ; Johnson, Kurt ; Benson, Steve ; Schulz, Richard ; McCollor, Don ; Wuitshick, Mike

Alstom Power Incorporated

关键词: Boilers;    01 Coal, Lignite, And Peat;    Demetallization;    Oxidation;    Mercury;   

DOI  :  10.2172/945204
RP-ID  :  None
RP-ID  :  FC26-07NT42776
RP-ID  :  945204

美国|英语

来源: UNT Digital Library

【 摘 要 】

Alstom Power Inc. has completed a DOE/NETL-sponsored program (under DOE Cooperative Agreement No. De-FC26-07NT42776) to demonstrate Mer-Cure{trademark}, one of Alstom's mercury control technologies for coal-fired boilers. The Mer-Cure{trademark}system utilizes a small amount of Mer-Clean{trademark} sorbent that is injected into the flue gas stream for oxidation and adsorption of gaseous mercury. Mer-Clean{trademark} sorbents are carbon-based and prepared with chemical additives that promote oxidation and capture of mercury. The Mer-Cure{trademark} system is unique in that the sorbent is injected into an environment where the mercury capture kinetics is accelerated. The full-scale demonstration program originally included test campaigns at two host sites: LCRA's 480-MW{sub e} Fayette Unit No.3 and Reliant Energy's 190-MW{sub e} Shawville Unit No.3. The only demonstration tests actually done were the short-term tests at LCRA due to budget constraints. This report gives a summary of the demonstration testing at Fayette Unit No.3. The goals for this Mercury Round 3 program, established by DOE/NETL under the original solicitation, were to reduce the uncontrolled mercury emissions by 90% at a cost significantly less than 50% of the previous target of $60,000/lb mercury removed. The results indicated that Mer-Cure{trademark} technology could achieve mercury removal of 90% based on uncontrolled stack emissions. The estimated costs for 90% mercury control, at a sorbent cost of $0.75 to $2.00/lb respectively, were $13,400 to $18,700/lb Hg removed. In summary, the results from demonstration testing show that the goals established by DOE/NETL were met during this test program. The goal of 90% mercury reduction was achieved. Estimated mercury removal costs were 69-78% lower than the benchmark of $60,000/lb mercury removed, significantly less than 50% of the baseline removal cost.