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Ten Power Generators Will Purchase 50 Percent of the Mercury Reduction Products and Services In 2016
Mercury reduction is being accomplished by the addition of activated carbon, bromine or other chemicals. With the new air toxic rules requiring U.S. power plants to meet levels as low as 3 µg/m3 sales of these chemicals will be substantial. Worldwide sales for chemicals to reduce mercury will exceed $1 billion. The electricity generator (EG) expenditures will be over $800 million. Just ten EGs will spend an average of $40 million each and will account for over 40 percent of world purchases. Thirty-two EGs will account for 75 percent of the purchases by EGs and 60 percent of the total mercury reduction expenditures.
Revision Date: 11/2/2015
Tags: McIlvaine, Mercury, Mercury Removal
Highlights of hot topic hour on activated carbon, bromine and other technologies for reducing mercury from combustion sources.
Revision Date: 8/20/2015
Tags: McIlvaine, Mercury Removal, Emissions Reduction
Mercury Removal Options Webinar - Hot Topic Hour July 23, 2015
A high level discussion of new developments over the last few months and updating of a Route Map and Summary of the issues and options. There is a program based on parametric testing resulting in the best choices for mercury reduction.
Revision Date: 7/23/2015
Tags: 221112 - Fossil Fuel 化石燃料, Mercury, Mercury Removal
Calcium Bromide Liquid: Safety and Handling Guide GeoBrom® HG520
Calcium Bromide Liquid: Safety and Handling Guide
Revision Date: 7/20/2015
Tags: 221112 - Fossil Fuel 化石燃料, Great Lakes Solutions, Chemtura, Chemical, Mercury, Bromine, Safety, Mercury Removal, Corrosion
Corrosion Studies on GeoBrom® HG520 Vapor Space Study
A 90-day vapor space corrosion rate study was conducted using GeoBrom® HG520 calcium bromide solution and six selected metals at 20° and 50° C. ASTM Method “Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens” G1 - 03 (reapproved 2011) was used to prepare, clean, and evaluate tests specimens.
Revision Date: 7/20/2015
Tags: 221112 - Fossil Fuel 化石燃料, Chemtura, Great Lakes Solutions, Mercury, Chemical, Bromine, Mercury Removal, Corrosion
Corrosion Studies on GeoBrom® HG520 Total Immersion Study
A 90-day, total-immersion corrosion rate study was conducted using GeoBrom® HG520 calcium bromide solution and six selected metals at 20° and 50° C. ASTM Method “Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens” G1 - 03 (reapproved 2011) was used to prepare, clean, and evaluate tests specimens.
Revision Date: 7/20/2015
Tags: 221112 - Fossil Fuel 化石燃料, Great Lakes Solutions, Chemtura, Chemical, Mercury, Bromine, Mercury Removal, Corrosion
Corrosion Studies on GeoBrom® HG520 Partial Immersion Study
Brominated derivative products for mercury control… There was little to no corrosion observed on these coupons in the vapor space. Visually, all corrosion occurred in the liquid phase where half of the coupons were suspended. There was no increase in corrosion rate observed at vapor / liquid interface on any of the specimens. Based on this 90 day study, all specimens were less than 0.70 mpy corrosion rate with half the coupon below surface. Mild carbon steel (C-1018) gave the highest corrosion rate at 0.14 mpy at 20° C and 0.65 mpy at 50° C. All remaining specimens were under 0.10 mpy. ICP analysis of GeoBrom® HG520 samples refl ect elevated iron and chromium levels at end of the 90-day period. The maximum allowable corrosion rate for each specimen with GeoBrom® HG520 depends on the application.
Revision Date: 7/20/2015
Tags: 221112 - Fossil Fuel 化石燃料, Great Lakes Solutions, Chemtura, Bromine, Corrosion, Chemicals, Mercury, Mercury Removal, Corrosion
B&W Mitagent improves halogen use to oxidize mercury (EUEC 2015)
Summary: *Mitagent reduces injection cost for Iodine by 30‐50% while providing same 90+% Hg oxidation levels * Mitagent further improves Hg oxidation by 20‐30% for low Bromine application rates (25 ppm or less) * Mitagent reduces application rates by 30‐50% for high Bromine addition rates (>100 ppm), and therefore associated corrosion risks * Mitagent use results in significant operating cost reduction by reducing halogen usage * On going long‐term testing indicates no negative effect on boiler or AQCS performance
Revision Date: 2/25/2015
Tags: 221118 - Other Electric Power , Babcock & Wilcox, Bromide, Halogen, Mercury, Chemicals, Mercury Removal
Successful mercury reduction in pilot study at Seminole (Golder presentation at EUEC)
Summary: Pilot testing successfully reduced effluent Mercury concentrations to < 225 ng/l. Pilot influent concentrations were lower than historical maximums. Pilot test process reduced effluent Mercury to < 40 ng/l after flocculation and settling unit operations were improved. Results obtained in October 2014 (higher effluent Mercury) need further review (ratio of organosulfide:ferric iron may be a key). Substantial colloidal fraction of Mercury was present. Effective chemical addition, flocculation and settling are necessary so that sand filters (current Seminole polishing process) can be utilized. Tighter membrane filtration might be needed.
Revision Date: 2/25/2015
Tags: Golder Associates, Sulfide, Wastewater, Mercury, Mercury Removal
MATS Compliance Choices Webinar - Hot Topic Hour January 29, 2015
Speakers at the Hot Topic Hour provided recent data which shows that improved activated carbon and absorbents will allow plants to meet MATS emission limits with lower amounts of consumables.
Revision Date: 1/29/2015
Tags: 221112 - Fossil Fuel 化石燃料, Lhoist, McIlvaine, Calgon Carbon, KC Cottrell, Activated Carbon, Dry Sorbent Injection, Precipitator, Fabric Filter, MATS, Mercury Removal, HCl, SO2, Particulate
MATS Agenda by Bob McIlvaine, McIlvaine Company - Hot Topic Hour January 29, 2015
Bob provided an overview of the whole MATS decision making process using the GdPS™ Concept.
Revision Date: 1/29/2015
Tags: 221112 - Fossil Fuel 化石燃料, McIlvaine, Activated Carbon, Dry Sorbent Injection, Precipitator, Fabric Filter, MATS, Particulate, SO2, HCl, Mercury Removal
Martin O'Brien addressed three problems which have been solved with unique activated carbon designs.
Revision Date: 1/29/2015
Tags: 221112 - Fossil Fuel 化石燃料, Calgon Carbon, Activated Carbon, MATS, Mercury Removal
Information regarding Mercury Abatement, FGD Liquors and Dissolved Metals Concentrations in FGD Wastewater. There is a big difference in selenium and mercury concentration in the scrubbing liquor which has to be process rather than fuel related.
Revision Date: 4/10/2014
Tags: 221112 - Fossil Fuel 化石燃料, Allen Analytics, Mercury, Mercury Removal
Treatment Chemical Case Studies by Bruce Keiser, Nalco. - Hot Topic Hour April 10, 2014
Nalco offers chemicals to solve the mercury emission problem for coal-fired boilers. One chemical is designed to inject in the boiler, another is injected in the scrubber and a third in the wastewater. The chemical quantities can be varied in order to compensate for process variables. For example the SCR does a better job of oxidizing mercury when the catalyst is new than later in the campaign. As the oxidation potential deteriorates the quantity of chemicals can be increased.
Revision Date: 4/9/2014
Tags: 221112 - Fossil Fuel 化石燃料, Nalco, Mercury, Chemical, Mercury Removal
CBI is continuing to optimize its mercury reduction technology and is validating the cost effectiveness of a new re-emissions treatment chemical - Redox.
Revision Date: 4/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, CB&I, Mercury, Bromine, Chemical, Mercury Removal
Bromine can accumulate in the scrubber recycle. Confirmation of the accumulation was determined in a study at Lower Colorado River Authority (LCRA). John Grocki advised the attendees that there are big variations even between units at the same plant. There is a range of concentrations which can be of concern. Bromine and Chlorine cannot be treated the same and the combination has a different impact than either one independently. So whether there will be corrosion and which material is best to protect against it is based on the concentrations of both halogens. In addition to the scrubber itself, the injection of halogens in the fuel can have impacts on the air heater and ductwork.
Revision Date: 4/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, URS Corp., Mercury, Bromine, Corrosion, Mercury Removal
Chemtura can supply bromine as calcium bromide or in many other forms. The company works with clients from inception through continuing operational support. Setting up calcium bromide systems is relatively easy but there is no reason to over-design and invest more than necessary or to under-design and create operational problems. Chemtura is conducting tests which show the impact of bromine in the gas and scrubbing liquor on the materials with which it may come in contact. The quantity of bromine added can vary to compensate for changes in the process e.g., changes in fuels or deterioration of the catalyst. Since activated carbon is quite expensive it makes sense to utilize bromine with the fuel to supplement the carbon under upset conditions.
Revision Date: 4/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, Chemtura, Mercury, Bromine, Chemical, Corrosion, Mercury Removal
This scrubber additive prevents re-emissions and creates solids which are easily separated from the FGD wastewater. GRE is successfully operating a system with this chemical at its Bismarck, ND plant. Addition of CaBr in the scrubber improves overall efficiency.
Revision Date: 4/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, Great River Energy, Mercury, Chemical, Mercury, Wastewater Treatment, Re-Emission, Mercury Removal
HClear™ can be injected in the duct ahead of the particulate device and removes HCl without removing SO2. It is not a sodium product and does not impact ash sales. Very high removal rates are achieved at less than 25 lbsHClear/ton of coal. There is significant value in decreasing scrubber corrosion and wastewater treatment costs.
Revision Date: 4/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, Fuel Tech, Sorbent, Mercury, HCl, Mercury Removal
Straightening the flow at KCP&L LaCygne Unit 1 has provided uniform flow in the SCR hood to prevent flyash accumulation. This results in reduced catalyst replacement costs and reduced vacuum removal costs for deposits, according to Reid Thomas.
Revision Date: 4/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, Fuel Tech, Mercury, Chemical, SCR, Mercury Removal
The kaolin-based sorbent is readily available and cost effective.
Revision Date: 4/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, BASF, Mercury, Sorbent, Mercury Removal