Mercury Options are Expanding - Hot Topic Hour July 31, 2008
More than three hours of high level discussions were generated yesterday with the input of eight speakers.
Biographies and pictures are shown at http://www.mcilvainecompany.com/utilityalert/subscriber/UtilityE-Alert/2008/Bios, photos - Hot Topic Hour July 31, 2008.htm
Rob Nebergall showed pictures of the new multiple hearth furnace that will be needed for the supply of carbon required for the 47 sites which have been contracted. This is about half the total power plant contracts according to Rob’s estimates. Progress is being made on a carbon with higher resistivity that would improve capture in the electrostatic precipitators.
Bernard Vosteen showed current results which show that bromine additives can help wet scrubbers achieve very high mercury removal.
Dale Nickels provided the cost benefits of treating the used pulverized activated carbon (PAC) to recover the mercury and allow the recycling of the sorbent.
Folke Friesen says there are substantial advantages in adding activated carbon in the sump of the scrubber. Mercury re-emission is prevented. Also the mercury-laden carbon can be separated from both the gypsum and the sludge.
Bill Byers assured the participants that commercialization of the carbon alternative is imminent, with financing and production slated.
Sid Nelson advised the group that with the expanded might of Albemarle as the parent company (see previous article in this E-Alert) PAC capacity is 30 million lbs/yr and another 50 million lbs/yr expected by next year.
Anne Minga related experiences with coal-fired boilers burning sludge which showed that recycling the flyash, lime, and carbon reduces consumption. The use of a unique envelope bag configuration reduces the footprint and energy consumption.
Patrick Esor explained the challenges in designing the material handling systems for PAC. Assurance of continuous controlled discharge of PAC or lime in storage involves consideration of the mechanical discharge as opposed to fluidization, vibration, or bin activators.
The individual power point presentations are in the Mercury Decision Tree and can be viewed through the following links.
Rob Nebergall - Norit
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Mercury Continuing Decision Process For: Products
Mercury Removal Equipment, Supply and Products - Presented by Rob Nebergall. Hot Topic Hour July 31, 2008.
Bernard Vosteen – Vosteen Consultants
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Mercury Continuing Decision Process For: Products
KNXTM and PRAVO® - a perfect duo in wet mercury capture. Presented by Bernard Vosteen. Hot Topic Hour July 31, 2008.
Bill Byers – Amended Silicates, Inc.
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Mercury Continuing Decision Process For: Products
Amended Silicates™: Mercury Control without harming Fly Ash presented by Bill
Byers - Hot Topic Hour July 31, 2008.
Patrick Esor – Sodimate, Inc.
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Products |
Mercury Continuing Decision Process For: Products
The Relevance and Efficiency of Appropriate PAC Storage, Discharge, and
Conveying Equipment presented by Patrick Esor - Hot Topic Hour July 31, 2008
Dale Nickels – Pittsburgh
Mineral & Environmental Technology
Ann Minga – Kuttner
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Other Technologies |
Mercury Continuing Decision Process For: Other Technologies
Activated Carbon Recovery
Sid Nelson – Sorbent Technologies
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Mercury Continuing Decision Process For: Products
ACI Sorbents & Systems from Albemarle. Presented by Sid Nelson. Hot Topic
Hour July 31, 2008.
FGD DECISION TREE
Folke Friesen - Evonik
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FGD Continuing Decision Process For: Products
The Path of Mercury and Options for Removal presented by Folke Friesen.
Mercury Control Hot Topic Hour July 31, 2008.