“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Demonstration of Amended Silicates™ for Mercury Control at Miami Fort Unit 6

Project SummarySpring, 2004

Jim Butz, Principal InvestigatorAmended Silicates, LLC

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Features of Sorbents for Mercury Control Low capital cost

Easy to retrofit

Control is simple

Minimal impact on plant operation

Hg removal rate controlled by sorbent injection ratio

Applicable to all coals, some more difficult (PRB, lignite)

Ongoing need for sorbent

Sorbent collected with fly ash

Two types of sorbent for mercury control – activated carbon and Amended Silicates™

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Amended Silicates™Advance Sorbent Solution

Amended Silicates™ are inexpensive, non-carbon substrates amended with mercury-binding sites

Silicate-based substrate, chemically similar to the native fly ash – no impact on sale of fly ash

Sites react with elemental and oxidized mercury species to bind the mercury to the sorbent

ADA initial development effort funded by DOE, EPA, CH2M Hill

Patent pending

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Amended Silicates™ Mercury Control

Pilot Plant Results

Note: Concentration units [µg/Nm3]

96.7%90.0%70.5%% Removal

0.250.462.04Post-Baghouse Hg

1.630.525.88Pre-Baghouse Hg

7.033.837.25Baseline Vapor

7.554.61Total Hg baseline

9.13.81.6

Sorbent Injection Rate (lb/MMACF)

© 2003, all rights reserved

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Amended Silicates™, LLC Joint Venture

– ADA Technologies - technology developer– CH2M Hill - utility market presence and scale-up to

commercial production– Amended Silicates, LLC was formed in April 2003

Objective – Provide advance sorbent technology as a low-cost

capital and O&M solution to meet utility customers’ need to control flue-gas mercury

Current Status– Amended Silicates, LLC will develop, manufacture,

market, and sell advanced sorbent on a commercial scale in the ~2007 timeframe.

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Project Objective

Primary: Demonstrate ability of Amended Silicates sorbent to remove mercury from flue gas in a commercial-scale installation. Conduct a 30-day continuous trial to show compatibility with plant equipment.

Secondary: Deliver commercial quantities of Amended Silicates sorbent for use in the demonstration.

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Project Team

Amended Silicates, LLC: prime contractor and administrator of first- and second- tier subcontracts

ADA Technologies, Inc.: sorbent developer and lead organization for field operations

CH2M Hill: lead organization for sorbent preparation and site engineering

Cinergy Power Generation Services, LLC: Provider of host site and cost-share partner

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Host Site Description

Cinergy Miami Fort station in North Bend, OH Unit 6: 175 MW(e) capacity Eastern bituminous coal (WV and KY sources) Equipped with 3 ESPs in series (2 back-to-

back, common box), each less than 200 SCA Mercury measurements to be made after first

ESP to be representative of small-ESP plant configuration

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Project Overview

Scheduled for completion in 16 months after contract signature

Scope: $1.76 million, including Amended Silicates sorbent costs of ~$600K

Phase I: Preparation Phase II: Demonstration Phase III: Analysis

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Phase I: Preparation

Project Planning– Detailed coordination with host site, project

team

Site Preparation and Sorbent Acquisition– CFD modeling of injection to optimize layout

Injection System Installation and Checkout

Mercury Monitoring System Installation and Checkout (UNDEERC)

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Phase II: Demonstration

Baseline Mercury Removal Characterization

Activated Carbon Trial– Use as basis for comparison

Amended Silicates Trial– Control Level (parametric) Investigation– Extended Injection Evaluation

Ontario Hydro Sampling for comparison with CEMS data and QA/QC evaluation

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Phase III: Analysis

QA/QC Planning and Execution– UNDEERC as QA/QC lead

Analysis of Data from Demonstration Trials– Establish project data base– ID trends and significant parameters in sorbent

performance Reporting

– Preparation of conference papers and project reports Project Management

– Establish project website for coordination among team members and means to share data

– Manage overall project activities with respect to scope, schedule, and budget

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Mercury Measurement

UNDEERC mercury continuous emissions monitors

Western Kentucky University Ontario-Hydro sampling

Coal and Fly ash samples to be acquired on a routine basis for mercury analysis

Fly ash samples acquired for evaluation in concrete testing by Boral Materials Technologies

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Milestones April 2004- project start Fall 2004- start installation at site Early 2005- deliver sorbents to site First Quarter of 2005: start of injection at host site Second Quarter 2005: finish testing, start

analyses Third Quarter 2005: Complete analyses, prepare

final report Fourth Quarter 2005: Continue planning for

dedicated sorbent manufacturing facility; identify additional test opportunities

“Advanced sorbent solutions for the environment.”© 2003, all rights reserved

Seeking Strategic Partners

Looking for utilities, others for technical and financial participation in project

Opportunity to monitor project on a first-hand basis

Review of data and input to test plans Confidential insight into sorbent

production and economics Favored position in scheduling of further

demonstrations