Boiler MACT Compliance Project: Citizens Thermal Energy

Boiler MACT Compliance Project: Citizens Thermal Energy

Location: Indianapolis

Client: Citizens Thermal Energy

Citzens Thermal Energy chose Burns & McDonnell to assist in developing alternative strategies and capital cost estimates for the retrofit of air pollution control equipment at its Perry K Steam Plant. Burns & McDonnell then provided detailed design of the recommended compliance strategy. During evaluation and cost estimating, the firm worked closely with CT to develop innovative strategies, equipment arrangements, constructability reviews and cost-effective approaches for this land-locked facility. Burns & McDonnell then provided detailed design of the complicated retrofit project.

  • Review of coal analyses and development of design base
  • Regulatory review
  • Alternatives evaluation
  • Cost estimating

Citizens Thermal Energy (CTE) chose Burns & McDonnell to assist them in developing alternative strategies and capital cost estimates for the retrofit of air pollution control (APC) equipment at the Perry K Steam Plant in Indianapolis. CTE may be required to retrofit air pollution control equipment to the plant to comply with the emission limits of the Industrial Boiler MACT Rule.

Through prior investigations, CTE had tentatively determined that a fabric filter would be required to treat flue gases from boilers 12, 15 and 16. Furthermore, CTE had contemplated retrofitting a fabric filter inside the casing of the existing common electrostatic precipitator (ESP) for boilers 15 and 16. This retrofit fabric filter would treat the exhaust gases from boilers 15 and 16 as well as the flue gas exiting the boiler 12 ESP, which would remain in service.

During the course of the evaluation and cost estimates, Burns & McDonnell worked closely with CTE to develop innovative strategies, equipment arrangements, constructability reviews, and cost-effective approaches for this landlocked facility, in addition to the originally conceived plans.

Burns & McDonnell continues to assist CTE with work, including:

  • Site visits: Several site visits and walkdowns were conducted to assess the feasibility of a fabric filter retrofit and balance of plant issues, such as ductwork routing, draft system modifications, etc. Plant data was gathered including operating data (coal data, boiler heat input, boiler excess air, flue gas temperatures), drawings and previous investigational studies.
  • Establishment of design basis: Burns & McDonnell reviewed information provided by CTE to develop a design basis that established the flue gas flow rates, uncontrolled pollutant concentrations and outlet emissions.
  • Review and recommend compliance strategy: CTE and Burns & McDonnell are reviewing the potential compliance strategies and corresponding cost estimates and determining recommended approach.
  • Develop cost estimates: Cost estimates are being developed though Burns & McDonnell's Construction/Design-Build Group based on a "bottom-up" type estimate. Burns & McDonnell is also utilizing vendor budgetary pricing, as necessary, for the major APC equipment. The study was completed in December 2004.
  • Compliance implementation: Burns & McDonnell was asked to assist in the design and implementation of the selected compliance approach. That effort began in April 2005.