Integrated dry NO{sub x}/SO{sub 2} emissions control system. Final report, Volume 1: Public design Metadata

Title

• Main Title Integrated dry NO{sub x}/SO{sub 2} emissions control system. Final report, Volume 1: Public design

Creator

• Author: Hunt, Terry
  Creator Type: Personal
  Creator Info: Public Service Company of Colorado
• Author: Hanley, Thuston J.
  Creator Type: Personal
  Creator Info: Martinez & Hromada Associates, Inc.

Contributor

• Sponsor: United States. Office of the Assistant Secretary for Fossil Energy.
  Contributor Type: Organization
  Contributor Info: USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)

Publisher

• Name: Public Service Co. of Colorado, Denver, CO (United States)
  Place of Publication: United States
• Name: Martinez and Hromanda Associates, Inc., Denver, CO (United States)
  Place of Publication: United States

Date

• Creation: 1997-11-01

Language

• English

Description

• Content Description: The U.S. Department of Energy (DOE)/Pittsburgh Energy Technology Center (PETC) and the Public Services Company of Colorado (PSCo) signed the cooperative agreement for the Integrated Dry NO{sub x}/SO{sub 2} Emissions Control System in March 1991. This project integrates various combinations of five existing and emerging technologies onto a 100 MWe, down-fired, load-following unit that burns pulverized coal. The project is expected to achieve up to 70% reductions in both oxides of nitrogen (NO{sub x}) and sulfur dioxide (SO{sub 2}) emissions. Various combinations of low-NO{sub x} burners (LNBs), overfire air (OFA) ports, selective non-catalytic reduction (SNCR), dry sorbent injection (DSI) using both calcium- and sodium-based reagents, and flue-gas humidification are expected to integrate synergistically and control both NO{sub x} and SO{sub 2} emissions better than if each technology were used alone. For instance, ammonia emissions from the SNCR system are expected to reduce NO{sub 2} emissions and allow the DSI system (sodium-based reagents) to achieve higher removals of SO{sub 2}. Unlike tangentially or wall-fired units, down-fired require substantial modification to their pressure parts to retrofit LNBs and OFA ports, substantially increasing the cost of retrofit. Conversely, the retrofitting of SNCR, DSI, or humidification systems does not require any major boiler modifications and are easily retrofitted to all boiler types. However, existing furnace geometry and flue-gas temperatures can limit their placement and effectiveness. In particular, SNCR requires injecting the SNCR chemicals into the furnace where the temperature is within a very narrow temperature range.
• Physical Description: 213 p.

Subject

• Keyword: Nitrogen Oxides
• Keyword: Sorbent Injection Processes
• Keyword: Fossil-Fuel Power Plants
• STI Subject Categories: 01 Coal, Lignite, And Peat
• Keyword: Combined Soxnox Processes
• Keyword: Sulfur Dioxide
• Keyword: Air Pollution Control
• STI Subject Categories: 20 Fossil-Fueled Power Plants
• Keyword: Flue Gas

Source

• Other Information: PBD: Nov 1997

Collection

• Name: Office of Scientific & Technical Information Technical Reports
  Code: OSTI

Institution

• Name: UNT Libraries Government Documents Department
  Code: UNTGD

Resource Type

• Report

Format

• Text

Identifier

• Other: DE98052621
• Report No.: DOE/PC/90550--T18
• Grant Number: FC22-91PC90550
• DOI: 10.2172/589292
• Office of Scientific & Technical Information Report Number: 589292
• Archival Resource Key: ark:/67531/metadc692743

Note

• Display Note: OSTI as DE98052621