Air Force gets permit to back out coal at Ohio base

The Ohio Environmental Protection Agency issued on July 17 a final air permit-to-install (PTI) that allows Wright-Patterson Air Force Base to convert four coal-fired boilers to natural gas and to shut two other coal boilers.

One set of emissions units at this facility are:

  • B606 is a 177 mmBtu/hour coal-fired spreader stoker boiler No. 4, with baghouse control, Building 31240;
  • B607 at facility 31240, boiler No. 5; to be natural gas-fired; 169 million BTU per hour nominal heat input;
  • B608 at facility 31240, boiler No. 6; to be natural gas-fired; 169 million BTU per hour nominal heat input; and
  • B609 at facility 31240, boiler No. 7; natural gas-fired; 99.8 million BTU per hour nominal heat input.

Emissions Units B607 and B608 are being converted from coal to natural gas. Each of these emissions units will be converted individually, one prior to the other, (so that only one boiler will be out of service at any time) that will lead to a temporary period of time when one emissions units will be using coal and one will be using natural gas. Emissions Unit B606 shall permanently cease operation and shutdown on or before Jan. 31, 2016.

Other emissions units at the base are:

  • B307 at facility 20770, boiler No. 2; natural gas-fired; 96.9 million BTU per hour nominal heat input;
  • B308 at facility 20770, boiler No 1, natural gas fired; 96.9 million BTU per hour nominal heat input;
  • B309 at facility 20770, boiler No 4, to be natural gas fired; 169 million BTU per hour nominal heat input;
  • B310 at facility 20770, boiler No 3, to be natural gas fired; 169 million BTU per hour nominal heat input;
  • B311 at facility 20770, boiler No 5, coal-fired spreader stoker with baghouse control; 183 million BTU per hour nominal heat input.

Emissions Units B309 and B310 are being converted from coal to natural gas, the permit noted. Each emissions unit will be converted individually, one prior to the other, (so that only one boiler will be out of service at any time) that will lead to a temporary period of time when one emissions unit will be using coal and one will be using natural gas. The terms and conditions of this PTI will become effective for each emissions unit upon completion of its conversion to natural gas. Emissions Unit B311 shall permanently cease operation and shut down on or before Jan. 31, 2016.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.