Coal-water slurry fuel combustion testing in an oil-fired industrial boiler. Semi-annual technical progress report, 15 August 1995--15 February 1996

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The Pennsylvania State University is conducting a coal-water slurry fuel (CWSF) program with the US Department of Energy (DOE) and the Commonwealth of Pennsylvania to determine the viability of firing CWSF in an industrial boiler designed for heavy fuel oil. Penn State and DOE have entered into a cooperative agreement to determine if CWSFs prepared from cleaned coal (containing approximately 3.5 wt.% ash and 0.9 wt.% sulfur) can be burned effectively in a heavy fuel oil-designed industrial boiler without adverse impact on boiler rating, maintainability, reliability, and availability. Information will also be generated to help in the design of new ... continued below

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15 p.

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Miller, B.G. & Scaroni, A.W. June 3, 1997.

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Description

The Pennsylvania State University is conducting a coal-water slurry fuel (CWSF) program with the US Department of Energy (DOE) and the Commonwealth of Pennsylvania to determine the viability of firing CWSF in an industrial boiler designed for heavy fuel oil. Penn State and DOE have entered into a cooperative agreement to determine if CWSFs prepared from cleaned coal (containing approximately 3.5 wt.% ash and 0.9 wt.% sulfur) can be burned effectively in a heavy fuel oil-designed industrial boiler without adverse impact on boiler rating, maintainability, reliability, and availability. Information will also be generated to help in the design of new systems specifically configured to fire these clean coal-based fuels. The project consists of four phases: (1) design, permitting, and test planning, (2) construction and start up, (3) demonstration and evaluation (1,000-hour demonstration), and (4) expanded demonstration and evaluation (installing a CWSF preparation circuit, performing baseline tests firing No. 6 fuel oil, and conducting additional CWSF testing). The first three phases (i.e., the first 1,000-hour demonstration) have been completed and the combustion performance of the burner that was provided with the boiler did not meet performance goals. A maximum coal combustion efficiency of 95% (compared to a target of 98%) was achieved and natural gas cofiring (15% of the total thermal input) was necessary to maintain a stable flame. Consequently, the first demonstration was terminated after 500 hours. The second CWSF demonstration (Phase 4) will be conducted with a proven CWSF-designed burner. Prior to starting the second demonstration, a CWSF preparation circuit was constructed to provide flexibility in CWSF production. The circuit initially installed involved single-stage grinding. A regrid circuit was recently installed and will be evaluated. A burner was installed from ABB Combustion Engineering (ABB/CE) and will be used to generate baseline data firing No. 6 fuel oil and CWSF. A temporary storage system for No. 6 fuel oil was installed and modifications to the existing CWSF handling and preheating system were made to accommodate No. 6 oil.

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15 p.

Notes

OSTI as DE98051254

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  • Other Information: PBD: 3 Jun 1997

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  • Other: DE98051254
  • Report No.: DOE/PC/88697--T14
  • Grant Number: FC22-89PC88697
  • DOI: 10.2172/671852 | External Link
  • Office of Scientific & Technical Information Report Number: 671852
  • Archival Resource Key: ark:/67531/metadc711042

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  • June 3, 1997

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 11, 2015, 12:02 p.m.

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Miller, B.G. & Scaroni, A.W. Coal-water slurry fuel combustion testing in an oil-fired industrial boiler. Semi-annual technical progress report, 15 August 1995--15 February 1996, report, June 3, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc711042/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.