Hot-gas filter ash characterization

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Description

One of the key difficulties in the development of advanced pressurized fluidized-bed combustion (PFBC) and integrated gasification combined-cycle (IGCC) systems is the need to remove particulates from the gas stream at high temperatures and pressures. Research has revealed numerous cases of ash cake buildup on filter elements that has been difficult to remove using on-line jet pulsing. The objectives of this research are to: (1) determine the mechanisms by which a difficult-to-clean ash is formed and how it blinds or bridges hot-gas filters; (2) develop a method to determine the rate of blinding or bridging based on analyses of the ... continued below

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14 p.

Creation Information

Hurley, J. P.; Strobel, T. M. & Dockter, B. A. November 1995.

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Description

One of the key difficulties in the development of advanced pressurized fluidized-bed combustion (PFBC) and integrated gasification combined-cycle (IGCC) systems is the need to remove particulates from the gas stream at high temperatures and pressures. Research has revealed numerous cases of ash cake buildup on filter elements that has been difficult to remove using on-line jet pulsing. The objectives of this research are to: (1) determine the mechanisms by which a difficult-to-clean ash is formed and how it blinds or bridges hot-gas filters; (2) develop a method to determine the rate of blinding or bridging based on analyses of the feed coal and sorbent and on the operating conditions; and (3) provide suggestions for ways to prevent filter blinding and bridging by the troublesome ash. Four tasks are being performed: Task 1--field sampling and archive sample analysis; Task 2--laboratory-scale testing; Task 3--bench-scale testing; and Task 4--computer modeling. Results are presented from the first two tasks.

Physical Description

14 p.

Notes

OSTI as DE96002034

Source

  • Advanced coal-fired power systems `95 review meeting, Morgantown, WV (United States), 27-29 Jun 1995

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  • Other: DE96002034
  • Report No.: DOE/MC/30098--96/CO535
  • Report No.: CONF-9506162--22
  • Grant Number: FC21-93MC30098
  • DOI: 10.2172/124997 | External Link
  • Office of Scientific & Technical Information Report Number: 124997
  • Archival Resource Key: ark:/67531/metadc625234

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • November 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

Description Last Updated

  • May 2, 2016, 1:27 p.m.

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Hurley, J. P.; Strobel, T. M. & Dockter, B. A. Hot-gas filter ash characterization, report, November 1995; Grand Forks, North Dakota. (digital.library.unt.edu/ark:/67531/metadc625234/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.