An experimental study of NO{sub x} recycle in the NOXSO flue gas cleanup process. Final report

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NO{sub x} recycle represents one part of the NOXSO process. This process can remove 90% of NO{sub x} and SO{sub 2} simultaneously from flue gas by using a fluidized bed of sorbent. Spent sorbent is regenerated by treatment at high temperatures with a reducing gas. Adsorbed NO{sub x} is evolved on heating the sorbent to a regeneration temperature. The concentrated stream of NO{sub x} produced is returned to the boiler with the combustion air and reduced in the flame, which is called NO{sub x} recycle. The concept of NO{sub x} recycle has been experimentally evaluated at the US Department of ... continued below

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150 p.

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Zhou, Q.; Haslbeck, J. L. & Neal, L. G. March 1993.

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Description

NO{sub x} recycle represents one part of the NOXSO process. This process can remove 90% of NO{sub x} and SO{sub 2} simultaneously from flue gas by using a fluidized bed of sorbent. Spent sorbent is regenerated by treatment at high temperatures with a reducing gas. Adsorbed NO{sub x} is evolved on heating the sorbent to a regeneration temperature. The concentrated stream of NO{sub x} produced is returned to the boiler with the combustion air and reduced in the flame, which is called NO{sub x} recycle. The concept of NO{sub x} recycle has been experimentally evaluated at the US Department of Energy`s Pittsburgh Energy Technology Center (PETC). NO{sub x} destruction has been demonstrated on a 500 lb/hr pulverized coal combustor and a 1.7 MMBtu/hr tunnel furnace combustor firing both natural gas and coal-water slurry. The NO{sub x} recycle experimental study discussed in this report and performed on Babcock & Wilcox (B&W)`s six MMBtu/hr Small Boiler Simulator (SBS) is a pilot-scale test. The objective is to provide further fundamental understanding and necessary information for the NOXSO full-scale demonstration at Ohio Edison`s Niles Power Plant which uses the same type of cyclone burners. The experimental testing included injection of NO, NO{sub x} and different combinations of NO/NO{sub 2} with tile primary air (PA) and secondary air (SA) to the combustor. Results are consistent with earlier test data obtained on PETC`s facility and will be used for the design of the NOXSO commercial demonstration plant at Niles.

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150 p.

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OSTI as DE95017779

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  • Other Information: PBD: Mar 1993

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  • Other: DE95017779
  • Report No.: DOE/PC/91337--T5
  • Grant Number: AC22-91PC91337
  • DOI: 10.2172/106651 | External Link
  • Office of Scientific & Technical Information Report Number: 106651
  • Archival Resource Key: ark:/67531/metadc624499

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  • March 1993

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  • June 16, 2015, 7:43 a.m.

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  • Dec. 17, 2015, 1:04 p.m.

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Zhou, Q.; Haslbeck, J. L. & Neal, L. G. An experimental study of NO{sub x} recycle in the NOXSO flue gas cleanup process. Final report, report, March 1993; United States. (digital.library.unt.edu/ark:/67531/metadc624499/: accessed April 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.