Comparison of Refractory Performance in Black Liquor Gasifiers and a Smelt Test System

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Prior laboratory corrosion studies along with experience at the black liquor gasifier in New Bern, North Carolina, clearly demonstrate that serious material problems exist with the gasifier's refractory lining. Mullite-based and alumina-based refractories used at the New Bern facility suffered significant degradation even though they reportedly performed adequately in smaller scale systems. Oak Ridge National Laboratory's involvement in the failure analysis, and the initial exploration of suitable replacement materials, led to the realization that a simple and reliable, complementary method for refractory screening was needed. The development of a laboratory test system and its suitability for simulating the environment of ... continued below

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Peascoe, RA September 25, 2001.

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Prior laboratory corrosion studies along with experience at the black liquor gasifier in New Bern, North Carolina, clearly demonstrate that serious material problems exist with the gasifier's refractory lining. Mullite-based and alumina-based refractories used at the New Bern facility suffered significant degradation even though they reportedly performed adequately in smaller scale systems. Oak Ridge National Laboratory's involvement in the failure analysis, and the initial exploration of suitable replacement materials, led to the realization that a simple and reliable, complementary method for refractory screening was needed. The development of a laboratory test system and its suitability for simulating the environment of black liquor gasifiers was undertaken. Identification and characterization of corrosion products were used to evaluate the test system as a rapid screening tool for refractory performance and as a predictor of refractory lifetime. Results from the test systems and pl ants were qualitatively similar.

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  • International Chemical Recovery Conference, Whistler, British Columbia (CA), 06/11/2001--06/14/2001

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  • Report No.: P01-110113
  • Grant Number: AC05-00OR22725
  • Office of Scientific & Technical Information Report Number: 788623
  • Archival Resource Key: ark:/67531/metadc719640

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Office of Scientific & Technical Information Technical Reports

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  • September 25, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • March 30, 2016, 12:19 p.m.

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Peascoe, RA. Comparison of Refractory Performance in Black Liquor Gasifiers and a Smelt Test System, article, September 25, 2001; Tennessee. (digital.library.unt.edu/ark:/67531/metadc719640/: accessed July 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.