Elucidation of the nature of organic nitrogen in the Argonne Premium Coals

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The objective of this study is to provide detailed information on the types of nitrogen compounds in coals as a function of rank and age. Desorption high resolution mass spectrometry is being used to examine both whole coals and their pyridine extracts. The authors have shown that nitrogen compounds tend to have larger ring numbers compared to all other aromatic clusters. Now they have found that in low rank coals, such as the subbituminous Wyodak-Anderson, the majority of nitrogen containing compounds have one or more oxygens. The most abundant group of molecules have a nitrogen plus two oxygens and an ... continued below

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5 p.

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Winans, R.E. & Tomczyk, N.A. June 1, 1997.

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Description

The objective of this study is to provide detailed information on the types of nitrogen compounds in coals as a function of rank and age. Desorption high resolution mass spectrometry is being used to examine both whole coals and their pyridine extracts. The authors have shown that nitrogen compounds tend to have larger ring numbers compared to all other aromatic clusters. Now they have found that in low rank coals, such as the subbituminous Wyodak-Anderson, the majority of nitrogen containing compounds have one or more oxygens. The most abundant group of molecules have a nitrogen plus two oxygens and an average ring size of four to five. They have evidence that many of these molecules may be derived from alkaloids. In the higher rank coals, the average ring size increases to seven for the medium volatile Upper Freeport coal. These multiple ring nitrogen compounds play an important role in coal processing and in NO{sub x} production and elimination in combustion.

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5 p.

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OSTI as DE97053129

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  • 9. international conference on coal science (ICCS-9) and exhibition, Essen (Germany), 7 Sep 1997

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  • Other: DE97053129
  • Report No.: ANL/CHM/CP--91670
  • Report No.: CONF-970942--5
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 541784
  • Archival Resource Key: ark:/67531/metadc693995

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  • June 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 16, 2015, 5:03 p.m.

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Winans, R.E. & Tomczyk, N.A. Elucidation of the nature of organic nitrogen in the Argonne Premium Coals, article, June 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc693995/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.