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15 Μαΐ 2016 · Calorific value and compositional ultimate analysis with a case study of a Texas lignite. May 15, 2016. Measurements to determine coal quality as fuel include proximate analysis, ultimate analysis and calorific value.
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Abstract. Statistical analysis of chemical data on Texas Eocene coals revealed startigraphic and geographic trends in lignite quality. Chemical data on near-surface coals wre obtained from various private and public sources. Seams from deep-basin coals were compared.
Near-surface lignite occurs in two elongate bands stretching from the Rio Grande (Webb and Starr Counties) to the Red River (Bowie County) and Angelina River (Angelina County). Deep-basin lignite occurs coastward and downdip from the near-surface occurrences.
Step-by-step guide to add Analysis ToolPak in Excel on Mac. Step 1: Open Excel on your Mac and go to the “Tools” menu. Step 2: Select “Add-Ins” from the drop-down menu. Step 3: In the Add-Ins window, check the box next to “Analysis ToolPak” to enable it.
1 Ιαν 2011 · Several geostatistical methods have been combined to formulate a quantitative characterization for appraising uncertainty. Drill hole datasets ranging from widespread exploration drilling to detailed development drilling from a lignite deposit in Texas were used to illustrate the modeling.
