Coking coal of the United States: Modern and historical locations of coking coal mining locations and chemical, rheological, petrographic, and other data from modern samples

For the open-file report we collected new coking coal samples from Alabama, Kentucky, Oklahoma and Arkansas and analyzed them for proximate and ultimate analyses; calorific value; sulfur forms; major-, minor-, and trace-element abundances; free swelling indices; Gieseler plasticity; ASTM dilatation; coal petrography, and several other tests [air-dry loss (ADL), residual moisture (RM), equilibrium moisture (EQM), and true specific gravity (TSG)]. Coal Stability Factor (CSF) and Coal Strength after Reaction with CO2 (CSR) were predicted using chemical, rheological, and petrographic data (pCSF and pCSR, respectively). In addition, data from previously analyzed samples in Pennsylvania, West Virginia, Virginia, and Kentucky...

Categories: Data; Tags: Alabama, Arkansas, Arkansas Valley coal field, Boone County, W.Va., CBI, All tags... CSF, CSR, Cambria County, Pa., Central Appalachian basin coal region, Clearfield County, Pa., Coal Strength after Reaction, Coke Stability Factor, Composition Balance Index, Eastern Oklahoma coal field, Elk County, Pa., Energy Resources, Floyd County, Ky., Franklin County, Ala., Gieseler plasticity, HGI, Hardgrove Grindability Index, Indiana County, Pa., Jefferson County, Ala., Kanawha County, W.Va., Kentucky, Logan County, W.Va., McDowell County, W.Va., Mingo County, W.Va., Nicholas County, W.Va., Northern Appalachian basin coal region, Oklahoma, Owsley County, Ky., Pennsylvania, Pike County, Ky., Plateau coal field, Raleigh County, W.Va., SI, Sebastian County, Ark., Somerset County, Pa., Southern Appalachian basin coal region, Strength Index, Tazewell County, Va., USGS Science Data Catalog (SDC), Virginia, Warrior coal field, West Virginia, Winston County, Ala., Wise County, Va., Wyoming County, W.Va., acid to base ratio, air dry loss, alkali index, apparent specific gravity, as received basis, ash, ash fusion, bituminous, calorific value, coal, coking, dilatation, dry ash-free basis, dry basis, dry mineral matter-free basis, equilibrium moisture, fixed carbon, high-volatile, inertinite, liptinite, low-volatile, medium-volatile, mineral matter, moist mineral matter-free basis, organic sulfur, oven-coke, oxidation, proximate, pyritic sulfur, rank, reflectance, residual moisture, semifusinite, short ton, sulfate sulfur, ultimate, vitrinite, volatile matter, Fewer tags

Data release for mean random reflectance for products of hydrous pyrolysis experiments on artificial rock mixtures of humic Wyodak-Anderson coal (2018)

Mean random vitrinite reflectance (Ro) is the most widely accepted method to determine thermal maturity of coal and other sedimentary rocks. However, oil-immersion Ro of polished rock or kerogen samples is commonly lower than Ro values measured in samples from adjacent vitrinite-rich coals that have undergone the same level of thermal stress. So-called suppressed Ro values have also been observed in hydrous pyrolysis experiments designed to simulate petroleum formation. Various hypotheses to explain Ro suppression, such as sorption of products generated from liptinite during maturation, diagenetic formation of perhydrous vitrinite or overpressure, remain controversial. To experimentally test for suppression of vitrinite...

Categories: Data; Tags: Campbell County, Cathedral Creek, Energy Resources, Rio Blanco County, USGS Science Data Catalog (SDC), All tags... artificial rock, hydrous pyrolysis, liptinite, suppression, vitrinite reflectance, Fewer tags