Coal resource information. Volume 1. Coal resource information requirements. Final report

This report describes the results of Task 1 of a multifaceted project to catalogue and evaluate coal resource information. This report identifies the coal resource information required by producers and users of coal. Coal resource information, in the context of this project, is defined as data on in situ coal resources (e.g., seam thickness, hydrologic data, and depth of overburden) and the physical and chemical properties of coal (e.g., proximate analysis, sulfur composition, and grindability) which affect its mineability or usability. The report includes all data necessary for each of seven categories of production and use: (1) extraction; (2) beneficiation; (3) transporting, loading, and storage; (4) carbonization; (5) combustion; (6) gasification; and (7) liquefaction. The findings are the outcome of a 1977 survey of experts in all areas of coal production and use. In all, 42 completed questionnaires were received and analyzed. The usefulness of traditional forms of coal resource data was confirmed. However, in addition to such items as proven reserves, proximate analysis, and calorific value, a host of other information requirements was given high priority by producers (e.g., hydrology data, methane content, and roof stability) and by users (e.g., grindability, ash fusibility, trace element analysis, and size stability).more » Because there is no single answer to the question of how much coal resource information is needed, a principal conclusion of the study is that a sound coal resource data base must be able to change to meet users' requirements as those data requirements are better identified and modified.« less