 rank" will be used to designate those differences in coal that are due to the progressive change from lignite to anthracite, a change marked by the loss of moisture, of oxygen, and of volatile matter. This change is generally accompanied by an increase...  American Fuels ... - Σελίδα 1των Raymond Foss Bacon, William Allen Hamor - 1922 - 1257 σελίδεςΠλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | George Frederick Gebhardt - 1925 - 1058 σελίδες
...Semi-anthracite Semi-bituminous Bituminous Sub-bituminous Lignite The word " rank " in this connection is used to designate " those differences in coal that...increase of fixed carbon, of sulphur, and probably of ash. When, however, one coal is distinguished from another by the amount of ash or sulphur it contains,... | |
 | Eugene McAuliffe - 1927 - 496 σελίδες
...Fields of the United States," Professional Paper 100-A, by Marius R. Campbell. 12 RAILWAY FUEL ences in coal that are due to the progressive change from...increase of fixed carbon, of sulphur, and probably of ash. When, however, one coal is distinguished from another by the amount of ash or sulphur it contains,... | |
 | 1917 - 136 σελίδες
...with the fields comprised within the State. RANKS OF COAL. METHODS OF CLASSIFICATION. In this report the word "rank" will be used to designate those differences...increase of fixed carbon, of sulphur, and probably of ash. When, however, one coal is distinguished from another by the amount of ash or sulphur it contains,... | |
 | 1926 - 638 σελίδες
...decomposition under peat- and coal-forming conditions. The US Geological Survey uses the word "rank" to designate those differences in coal that are due...anthracite, a change marked by the loss of moisture, oxygen, and volatile matter; and by an increase of fixed carbon. The classification of coal by ranks... | |
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