Beulah lignite analyses

Beulah lignite are given in Table 2. (Table 2 does not give the ultimate analysis for the mineral matter and thus does not provide... 

A different type of analysis has now provided this information (20) The dimension distributions p(a) of independent spherical scatterers with uniform density and diameter a which produces each of the terms in the sum in Equation (3) can be calculated (19) After obtaining the constants in the sum in Equation (3) by least-squares fits of this equation to the scattering curve measured for Beulah lignite at the University of North Dakota, we used these constants to evaluate the sum of the pore-dimension distribution functions for uniform spheres that are obtained (19) from the terms in the sum in Equation (3) The sum of these pore-dimension distributions was very similar to the power-law distribution given by Equation (4) The fact that we could obtain almost the same power-law dimension distribution by two independent methods suggests that such a distribution may be a good approximation to the pore-... 

Table I. Elemental Analysis of a Stratigraphic Sequence Containing Two Lignite Seams at the Beulah Mine, North Dakota. Results in parts per million on a dry coal basis determined by neutron activation analysis unless indicated otherwise.

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