On the Molecular-Level Interactions Between Pyridine and Pittsburgh No. 8 Coal

Document Type

Article

Publication Date

3-1-2003

Department

Chemistry and Biochemistry

School

Mathematics and Natural Sciences

Abstract

The poly-cyclic units of Pittsburgh No. 8 coal (PIT), on the average, lie in short-range structural domains of ca. three layers. The species C14H9 is consistent with the average PCA unit in PIT, and its radius is ∼2.9 Å. The average distance between the PCA layers in the short-range domains of PIT is ∼3.9 Å. The addition of pyridine molecules to PIT does not alter structuring within the PCA units to an extent measured by wide-angle X-ray scattering experiments, and it appears that the interlayer structuring within the short-range structural domains in PIT is also not altered to a measurable extent. Rather, the quasi-stable adduct is formed between the three-layer domains of PIT and the pyridine molecules.

Publication Title

Energy and Fuels

Volume

17

Issue

2

First Page

482

Last Page

488

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