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The presence of aggregated structures in pyridine coal extracts are indicated by small angle neutron scattering studies of coal-extract solutions. However, no such aggregated structures exist in coal extracts with a carbon disulfide-N-methyl-2-pyrrolidane mixed solvent, which may indicate that. in a thermodynamic sense. pyridine is not such a good solvent for coal.
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03 Gaseous fuels (derived gaseous fuels) rather than traditional thermogenic reactions is mainly responsible for gas compression. Invasions by COz of deep-seated external origins are readily recognized by their isotopic compositions (-7 ? 21% PDB).
Ruthenium catalyzed ammonia borane (AB) hydrolysis using aqueous solutions in the range of 5e25 wt% were experimentally studied. The experimental apparatus also included a means for gaseous ammonia sequestration. In addition, the effects of aging on reaction rates and total H 2 conversion were inves