An integrated separation scheme for coal-derived liquids using ion-exchange and adsorption chromatography
作者： Michael G. Strachan , R. B. Johns
DOI: 10.1021/AC00293A011
关键词: Coal liquefaction 、 Liquefaction 、 Chemistry 、 Petrochemical 、 Ion exchange 、 Adsorption 、 Ion chromatography 、 Chemical polarity 、 Chromatography 、 Distillation
摘要: A separation scheme for coal-derived liquids has been developed that separates by functionality into discrete compound classes using ion-exchange resins; neutrals are further subdivided fractions differing in polarity, structure, and molecular weight adsorption chromatography. Sufficient material can be separated to allow characterization at both gross structural levels. It gives excellent overall reproducibility (+/- 4%) recovery (>97%). Removal of acidic base species prior the liquefaction solvent distillation is a major advantage method because it leads reduction loss lower boiling components potential thermal alteration sample. The selectivity discrimination procedure demonstrated Victorian brown coal (Loy Yang field) product as shown spectroscopic chemical analyses its fractions. use this probe facilitate investigation mechanisms enabling ready selection analysis varying according choice parameters encompassing functionality, structure. 29 references, 7 figures, 5 tables.
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