Coal liquefaction process streams characterization and evaluation: High performance liquid chromatography (HPLC) of coal liquefaction process streams using normal-phase separation with uv diode array detection

Technical Report · Sat Jan 01 04:00:00 EST 1994

DOI:https://doi.org/10.2172/10143663· OSTI ID:10143663

Clifford, D J; McKinney, D E; Hou, Lei; Hatcher, P G ^[1]

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1. Pennsylvania State Univ., University Park, PA (United States). Dept. of Materials Science and Engineering

This study demonstrated the considerable potential of using two-dimensional, high performance liquid chromatography (HPLC) with normal-phase separation and ultraviolet (UV) diode array detection for the examination of filtered process liquids and the 850{degrees}F{sup {minus}} distillate materials derived from direct coal liquefaction process streams. A commercially available HPLC column (Hypersil Green PAH-2) provided excellent separation of the complex mixture of polynuclear aromatic hydrocarbons (PAHs) found in coal-derived process streams process. Some characteristics of the samples delineated by separation could be attributed to processing parameters. Mass recovery of the process derived samples was low (5--50 wt %). Penn State believes, however, that, improved recovery can be achieved. High resolution mass spectrometry and gas chromatography/mass spectrometry (GC/MS) also were used in this study to characterize the samples and the HPLC fractions. The GC/MS technique was used to preliminarily examine the GC-elutable portion of the samples. The GC/MS data were compared with the data from the HPLC technique. The use of an ultraviolet detector in the HPLC work precludes detecting the aliphatic portion of the sample. The GC/MS allowed for identification and quantification of that portion of the samples. Further development of the 2-D HPLC analytical method as a process development tool appears justified based on the results of this project.

• Research Organization: Consolidation Coal Co., Library, PA (United States). Research and Development Dept.; Pennsylvania State Univ., University Park, PA (United States). Dept. of Materials Science and Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-89PC89883
• OSTI ID: 10143663
• Report Number(s): DOE/PC/89883--85; ON: DE94010269; BR: AA2515000/AA2515150
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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COAL LIQUEFACTION
COAL LIQUIDS
EXPERIMENTAL DATA
FRACTIONATION
GAS CHROMATOGRAPHY
HYDROGENATION AND LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTROSCOPY
RECOMMENDATIONS
SEPARATION PROCEDURES
ULTRAVIOLET RADIATION