PETR 33 |
| Despite direct coal liquefaction has been extensively studied, only a few detailed analytical characterizations have been published. This work aims to determine the detailed analytical characterization of that kind of samples. A full boiling range liquefied (C5-350 °C) distillate was separated into distillation fractions (naphtha, kerosene and atmospheric gasoil), which were then fully characterized using the best available analytical techniques. The chemical composition of the distillation fractions was found to be more complex compared to conventional petroleum fractions indicating high level in aromatics, naphtheno-aromatics and, to some extend, olefinic compounds. Other key characteristics are the very high contents of nitrogen (N) and oxygen (O) and a low amount of paraffinic compounds. To get more molecular data, detailed characterizations have been conducted. Hydrocarbons, S, N and O profiles have been determined using mass spectrometry and GC techniques coupled with specific detectors (SCD and NCD). Besides, two-dimensional GC-FID has been used for the speciation of oxygenates with interesting results for the heavy cuts. These new data are of major interest for the valorization of liquefied coal products into commercial fuels using refining processes. |
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2nd International Symposium on Hydrotreating/Hydrocracking Technologies
8:30 AM-11:50 AM, Monday, 11 September 2006 Palace -- Presidio Room, Oral
Division of Petroleum Chemistry |