Abstract
We developed and tested a system that combines a vacuum ultraviolet single photon ionization time-of-flight mass spectrometer (VUV-SPI-TOFMS) with a Fourier transform-infrared (FT-IR) spectrometer and used it for the simultaneous detection of the various compounds generated during the pyrolysis of coal. We characterized the performance of the system, including its limits of detection and time resolution. We also determined the various compounds that could be detected using the system. The instrument exhibited a laboratory-determined detection limit that was in the parts per billion volume (ppbv) range and a detection time of 10 s for most of the aromatic compounds generated during the pyrolysis process. In addition, using this system, it was possible to determine the correlation between the pyrolysis temperature and the various compounds generated from different types of coals during the pyrolysis process.
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