7
Figure 6: Overview of the data collected from one reactor of the online system, including the one-dimensional TCD plot, the one-dimensional FID plot, the GCxGC plot, and the automation step to convert the three sets of data into a colour-coded bar plot.
Conclusions
In conclusion, an example of offl ine GCxGC was given with the analysis of a hydrocarbon stream, which provided both group type information as well as quantifi cation of the hydrocarbon composition. A comparison was made between the GCxGC and DHA analysis of the same sample, which showed that GCxGC has the same level of accuracy and precision as the DHA method. In addition to offl ine GCxGC, an example of catalysts screening using a seven parallel reactor setup coupled to online GCxGC was discussed, including the automation of the data processing.
Acknowledgements The authors would like to acknowledge Rob
Edam for all of his contributions with initially setting up the online GCxGC instrument. The authors would also like to acknowledge Garry Meima, Edwin Mes, and George Bellos for all of the support they have provided for this work.
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