Rapid Qualitative and Quantitative Analysis of Pyrolysis Oil Using GC–QMS
Introduction
Pyrolysis oil is obtained in the chemical recycling process, and its quality is evaluated using the GC–QMS method. In this method thermal decomposition products derived from a wide variety of feedstock polymers are detected, so identifying the types of polymers present and performing quantitative evaluation require considerable time. For identifying polymer types in resins, characteristic pyrolysis products obtained by pyrolysis (PY)–GC–MS are used as marker compounds; however, it remains unclear whether the same marker compounds can be applied for identifying polymer types in pyrolysis oil.
In this study, we used the JMS Q1600GC UltraQuad™ SQ Zeta to investigate the selection of marker compounds for the analysis of pyrolysis oil by the GC–QMS method, as well as a rapid identification method for polymer types in pyrolysis oil using these marker compounds. Furthermore, we also investigated a method for evaluating the composition ratios of polymer types based on the peak area ratios of the marker compounds.