Analysis of Pressurized Pyrolysis Behavior of Yichun Coal at Different Temperature with Gas Chromatography and Mass Spectrometer

Abstract

Abstract The fast pyrolysis connected with gas chromatography/mass spectrometer is used to explore the pyrolysis process of Yichun raw coal, and the influence of different pyrolysis temperatures on the composition and distribution of pyrolysis products under high pressure is investigated. Studies have shown that as the temperature increases, the number of volatile substances gradually decreases, which indicates that high pressure inhibits the production of volatiles. In addition, aromatic hydrocarbons in pyrolysis volatile substances dominate, and as the pyrolysis temperature increases, their content gradually increases. The volatile substances transform towards low carbon number compounds with the increment of temperature.