The Effect of Air on Molecular Composition of Soluble Species from Supercritical Methanolysis of Xilinhaote Lignite Based on Nonparametric Statistics

摘要

Xilinhaote lignite (XL) was depolymerized in supercritical methanol at 310 degrees C with or without air. According to gas chromatography/mass spectrometric analysis, the resulting soluble species (SSs) can be classified into alkanes, alkenes, arenes, alkanols, hydroxybenzenes, methoxybenzenes, ketones, esters, nitrogen-containing organic compounds, sulfur-containing organic compounds, and other compounds. The p-value of nonparametric statistics demonstrates that the group components and molecular mass distribution of the SSs from supercritical methanolysis of XL without and with air are not significantly different.