Analytical pyrolysis-comprehensive two-dimensional gas chromatography/mass spectrometry (Py-GC × GC/MS) was used for the on-line analysis of pyrolysis vapors. Bio-based activated carbon (B-AC) catalysts were used to produce highly selectivity valuable chemicals such as furans and phenols. B-AC catalyst was subjected to several characterizations to investigate the physicochemical properties of the catalyst and its relationship with products distribution. The results showed that B-AC catalyst showed high catalytic activity and selectivity for the production of furans and phenols under mild catalytic temperature (350 °C). Furans are mainly from pyrolysis of cellulose and hemicellulose, while phenols are mainly from pyrolysis of lignin. Methylfurans and phenol were dominated compounds. With the use of B-AC, the relative peak area of methylfurans increased from 6.58% to 39.35% (cellulose), 0%–27.79% (xylan), 0.54%–26.82% (corncob); the relative peak area of phenol increased from 6.31% to 53.83% (lignin) and 2.77%–12.34% (corncob). A significant reduction of aldehydes, ketones, and sugars was also observed over B-AC catalyst. The higher total acidity (weak acidity and Lewis acidity) of B-AC favored the formation of 2-methylfuran and phenol.

分析热解-综合二维气相色谱/质谱法（Py-GC×GC / MS）用于热解蒸气的在线分析。生物基活性炭（B-AC）催化剂用于生产具有高选择性的有价值的化学品，例如呋喃和苯酚。对B-AC催化剂进行了几种表征，以研究催化剂的理化性质及其与产物分布的关系。结果表明，B-AC催化剂在温和的催化温度（350℃）下对呋喃和苯酚的生产具有较高的催化活性和选择性。呋喃主要来自纤维素和半纤维素的热解，而酚类主要来自木质素的热解。甲基呋喃和苯酚是主要化合物。使用B-AC，甲基呋喃的相对峰面积从6.58％增加到39.35％（纤维素），0％–27.79％（木聚糖），0.54％–26.82％（玉米芯）；苯酚的相对峰面积从6.31％增加到53.83％（木质素）和2.77％–12.34％（玉米芯）。与B-AC催化剂相比，醛，酮和糖类也明显减少。B-AC较高的总酸度（弱酸度和路易斯酸度）有助于形成2-甲基呋喃和苯酚。