Production of Aryl Oxygen-Containing Compounds by the Pyrolysis of Bagasse Alkali Lignin Catalyzed by LaM0.2Fe0.8O3 (M = Fe, Cu, Al, Ti) was written by Wang, Haiying;Han, Hongjing;Sun, Enhao;Han, Yejun;Zhang, Yanan;Li, Jinxin;Chen, Yanguang;Song, Hua;Zhao, Hongzhi;Kang, Yue. And the article was included in Energy & Fuels in 2019.Recommanded Product: Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:
A series of LaM0.2Fe0.8O3 (M = Fe, Cu, Al, Ti) samples synthesized by the sol-gel method were used to catalyze the pyrolysis of bagasse alkali lignin (BAL) to produce aryl oxygen-containing compounds The effects of doping metal ions in the B-site of LaFeO3 were investigated by X-ray diffraction, SEM, Brunauer-Emmett-Teller, and X-ray photoelectron spectrometer. Furthermore, the catalytic pyrolysis performances of the perovskites were evaluated by thermogravimetric anal. and the fixed-bed microreactor, and the gaseous and liquid pyrolysis products were analyzed by GC and gas chromatog./mass spectrometry (GC/MS), resp. The results indicated that the perovskites have a cubic crystal phase, porous structure, and large sp. surface area. After doping Cu, Al, and Ti ions in the B-site of perovskites, the grain sizes were refined, the performance of catalyzing BAL pyrolysis was improved, and the yields of liquid pyrolysis products increased by 24.1-39.1%. The selectivities of CO2 and CO in gaseous products decreased by 5.8-16.3 and 26.0-34.8%, resp., which resulted from the inhibition of decarboxylation and decarbonylation. The total selectivities of target products, i.e., aryl oxygen-containing compounds (including phenolics, guaiacols, syringols, and phenylates) obtained from BAL pyrolysis catalyzed using perovskites were all greater than 74 wt %, which was higher than that obtained from the pyrolysis of pure BAL (62 wt %) in the absence of catalyst. After 5 cycles of redox reaction, the perovskite still showed a well-maintained structural and catalytic stability. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Recommanded Product: Ethyl 3-ethoxypropanoate).
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