Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (8): 1939-1944.doi: 10.1016/j.cjche.2019.01.023

• Energy, Resources and Environmental Technology • Previous Articles     Next Articles

Production of aryl oxygen-containing compounds from catalytic pyrolysis of bagasse lignin over LaTixFe1-xO3

Haiying Wang1,2, Hongjing Han1,2, Enhao Sun3, Yanan Zhang1,2, Jinxin Li1,2, Yanguang Chen1,2, Hua Song1,2, Hongzhi Zhao1,2   

  1. 1 College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China;
    2 Provincial Key Laboratory of Oil & Gas Chemical Technology, Daqing 163318, China;
    3 Daqing Petrochemical Research Center, PetroChina, Daqing 163000, China
  • Received:2018-11-02 Revised:2019-01-08 Online:2019-08-28 Published:2019-11-16
  • Contact: Yanguang Chen
  • Supported by:
    Supported by the National Natural Science Foundation of China, China (51674089), Heilongjiang Provincial Science Fund for Distinguished Youth Scholar (JC2018002), Heilongjiang Postdoctoral Scientific Research Development Fund of China (LBH-Q16037), the Youth Fund of Northeast Petroleum University (2018QNL-17) and Postgraduate Innovative Research Projects of Northeast Petroleum University (YJSCX2017-014NEPU).

Abstract: A new approach, named production of aryl oxygen-containing compounds from the catalytic pyrolysis of bagasse lignin (BL) over perovskite oxide, was proposed. A series of LaTixFe1-xO3 (LTF-x) samples were prepared by the solid state reaction method. The crystal phase and morphology of LTF-x were characterized by XRD and SEM respectively. Catalytic pyrolysis performance of LTF-x was performed by TG-DTG and the distribution patterns of gaseous, liquid and solid products from BL was investigated using a fixed-bed micro-reactor. The optimal reaction conditions were determined:the pyrolysis temperature was 600℃, the mass ratio of mBL:mLTF-0.2 was 3:1, the velocity of carrier gas was 100 ml·min-1. The gaseous products were mainly composed of CO2, CO, CH4 and CnHm (n=2-4, m=2n + 2 or m=2n). The main aryl oxygen-containing compounds in liquid products were phenolics, guaiacols, syringols and phenylates, the rest were benzenes, furans, esters and carboxylic acid. The total contents of aryl oxygencontaining compounds were from 62% up to more than 72% under the action of the perovskite. Moreover, the LTF-0.2 sample had nice regenerability.

Key words: Bagasse lignin, Perovskite, Catalytic pyrolysis, Aryl oxygen-containing compounds