Chemical Research in Chinese Universities ›› 2022, Vol. 38 ›› Issue (4): 1083-1088.doi: 10.1007/s40242-022-1425-2

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Functionalized Hierarchical ZSM-5 Zeolites for the Viscosity Reduction of Heavy Oil at Low Temperature

XIAO Peiwen1,2, LI Hui3, WANG Pingmei1,2, LIU Bolun3, JING Wendan3, HE Lipeng1,2, WANG Runwei3, HAN Xue1,2, ZHANG Zongtao3, QIU Shilun3, LUO Jianhui1,2   

  1. 1. Research Institute of Petroleum Exploration &Development, PetroChina, Beijing 100083, P. R. China;
    2. Key Laboratory of Nano Chemistry(KLNC), China National Petroleum Corporation(CNPC), Beijing 100083, P. R. China;
    3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2021-10-22 Revised:2021-11-01 Online:2022-08-01 Published:2022-07-01
  • Contact: ZHANG Zongtao E-mail:zzhang@jlu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China(No.21771081), the Chang Bai Mountain Scholars Program, China (No.440020031182), the Provincial Major Project, China(No.20180101001JC), and the PetroChina Scientific Research and Technology Development Project, China(Nos.2018A-0907, 2020D-5006-82).

Abstract: Herein, we propose a novel approach to reduce the viscosity of heavy oil by functional hierarchical CTMS-ZSM-5-PTMS zeolites. CTMS-ZSM-5-PTMS zeolites synthesized by asymmetric modification and selective alkali etching can reduce the viscosity of heavy oil through adsorbing asphaltenes. This method can reduce the viscosity of heavy oil from hundreds of thousands mPa·s to about ten thousand mPa·s. The work provides an economical and environmentally friendly candidate for heavy oil viscosity reduction under low-temperature conditions.

Key words: Heavy oil, Viscosity, Hierarchical ZSM-5 zeolite