能源化学(英文版)

能源化学(英文) ›› 2019, Vol. 28 ›› Issue (2): 8-16.DOI: 10.1016/j.jechem.2018.01.016

• Preface • 上一篇    下一篇

Ultra-deep desulfurization by reactive adsorption desulfurization on copper-based catalysts

Yaqing Liu, Hongying Wang, Jinchong Zhao, Yunqi Liu, Chenguang Liu   

  1. State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation(CNPC), China University of Petroleum, Qingdao 266580, Shandong, China
  • 收稿日期:2017-11-15 修回日期:2018-01-19 出版日期:2019-02-15 发布日期:2019-02-15
  • 通讯作者: Yunqi Liu, Chenguang Liu
  • 基金资助:

    This work has been financially support by the National Natural Science Foundation (Grants No. 21176258;21676300) and the Fundamental Research Funds for the Central Universities (Grants No. 15CX06051A).

Ultra-deep desulfurization by reactive adsorption desulfurization on copper-based catalysts

Yaqing Liu, Hongying Wang, Jinchong Zhao, Yunqi Liu, Chenguang Liu   

  1. State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation(CNPC), China University of Petroleum, Qingdao 266580, Shandong, China
  • Received:2017-11-15 Revised:2018-01-19 Online:2019-02-15 Published:2019-02-15
  • Contact: Yunqi Liu, Chenguang Liu
  • Supported by:

    This work has been financially support by the National Natural Science Foundation (Grants No. 21176258;21676300) and the Fundamental Research Funds for the Central Universities (Grants No. 15CX06051A).

摘要： In this paper, a novel copper-based catalyst for FCC gasoline improving the ability of removal the sulfur and avoiding the loss of the octane number from olefin saturation by reactive adsorption desulfurization (RADS) was investigated. The series of Cu/ZnO-Al2O3 catalysts were characterized by X-ray powder diffraction (XRD), N2 adsorption analysis and temperature-programmed reduction (TPR) studies, X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM) and transmission electron microscopy (TEM). The experiment results showed that the catalysts had an optimum desulfurization ability with copper loading 6 wt%, which the sulfur contents of product decreased less than 10 μg/g and olefin contents decreased from 16.19% to 14.14% for the long period operation. The appropriate Cu loading content could lead to the high active and low apparent activation energy (Ea). Therefore, the Cu-based catalyst may become a novel catalyst for second-generation for reactive adsorption desulfurization, which achieves the high desulfurization active and low olefins saturation to satisfy the upgrading the product.

关键词: Cu/ZnO-Al2O3, Desulfurization activity, Octane number, Olefins saturation, Stability

Abstract: In this paper, a novel copper-based catalyst for FCC gasoline improving the ability of removal the sulfur and avoiding the loss of the octane number from olefin saturation by reactive adsorption desulfurization (RADS) was investigated. The series of Cu/ZnO-Al2O3 catalysts were characterized by X-ray powder diffraction (XRD), N2 adsorption analysis and temperature-programmed reduction (TPR) studies, X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM) and transmission electron microscopy (TEM). The experiment results showed that the catalysts had an optimum desulfurization ability with copper loading 6 wt%, which the sulfur contents of product decreased less than 10 μg/g and olefin contents decreased from 16.19% to 14.14% for the long period operation. The appropriate Cu loading content could lead to the high active and low apparent activation energy (Ea). Therefore, the Cu-based catalyst may become a novel catalyst for second-generation for reactive adsorption desulfurization, which achieves the high desulfurization active and low olefins saturation to satisfy the upgrading the product.

Key words: Cu/ZnO-Al2O3, Desulfurization activity, Octane number, Olefins saturation, Stability