Synthesis of DME by CO2 hydrogenation over La2O3-modified CuO-ZnO-ZrO2/HZSM-5 catalysts | Zendy

Yajing Zhang | Zendy; Yu Zhang | Zendy; Fu Ding | Zendy; Kangjun Wang | Zendy; Xiaolei Wang | Zendy; Baojin Ren | Zendy; Jing Wu | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Synthesis of DME by CO2 hydrogenation over La2O3-modified CuO-ZnO-ZrO2/HZSM-5 catalysts

Author(s) -

Yajing Zhang,

Yu Zhang,

Fu Ding,

Kangjun Wang,

Xiaolei Wang,

Baojin Ren,

Jing Wu

Publication year - 2016

Publication title -

chemical industry and chemical engineering quarterly

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.189

H-Index - 26

eISSN - 2217-7434

pISSN - 1451-9372

DOI - 10.2298/ciceq150711005z

Subject(s) - catalysis , dimethyl ether , x ray photoelectron spectroscopy , selectivity , desorption , inorganic chemistry , ammonia , temperature programmed reduction , oxalate , chemistry , materials science , adsorption , chemical engineering , organic chemistry , engineering

A series of La2O3-modified CuO-ZnO-ZrO2/HZSM-5 catalysts were prepared by an oxalate co-precipitation method. The catalysts were fully characterized by X-ray diffraction (XRD), N2 adsorption-desorption, hydrogen temperature pro-grammed reduction (H2-TPR), ammonia temperature programmed desorption (NH3-TPD), and X-ray photoelectron spectroscopy (XPS) techniques. The effect of the La2O3 content on the structure and performance of the catalysts was thoroughly investigated. The catalysts were evaluated for the direct synthesis of dimethyl ether (DME) from CO2 hydrogenation. The results displayed that La2O3 addition enhanced catalytic performance, and the maximal CO2 conversion (34.3%) and DME selectivity (57.3%) were obtained over the catalyst with 1% La2O3, which due to the smaller size of Cu species and a larger ratio of Cu+/Cu

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research