Effects of water on catalytic performance of Cu+/S2O82-/γ-Al2O3 for oxidative carbonylation of methanol to dimethyl carbonate

ZHENG Hua-yan; LIU Yuan-yuan; DONG Rui-min; MENG Fan-hui; LI Zhong

Volume 41 Issue 01

Jan. 2013

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Article Navigation > Journal of Fuel Chemistry and Technology > 2013 > 41(01): 110-115

ZHENG Hua-yan, LIU Yuan-yuan, DONG Rui-min, MENG Fan-hui, LI Zhong. Effects of water on catalytic performance of Cu+/S2O82-/γ-Al2O3 for oxidative carbonylation of methanol to dimethyl carbonate[J]. Journal of Fuel Chemistry and Technology, 2013, 41(01): 110-115.

Citation:

ZHENG Hua-yan, LIU Yuan-yuan, DONG Rui-min, MENG Fan-hui, LI Zhong. Effects of water on catalytic performance of Cu⁺/S₂O₈^2-/γ-Al₂O₃ for oxidative carbonylation of methanol to dimethyl carbonate[J]. Journal of Fuel Chemistry and Technology, 2013, 41(01): 110-115.

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Effects of water on catalytic performance of Cu⁺/S₂O₈^2-/γ-Al₂O₃ for oxidative carbonylation of methanol to dimethyl carbonate

Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technolgy, Taiyuan 030024, China

Received Date: 2012-04-27
Rev Recd Date: 2012-06-05
Publish Date: 2013-01-31

Abstract

Abstract

Effects of H₂O on the catalyst Cu⁺/S₂O₈^2-/γ-Al₂O₃ of DMC synthesis in slurry reactor were investigated under the conditions of 120℃ and 3.0 MPa. The results showed that the introduction of water into reaction system led to quick catalyst deactivation. The catalysts were characterized by the Elemental Analysis, XRD, DTG, Py-FT-IR and NH₃-TPD. The results showed that active component Cu and CuCl, loading on the surface of S₂O₈^2-/γ-Al₂O₃ support, reacted with O₂ and H₂O, then formed Cu₂(OH)₃Cl which was essentially inactive for oxidative carbonylation of methanol to dimethyl carbonate. The catalyst deactivation rate speeded up with increasing water injection.
- deactivation,
- Cu⁺/S₂O₈^2-/&gamma,
- -Al₂O₃,
- slurry,
- DMC

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References(19)

References

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