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Preparation of Cu~IY catalyst using CuCl_2 as precursor for vapor phase oxidative carbonylation of methanol to dimethyl carbonate

机译：以CuCl_2为前驱体制备Cu〜IY催化剂，用于甲醇气相氧化羰基化为碳酸二甲酯

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摘要

Cu~IY catalyst was prepared by heating the mixture of CuCl_2 and acidic Y zeolite under flowing nitrogen and characterized by TG/DTG, XRD and elementary analysis techniques. The experimental result indicate that when the heating temperature was from 350 ℃ to 500 ℃, the CuCl_2 of the CuCl_2 and acidic Y zeolite mixture sample decompose to CuCl and Cl_2 gas, then the produced CuCl reacted with the Bronsted acid center H~+ of Y zeolite to form Cu~IY catalyst by the solid-state ion-exchanged reaction. The amount of ion-exchanged Cu~I in the Cu'Y catalyst reached the maximum of 0.1 mol/g when the heating temperature was 650 ℃, and the catalyst exhibited the best catalytic activity, the conversion of methanol (C_(MeOH)). the selectivity and the space-time yield of dimethyl carbonate (S_(DMC) and STY) reached 4.36%, 74.55% and 97.32 mg/(g h), respectively.
机译：通过在流动的氮气下加热CuCl_2和酸性Y沸石的混合物来制备Cu〜IY催化剂，并通过TG / DTG，XRD和元素分析技术对其进行表征。实验结果表明，当加热温度为350℃至500℃时，CuCl_2和酸性Y沸石混合物样品中的CuCl_2分解为CuCl和Cl_2气体，然后生成的CuCl与Y的布朗斯台德酸中心H〜+反应。沸石通过固态离子交换反应形成Cu〜IY催化剂。加热温度为650℃时，Cu'Y催化剂中离子交换Cu〜I的量最大为0.1 mol / g，催化剂表现出最好的催化活性，甲醇（C_（MeOH））的转化率最高。 。碳酸二甲酯（S_（DMC）和STY）的选择性和时空产率分别达到4.36％，74.55％和97.32 mg /（g h）。

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  • 来源
    《Fuel》 |2010年第7期|p.1339-1343|共5页
  • 作者

    Li Zhong; Wang Ruiyu; Zheng Huayan; Xie Kechang;

  • 作者单位

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

    rnKey Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China;

    rnKey Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China;

    rnKey Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fuel additive; methanol; dimethyl carbonate; Cu~IY catalyst; CuCl_2;

    机译：燃料添加剂;甲醇碳酸二甲酯Cu〜IY催化剂;氯化铜_2;

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