کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
207304 | 461213 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Preparation of CuIY catalyst using CuCl2 as precursor for vapor phase oxidative carbonylation of methanol to dimethyl carbonate Preparation of CuIY catalyst using CuCl2 as precursor for vapor phase oxidative carbonylation of methanol to dimethyl carbonate](/preview/png/207304.png)
CuIY catalyst was prepared by heating the mixture of CuCl2 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 °C to 500 °C, the CuCl2 of the CuCl2 and acidic Y zeolite mixture sample decompose to CuCl and Cl2 gas, then the produced CuCl reacted with the Brønsted acid center H+ of Y zeolite to form CuIY catalyst by the solid-state ion-exchanged reaction. The amount of ion-exchanged CuI in the CuIY catalyst reached the maximum of 0.1 mol/g when the heating temperature was 650 °C, and the catalyst exhibited the best catalytic activity, the conversion of methanol (CMeOH), the selectivity and the space–time yield of dimethyl carbonate (SDMC and STY) reached 4.36%, 74.55% and 97.32 mg/(g h), respectively.
Journal: Fuel - Volume 89, Issue 7, July 2010, Pages 1339–1343