Title: Preparation and Characterization of Cu/ZnO/Al_2O_3/ZrO_2 Catalyst Used in Diethanolamine Dehydrogenation
Abstract: Cu/ZnO/Al2O3/ZrO2 catalyst used in diethanolamine dehydrogenation was synthesized via a coprecipitation process with copper nitrate,zinc nitrate,aluminum nitrate and zirconium oxynitrate as reactants,using sodium hydroxide as precipitation agent,and various kinds of copper-based catalyst were characterized by means of physical adsorption(BET) and X-ray diffraction(XRD),and the influence of different ratio of ZnO to Al2O3 in the catalyst was discussed.The results show that Cu/ZnO/Al2O /ZrO2 catalyst into which ZnO and Al2O3 were simultaneously added has a big specific surface area and an amorphous structure.The conversion of diethanolamine was up to 100%,and the yield of iminodiacetic acid was 95.61% under the suitable catalyst conditions of 30% sodium hydroxide,temperature 160 ℃,and pressure 1.0 MPa.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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