SO_4~(2-)-Fe_2O_3/Hβ增强酸催化剂上合成乙酸丁酯 |
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引用本文: | 王廷吉,赵新强,张秉常,丛津生.SO_4~(2-)-Fe_2O_3/Hβ增强酸催化剂上合成乙酸丁酯[J].石油化工,1998(3). |
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作者姓名: | 王廷吉 赵新强 张秉常 丛津生 |
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作者单位: | 河北工业大学化工系 |
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基金项目: | 河北省高校博士科研资助基金 |
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摘 要: | 将超强酸中心引入Hβ沸石表面,制备出具有增强酸性的SO2-4-Fe2O3/Hβ催化剂,并用于乙酸与正丁醇的酯化反应。采用数学模拟方法定量表征该催化剂的酸强度分布。建立了合成乙酸丁酯反应动力学模型。讨论不同类型沸石、氧化物改性对酯化反应性能的影响及表面酸性与酯化性能的关系。
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关 键 词: | Hβ沸石 乙酸丁酯合成 酸强度分布 动力学 |
Synthesis of n-Butyl-Acetate-Catalyzed by SO_4~(2-) Fe_2O_3/Hβ Catalyst |
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Abstract: | O_4~(2-)Fe_2O_3/Hβ catalyst with enhanced acid properties was prepared by introducingSO_4~(2-) Fe_2O_3superacid site to the surface of Hβ zeolite.The catalyst was used for the esterification of n-butyl-alcohol with acetic acid.The kinetics model for the synthesis of n butyl acetate was established.The distribution of acid sites on Hβ,Fe_2O_3/Hβ and SO_4~(2-) Fe_2O_3/hβ catalysts was quantitatively charaterized by mathematical simulation. |
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Keywords: | Hβ-zeolite butyl-acetate synthesis distribution of acid sites kinetics |
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