混合丁烯齐聚Fe(2/3)xNi1-xSO4-P2O5/γ-Al2O3催化剂制备及性能研究

封子艳; 刘雪暖; 李青松; 宁亚南

混合丁烯齐聚Fe_(2/3)xNi_1-xSO₄-P₂O₅/γ-Al₂O₃催化剂制备及性能研究

中国石油大学(华东) 化学工程学院, 山东青岛 266555

详细信息

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刘雪暖, Tel: 0532-86981867; E-mail: lxnuan163@163.com。

中图分类号: TE624.4
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出版历程
- 收稿日期: 2011-02-17
- 刊出日期: 2012-03-31

Preparation of Fe_(2/3)xNi_1-xSO₄-P₂O₅/γ-Al₂O₃ catalyst and its performance in the oligomerization of mixed C₄ olefins

School of and Chemical Engineering, China University of Petroleum(East China), Qingdao 266555, China

摘要

摘要: 浸渍法制备了用于混合丁烯齐聚反应的负载型Fe_(2/3)xNi_1-xSO₄-P₂O₅/γ-Al₂O₃催化剂,在高压微型固定床反应器上考察了催化剂制备参数和反应条件对混合丁烯齐聚反应转化率和目的产物选择性的影响。结果表明,在3.0 MPa、100 ℃、空速为2 h^-1的反应条件下,Fe/Ni原子比为2,Fe担载量为0.7 mmol/g(γ-Al₂O₃)时,用共浸渍法制备的催化剂对混合丁烯齐聚转化率和二聚物选择性分别高达50.7%和52.2%。此外,SO₄^2-同γ-Al₂O₃相互作用对混合丁烯齐聚反应的有效活性中心有重要影响。
- 混合丁烯 /
- 齐聚 /
- 催化剂 /
- 硫酸铁 /
- 硫酸镍
Abstract: Supported Fe_(2/3)xNi_1-xSO₄-P₂O₅/γ-Al₂O₃ catalysts were prepared through impregnation and used in the oligomerization of mixed C₄ olefins; the effect of preparation parameters and reaction conditions on their oligomerization performance was investigated in a high pressure fixed-bed microreactor. The results demonstrated that under 3.0 MPa, 100 ℃ and a volume space velocity of 2 h^-1, the conversion of olefins and selectivity to dimer reach 50.7% and 52.2%, respectively, over the catalyst with a preferable Fe loading of 0.7 mmol/g(γ-Al₂O₃)and Fe/Ni atomic ratio of 2. In addition, it was found that the interaction between γ-Al₂O₃and SO₄^2-plays an important role in the efficiency of active sites.
- mixed C₄ olefins /
- oligomerization /
- catalyst /
- iron sulfate /
- nickel sulfate

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参考文献(5)

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