A nickel phosphide hydrodeoxygenation catalyst (Ni2P-O/MCM-41) was prepared using a new synthetic method. The as-prepared catalyst was evaluated in the hydrodeoxygenation of benzofuran, and the effects of reaction temperature, pressure, and the H2/liquid ratio were investigated. A pseudo first-order model was employed to describe the reaction kinetics of benzofuran hydrodeoxygenation over the Ni2P-O/MCM-41 catalyst. The reaction rate constants (k1–k5) at different temperatures were determined according to this model. At 533 K, the conversion of 2-ethylphenol in to ethylbenzene began to increase dramatically, and the yield of O-free product, ethylcyclohexane, started to increase rapidly. At 573 K, 3.0 MPa, and a H2/liquid ratio of 500 (V/V), the conversion of benzofuran over Ni2P-O/MCM-41 reached 93%, and the combined yield of O-free products was 91%. Contact time analysis indicated that demethylation was not favored over the Ni2P-O/MCM-41 catalyst.

中文翻译：

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Ni2P-O/MCM-41催化剂上苯并呋喃加氢脱氧的反应性和动力学研究

采用新的合成方法制备了磷化镍加氢脱氧催化剂（Ni2P-O/MCM-41）。对制备的催化剂在苯并呋喃加氢脱氧反应中进行了评价，考察了反应温度、压力和水/液比的影响。采用拟一级模型来描述苯并呋喃加氢脱氧在 Ni2P-O/MCM-41 催化剂上的反应动力学。根据该模型确定不同温度下的反应速率常数（k1-k5）。在 533 K 时，2-乙基苯酚转化为乙苯的转化率开始急剧增加，无氧产物乙基环己烷的产率开始迅速增加。在 573 K、3.0 MPa 和 500 (V/V) 的 H2/液体比下，苯并呋喃在 Ni2P-O/MCM-41 上的转化率达到 93%，无O产物的综合收率为91%。接触时间分析表明，与 Ni2P-O/MCM-41 催化剂相比，脱甲基作用更不利。