CAJ | 학술논문

为了提高环己烯的选择性，以铝溶胶为前躯体，采用共沉淀法制备了Al2O3-ZrO2复合载体。以氯化钌为前躯体，硼氢化钠化学还原法分别制备了 Ru-Zn-B/Al2O3和 Ru-Zn-B/Al2O3-ZrO2催化剂，并对这两种催化剂进行了苯选择性加氢评价研究。结果表明：ZrO2的引入显著提高了环己烯选择性，当Zr与Al物质的量比为0.1时。环己烯选择性最高。载体的焙烧温度对苯选择加氢的选择性和活性有重要影响，最佳焙烧温度为600℃。
위료제고배기희적선택성，이려용효위전구체，채용공침정법제비료Al2O3-ZrO2복합재체。이록화조위전구체，붕경화납화학환원법분별제비료 Ru-Zn-B/Al2O3화 Ru-Zn-B/Al2O3-ZrO2최화제，병대저량충최화제진행료분선택성가경평개연구。결과표명：ZrO2적인입현저제고료배기희선택성，당Zr여Al물질적량비위0.1시。배기희선택성최고。재체적배소온도대분선택가경적선택성화활성유중요영향，최가배소온도위600℃。
For increasing selectivity of cyclohexene in the selective hydrogenation of benzene Al2O3-ZrO2 composite carrier was first prepared by a coprecipitation method using aluminum sol as a precursor and then Ru-Zn-B/Al2O3 and Ru-Zn-B/Al2O3-ZrO2 catalysts were prapared by sodium borohydride chemical reduction method using RuCl3 as a precursor. The performance of two catalysts was evaluated by selective hydrogenation of benzene in autoclave reactor. The results showed that ZrO2 was favorable to increase the selectivity of cyclohexene on Ru-Zn-B/Al2O3 catalyst obviously, the highest selectivity of cyclohexene occured when the Zr/Al atomic ratio was 0.1. Calcining temperature of carrier had important effect on cyclohexene selectivity. The optimal calcination temperature was 600 ℃.