采用浸渍法制备了四氯化锡为主要活性组分的无汞催化剂，在固定床反应器上评价了该催化剂活性。结果表明，以四氯化锡为主要活性组分的催化剂中加入助剂可明显提高稳定性，催化剂中加入稀土元素稳定性最高，多组分复合催化剂活性和稳定性明显高于单一和双组分催化剂。筛选制备了SnCl₄-CuCl₂-BiCl₃-CeCl₃/C催化剂，在反应温度为120℃，空速为90 h^-1，V（HCl）/V（C₂H₂）=1.1的条件下进行正交优化，结果表明，22% SnCl₄/6% CuCl₂/10% BiCl₃/2% CeCl₃/C催化剂初始转化率可达95.1%，选择性为99.5%。

The mercury-free catalyst with tin tetrachloride as the main active component is prepared by impregnation method, and its activity is evaluated on a fixed bed reactor. The results show that the addition of auxiliary can help to improve the stability of the catalyst with tin tetrachloride as the main active component. The catalyst added with rare earth elements has the highest stability. The activity and stability of the multi-component composite catalyst are obviously higher than that of the single component and the two components catalysts. The SnCl₄-CuCl₂-BiCl₃-CeCl₃/C catalyst is prepared through screening. Orthogonal optimization is carried out under the conditions that reaction temperature is 120℃, space velocity is 90 h^-1, and V_HCl/V_C2H2=1.1, and the result indicates that the initial conversion of 22% SnCl₄/6% CuCl₂/10% BiCl₃/2% CeCl₃/C catalyst can reach 95.1% and the selectivity is 99.5%.

熊奇(1993-),男,硕士研究生,主要研究方向为新型反应器与绿色化学工艺,977634990@qq.com。