非晶态合金助剂在苯甲酸加氢中的工业应用

Commercial Application of an Amorphous Alloy Promoter(SRNA-5) in the Hydrogenati on of Benzoic Acid

针对CO引起Pd/C催化剂活性的降低开发了非晶态合金甲烷化助剂,部分恢复了Pd/C催化剂的活性;通过增加旋液分离器和磁分离器,开发了以Pd/C催化剂和非晶态合金助剂为"复合"催化剂的苯甲酸加氢改进工艺。助剂结合新工艺已在工业装置上投入使用,取得良好的经济效益。工业应用结果表明,结合甲烷化助剂的新工艺有效解决了原工艺催化剂活性低、失活快、催化剂消耗量大的缺点。

A novel amorphous alloy catalyst for methanation was developed. The CO content in the vent gas could be greatly reduced by adding CO methanation promoter SRNA-5 to the hydrogenation system. An improved process had been revamped by adding hydraulic cyclone and magnetic separator. The promoter and new process have been applied industrially with substantial economic benefits. The improved process with complex catalyst could overcome conventional technical shortcomings of benzoic acid hydrogenation of low activity of Pd/C catalyst,fast deactivation and high catalyst consumption.