| 1. | Concerning sulfur deposition , the carbonaceous matter deposition and the sulfuric acid salinization due to exterior factors , the measures such as sulfur removal , coke burning and reduction operation can be taken to prolong the service life of the catalyst
对于因外部因素硫沉积、含碳物质沉积和硫酸盐化原因引起的催化剂活性衰退可分别采取除硫、烧炭和还原操作方法恢复其活性，延长催化剂的使用寿命。 |
