高频红外碳硫分析仪在催化剂碳含量分析中的应用

High frequency infrared ray carbon-sulfur analyzer in analysis of carbon content in the catalyst

甲醇制烯烃反应过程中产生的副产物焦炭会覆盖SAPO-34的酸性中心、堵塞分子筛内的通道,造成催化剂失活,因此需要随时监测催化剂中的碳含量,以便及时再生恢复其活性。目前催化剂碳含量常用的测定方法有高频红外碳硫仪法、紫外分光光度计法、热重分析法。相较其他方法,高频红外碳硫分析仪法具有固体可直接进样分析,减少转化过程中碳、硫元素含量损失,红外检测准确性高,操作简便等优点。

Occurring in the process of methanol to olefins reaction by-products coke will cover SAPO - 34 acid center,plug in the molecular sieve,catalyst deactivation,so you need to supervise the catalyst of carbon content,in order to timely regeneration restore its activity.At present,the method of determination of carbon content of catalyst has high frequency infrared ray carbon-sulfur meter,ultraviolet spectrophotometer and thermogravimetric analysis.Compared with other methods,the high frequency infrared ray carbon-sulfur analyzer method with solid sample analysis directly,reducing the loss of carbon,sulfur content in the transformation process,infrared detection accuracy is high,easy to operate,etc.