超高灵敏度色谱仪分析甲醇中三甲胺

MTP装置甲醇制丙烯工艺采用的是鲁奇MTPROP-1沸石类型催化剂,该催化剂要求入塔介质中三甲胺(TMA)的含量小于50×10-9,否则将会引起催化剂的中毒而使活性降低。生产的甲醇中TMA含量一般为30×10-9~500×10-9,为了降低甲醇中的TMA含量.

滕州市浩瀚色谱仪器技术服务有限公司，建立了工业甲醇中痕量三甲胺(trim ethylamine TMA)的超高灵敏度气相色谱分析方法,使用测定范围10~500μg/kg,线性相关系数99.8%,加标回收率97.3%~99.7%。方法采用柱头进样(on-column injection)方式,解决了分流/不分流进样口衬管对样品的吸附问题,操作简单、高效、快速,满足工业甲醇中痕量TMA的检测要求,实现了对甲醇原料的质量监控,为醋酸生产操作提供了生产控制指标。




The MTPROP-1 zeolite type catalyst is used in the MTP plant methanol process. The catalyst requires that the content of trimethylamine (TMA) in the tower medium is less than 50 × 10-9, otherwise it will cause the poisoning of the catalyst to reduce the activity The Production of methanol in the TMA content is generally 30 × 10-9 ~ 500 × 10-9, in order to reduce the TMA content in methanol.

Tengzhou City, the vast chromatographic equipment Technology Co., Ltd., the establishment of industrial methanol trace trimethylamine (trimethylamine TMA) ultra-high sensitivity gas chromatography analysis using the determination of the range of 10 ~ 500μg / kg, linear correlation coefficient of 99.8% The recoveries were 97.3% ~ 99.7%. The method uses the on-column injection method to solve the problem of the adsorption of the split / splitless inlet liner to the sample, which is simple, efficient and fast to meet the requirement of trace TMA in industrial methanol. The quality of methanol raw materials for the production of acetic acid production operations to provide a production control indicators.