We herein report on the adaptation and deployment of a compact and easy-to-use mass spectrometer for online monitoring of amines in industrial flue gas at ppb to ppm levels. The use of ammonia as a source gas in proton-transfer-reaction mass spectrometry (PTR-MS) greatly simplifies the detection of amines, making it possible to use a low-end commercial instrument version (PTR-QMS 300) for the measurements. We characterized the analytical performance of the instrument (sensitivity, limit of detection, precision, matrix effects) for nine solvent amines (monoethanolamine, dimethylaminoethanol, aminomethylpropanol, methyldiethanolamine, diglycolamine, piperazine, aminoethylpiperazine, methylpiperazine, N-(2-hydroxyethyl)piperazine) and three degradation amines (methylamine, dimethylamine, trimethylamine). The new analyzer was tested and validated in side-by-side measurements with established emission monitoring techniques at the Technology Centre Mongstad (TCM) in Norway. After validation, the instrument was permanently installed on top of the absorber tower to deliver real-time amine emission data to the plant information management system.

我们在此报告了一种紧凑易用的质谱仪的适应性和部署情况，该质谱仪用于在线监测工业烟气中ppb到ppm级的胺。在质子转移反应质谱法（PTR-MS）中使用氨作为原料气极大地简化了胺的检测，从而可以使用低端的商用仪器版本（PTR-QMS 300）进行测量。我们表征了仪器对九种溶剂胺（单乙醇胺，二甲基氨基乙醇，氨基甲基丙醇，甲基二乙醇胺，二甘醇胺，哌嗪，氨基乙基哌嗪，甲基哌嗪，N-（2-羟乙基）哌嗪）的分析性能（灵敏度，检测限，精密度，基质效应）和三种降解胺（甲胺，二甲胺，三甲胺）。在挪威Mongstad技术中心（TCM），已建立的排放监测技术对新的分析仪进行了并排测试，并进行了验证。验证之后，该仪器将永久安装在吸收塔的顶部，以将实时的胺排放数据传送至工厂信息管理系统。