Breakthrough analysis is a powerful technique for determining the adsorption capacity of a material under flow conditions. Breakthrough analysis allows users to precisely control temperature, pressure, and gas flowrates. This allows users to mimic process conditions and analyze adsorbates under conditions similar to those found in a production plant.
Zeolite 13X is a commercially available alumino-silicate material that has been thoroughly studied in the fields of adsorption and catalysis. Zeolite 13X has shown adsorption potential for a variety of substances including carbon dioxide and water vapor. Carbon dioxide adsorption is gaining increasing interest due to concerns regarding its impact on global warming. This application note will examine the carbon dioxide adsorption performance of Zeolite 13X in dry and humid (60%) conditions.
Breakthrough analysis is a powerful technique for determining the adsorption capacity of a material under flow conditions. Breakthrough analysis allows users to precisely control temperature, pressure, and gas flowrates. This allows users to mimic process conditions and analyze adsorbates under conditions similar to those found in a production plant.
Zeolite 13X is a commercially available alumino-silicate material that has been thoroughly studied in the fields of adsorption and catalysis. Zeolite 13X has shown adsorption potential for a variety of substances including carbon dioxide and water vapor. Carbon dioxide adsorption is gaining increasing interest due to concerns regarding its impact on global warming. This application note will examine the carbon dioxide adsorption performance of Zeolite 13X in dry and humid (60%) conditions.
Zeolite 13X is a standard reference material that was obtained in pelletized form. The pellets were of sufficient size such that they could be analyzed as-is in the breakthrough system. A stainlesssteel sample column was first packed with a pinch of quartz wool to ensure that the zeolite 13X remained in the furnace’s ideal heating zone. Roughly 400 mg of zeolite 13X was then added to the sample column. The sample column was then loaded into the BreakThrough Analyzer (BTA) and activated under nitrogen flow at 100°C for 2 hours followed by 200°C for an additional 10 hours. After activation the sample was cooled to the analysis temperature of 30°C.
Dry CO2 breakthrough analysis was conducted on zeolite 13X using a flowrate of 10 ml/min nitrogen, 10 ml/min CO2, and 1 ml/min He. Following breakthrough, the sample was reactivated under nitrogen flow for 2 hours. This procedure was repeated until 5 breakthrough curves were collected.
Humid CO2 breakthrough analysis was conducted using a similar procedure as was stated above. Breakthrough analysis was conducted using a flowrate of 7.4 ml/min dry nitrogen, 2.6 ml/min humid nitrogen, 10 ml/min humid CO2, and 1 ml/min dry He. Reactivation conditions were the same and a total of 5 breakthrough curves were collected.
Please download to read more.