academic article

• Clinoptilolites for Nitrogen/Methane Separation .  Chemical Engineering Science .  59:2407-2417. 2004
• Partially Calcined Gismondine Type Silicoaluminophosphate SAPO-43: Isopropylamine Elimination and Separation of Carbon Dioxide, Hydrogen Sulfide, and Water .  Langmuir.  19:2193-2200. 2003