Adsorbent storage

If packed columns or adsorbents removed from columns are to be stored for a period of time, the adsorbent should be carefully washed and then equilibrated 

Trifluoroacetic acid + isopropanol (0.1% TFA)/IPA 40 60 (v/v) viscous -rate reduce flow 

Triethylamine + isopropanol 40 60 (v/v), adjust 0.25 N phosphoric with triethylamine before mixing acid to pH 2.5 

Aqueous sodium chloride, sodium phosphate or sodium sulphate 0.5—1.0 M (sodium phosphate pH 7)  

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Cook, T. L., Komodromos, C., Quinn, D. F. and Ragan, S., Adsorbent storage for natural gas vehicles. In Carbon Materials for Advanced Technologies, ed. 

J. Wegrzyn, M. Gurevich, Adsorbent storage of natural gas, Appl. Energy 55 (1996) 71-83. 

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