Enhanced carbon dioxide hydrate formation kinetics in a fixed bed reactor filled with metallic packing
Abstract
In this fundamental work, two nonporous metallic (SS-316) mesh arrangements having high thermal conductivity compared to silica sand and silica gel were used as a packing material in a fixed bed setup for faster hydrate growth kinetics. Induction time and kinetics of carbon dioxide hydrate formation was investigated at 3.0 MPa and 274.65 K. An anionic surfactant, 1 wt% sodium dodecyl sulfate (SDS) was used as a kinetic promoter in all the experiments. Significantly higher gas uptake rate of 115 mol min-1 m-3 and water to hydrate conversion of 50% was achieved in an hour of hydrate formation with metallic packing in the presence of SDS. Amount of CO2 gas captured per mass/volume of packing material was significantly higher for metallic packing compared to silica sand and silica gel, which is an important parameter for evaluating a hydrate crystallization process using fixed bed.
- Publication:
-
Chemical Engineering Science
- Pub Date:
- January 2015
- DOI:
- 10.1016/j.ces.2014.09.019
- Bibcode:
- 2015ChEnS.122...78K
- Keywords:
-
- Gas hydrate;
- Carbon dioxide;
- Kinetics;
- Packed bed;
- Sodium dodecyl sulfate