A Simple Technique for the Measurement of H2 Sorption Capacities
| Autor: | John M. Zielinski, Michael F. Kimak, and Peter McKeon |
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| Rok vydání: | 2006 |
| Předmět: |
Imagination
Equation of state Chemical substance Materials science General Chemical Engineering media_common.quotation_subject Analytical chemistry Sorption General Chemistry Industrial and Manufacturing Engineering law.invention Search engine Adsorption Magazine law medicine media_common Activated carbon medicine.drug |
| Zdroj: | Industrial & Engineering Chemistry Research. 46:329-335 |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/ie060700y |
| Popis: | An accurate (and low-cost) experimental technique has been developed to screen the effectiveness of an adsorbent in improving gas storage capacity within a pressurized vessel. Specifically, the capsule technique is shown to be effective in directly measuring the total H2 contained within a pressurized vessel and can be used to evaluate the amount of gas in the free space and adsorbed on the solid, that is, a sorption isotherm. The capsule technique was benchmarked by measuring isotherm data for CH4 on an activated carbon sample and was then subsequently evaluated for use with H2. The capsule data are in excellent agreement with the total storage capacities expected from calculations using equation of state information. In addition, H2 isotherm data from the sorption capsule are found to be within 1% of values obtained from a more sophisticated differential pressure adsorption unit (DPAU). Conditions for when the adsorbent aids or hinders storage are also discussed in terms of the 2010 DOE H2 storage targets. |
| Databáze: | OpenAIRE |
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