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Technology and Engineering
- ISSN: 2333-2581
- Modern Environmental Science and Engineering
Comparison of Two Water Regeneration Strategies for
Activated Carbon Loaded with Hydrogen Sulphide Gas
Luisa Carla Cosarsonas1, Rabee Rustum1, and Susana Garcia2
1. Institute of Infrastructure and Environment, School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Dubai Campus, The United Arab Emirates
2. Centre for Innovation in Carbon Capture and Storage (CICCS), School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom
Abstract: This work compares two different types of water regeneration methods, continuous washing and intermittent washing, that are applied to catalytically enhanced activated carbon previously loaded with hydrogen sulfide gas. The efficiency of the two regeneration methods was evaluated using Thermo Gravimetric Analysis (TGA), Coulorimetric titration using Karl Fisher reagent and apparent density “as is”. The effectiveness of both methods in terms of regenerability, apparent density, and sulphur and organic loading was investigated. Results demonstrated that regeneration of the activated carbon by intermittent washing is more effective than by a continuous washing, as the former was able to remove more sulphur and organic loading from the activated carbon material than the latter, hence retaining its adsorption capacity.
Key words: adsorption, regeneration of activated carbon, thermo gravimetric analysis (TGA), Coulorimetric titration, hydrogen sulphide, odour control
