Abstract
Carbon spheres were produced from mild hydrothermal reaction of biomass lactose, followed by carbonization with low-activation temperatures (400°C). The Brunauer-Emmett-Teller (BET)-specific surface area of carbon at optimum condition was 403 m2/g. The resultant carbon shows good performance in preferential adsorption of CO2 to CH4 below 50 kPa at 293 K. The results of the isosteric enthalpies of adsorption for different gases on prepared carbon indicate mildly heterogeneous surfaces. The relatively good performance of the resultant carbon in kinetics indicates its potential for low-pressure kinetic separation of carbon dioxide from carbon dioxide and methane mixture at room temperature.
Original language | English |
---|---|
Pages (from-to) | 581-587 |
Number of pages | 7 |
Journal | Environmental Progress and Sustainable Energy |
Volume | 33 |
Issue number | 2 |
DOIs | |
Publication status | Published - Jul 2014 |
Externally published | Yes |
Keywords
- activated carbon
- gas separation
- hydrothermal reaction
- lactose
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- General Chemical Engineering
- Renewable Energy, Sustainability and the Environment
- Water Science and Technology
- Waste Management and Disposal
- General Environmental Science