Experimental and modeling studies on the solubility of sub‐ and supercritical carbon dioxide (scCO2) in potato starch and derivatives |
| |
| Authors: | Henky Muljana Francesco Picchioni Hero J Heeres Leon PBM Janssen |
| |
| Affiliation: | Department of Chemical Engineering, University of Groningen, Groningen 9747AG, The Netherlands |
| |
| Abstract: | The solubility of CO2 in native potato starch (NPS) and potato starch acetate (SA) at two different temperatures (50°C and 120°C) and various pressures (up to 25 MPa) was determined using a magnetic suspension balance. Within the experimental window, a maximum solubility of 31 mg CO2/gsample for NPS and 79.4 mg CO2/gsample for SA was obtained. The CO2 sorption behavior is highly depending on the temperature and pressure. The solubility data were modeled with the Sanchez Lacombe equation of state (S‐L EOS). The swelling (Sw) values, as predicted using the S‐L EOS, were relatively small and a maximum value of 6.1% was obtained for SA at 25 MPa and 120°C. POLYM. ENG. SCI., 2011. © 2010 Society of Plastics Engineers |
| |
| Keywords: | |
|
|
