ABSDEG - Solvent degradation laboratory

Facility Location
City & country
Trondheim (Norway)
Kolbjørn Hejes vei 1B, 7034
Description & contacts of the access provider
Legal name of organisation
NTNU - Norwegian University of Science and Technology (Norges teknisk-naturvitenskapelige universitet)
Infrastructure contact - Primary contact
Hanna Knuutila
RICC contact - Secondary contact
Morten Grønli
Facility Availability
Unit of access
Availability per year
Minimum 4 weeks
Expected duration of single experiment:
2-5 weeks

Solvent degradation laboratory makes it possible to study fundamental solvent degradation. This installation includes 3 apparatuses. The oxidative degradation in closed-batch reactor is suitable for degradation studies at absorber temperatures (45-60o C) whereas the thermal degradation tests can be done up to 135o C. Additionally with a new screening apparatus for oxidative degradation, it is easy to test inhibitors and effect of metal degradation laboratory has a closed co-operation with analytical laboratory with SINTEF Biotechnology which does most of the analytical work.

State of the art, uniqueness, & specific advantages

The installations TA1.3, TA1.4 and TA1.5 are designed for CO2 capture research. In-house activity based thermodynamic and kinetic models can be used to model the experimental results. The laboratory has a close co-operation with analytical laboratory (SITNEF Biotechnology), which makes it possible to analyze liquid samples for degradation products and amines. Additionally NMR can be used to find the speciation in the liquid.

Scientific Environment

Measurement of thermodynamic data, like VLE and heat of absorption, needed for example in process modelling can be performed. Absorption kinetics including measurement of physical properties is needed for sizing of absorber. Degradation studies will give fundamental understanding of the solvent as well as indicate the solvent make-up costs. Part of experimental apparatuses have been / are used in EU-funded projects like CASTOR, CESAR, DeCarbit, ENGAS, iCAP and HiperCAP. There is a close co-operation with SINTEF Materials and Chemistry and a long history of collaboration with the Department of Thermal Engineering, Tsingua University, Beijing and the Department of Chemical Engineering, University of Austin, Texas through exchange of PhD students and research personnel. In the last 5 years, more than 50 peer reviewed journal publications has been published presenting data from these installations.

selected publications

Sholeh Ma’mun et al. (2007)
Kinetics of the Reaction of Carbon Dioxide with Aqueous Solution of 2- ((2Amino(ethylamino) ethanol”
Ind. Eng. Chem. Res., 46, 385-394
J.Chem Eng (2008)
Hartono A. et al. Solubility of N2O in aqueous solution of Diethylenetriamine
53, 2696-2700
Knuutila, H et al. (1 December 2010)
Kinetics of the reaction of carbon dioxide with aqueous sodium and potassium carbonate solutions. Chemical Engineering Science
Volume 65, Issue 23, Pages 6077-6088.
Luo, X et al. (2012)
Comparative kinetics of carbon dioxide absorption in unloaded aqueous monoethanolamine solutions using wetted wall and string of discs columns.
Chemical Engineering Science; Volum 82. s. 31-43
Kim I. et al. (2009)
Enthalpy of absorption of CO2 with alkanolamine solutions predicted from reaction equilibrium constants
Chem. Eng. Science, 64, pp2027-2038
Qin F. et al. S (2010)
Study of the Heat of Absorption of CO2 in Aqueous Ammonia: Comparison between Experimental Data and Model Predictions
Ind. Eng. Chem. Res., 49(8), pp3776- 3784