Contribution information

Title Application of cyanated asphaltenes in gas phase adsorption processes for removal of volatile organic compounds.
Status Accepted
Final type Lecture
Final session Separation processes
Authors M., Plata-Gryl1, M., Momotko2, S., Makowiec3, G., Boczkaj4
1 Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, Gdansk, Poland
2 Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, Gdansk, Poland
3 Gdansk University of Technology, Faculty of Chemistry, Department of Organic Chemistry, Gdansk, Poland
4 Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, Gdansk, Poland
Brief content Proposed contribution concerns the utilization of asphaltenes based adsorbents for purification of waste gases. Asphaltenes are a group of aromatic-type compounds that are found in crude oil which quantitatively remain in a residue from vacuum distillation and are a source of severe technological issues during crude oil processing. Due to this fact, there is a significant interest in separating asphaltene fraction from process streams. Currently, asphaltenes are treated as a undesired by-product or waste and as such can be considered as a low cost material. Utilization of asphaltenes in separation processes would solve, at least partially, petroleum industry’s issues with undesired and problematic by-product by its valorization and would become the part of remedial measures to reduce the emission of gaseous contaminants. The contribution will report the results about the impact of chemical modification (cyanation) on asphaltenes surface’s energetics and adsorption properties towards different noxious VOCs. The studies were performed by means of inverse gas chromatography technique. Moreover, the adsorption efficiency was assessed by adsorption isotherms and breakthrough curves. Obtained experimental data were fitted to various isotherm and breakthrough curve models and a scale up calculations will be presented. Obtained results revealed an enhanced adsorption properties obtained by chemical modification of raw asphaltene material. Value of the dispersive component of the surface free energy turned out to be comparable with activated carbons, zeolites or aluminas. Furthermore a significant improvement of adsorption capacity and breakthrough volume of cyanated asphaltene adsorbent was observed.
ID 45