Performance of Metal-Organic Framework MIL-101 in the Liquid Phase Adsorption of Heterocyclic Nitrogen Compounds
||Coordination Polymers and Metal Organic Frameworks: Properties, Types and Applications
Nova publishers. 2012.
307 c. ISBN 9781614708995.
Boreskov Institute of Catalysis, SB RAS, Novosibirsk, Russian Federation
Nikolaev Institute of Inorganic Chemistry, SB RAS, Novosibirsk, Russian Federation
The heterocyclic nitrogen compounds containing in liquid hydrocarbons streams poison many industrial catalysts. The selective removal of the nitrogen species from refinery streams by adsorption at ambient temperature is a promising approach. Remarkable adsorption capacity and selectivity towards heterocyclic nitrogen compounds were observed for metal-organic framework [Cr3O(C8H4O4)3F(H2O)2] (MIL-101) under the sorption from isooctane and the hydrotreated gas oil. The adsorption capacity of MIL-101 towards heterocyclic nitrogen compounds is significantly higher than the capacity of conventional adsorbents such as activated carbons, activated alumina, silica-based adsorbents and zeolite-based materials especially under the sorption from hydrocarbon with low nitrogen content. The spent MIL-101 can be regenerated and reused in the next adsorption cycle without loss of its adsorption capability. The very high adsorption capacity and selectivity of metal-organic framework MIL-101 for the nitrogen compounds, along with its good regenerability, indicate that MIL-101 may be the promising adsorbent for deep denitrogenation of liquid hydrocarbon streams.