(761g) Fructose Dehydration to 5-Hydroxymethylfurfural Over Superhydrophobic-Oleophilic Mesoporous Polymeric Solid Acids in a Biphasic System | AIChE

(761g) Fructose Dehydration to 5-Hydroxymethylfurfural Over Superhydrophobic-Oleophilic Mesoporous Polymeric Solid Acids in a Biphasic System

Authors 

Noshadi, I. - Presenter, Department of Chemical, Materials & Biomolecular Engineering, University of Connecticut Storrs 06269, United States
Kanjilal, B., UCONN
Parnas, R., Department of Chemical and Biomolecular Engineering, UCONN
Liu, F., Key Laboratory of Alternative Technologies for Fine Chemicals Process of Zhejiang Province, Shaoxing University, Shaoxing, 312000, People’s Republic of China



Novel and efficient mesoporous polydivinylbenzene (PDVB) based solid strong acid (PDVB-SO3H-SO2CF3) has been successfully prepared by grafting of strong electron withdrawing group of SO2CF3 onto the network of performed mesoporous solid acid of PDVB-SO3H, which could be synthesized from sulfonation of superhydrophobic mesoporous PDVB or copolymerization of DVB with sodium p-styrene sulfonate. N2 isotherms showed that p-PDVB-SO3H has large BET surface area and uniform mesopores. TGA curves and contact angle tests show that PDVB-SO3H-SO2CF3 has large superior thermal stability, good hydrophobicity and oleophilicityCatalytic tests confirmed that p-PDVB-SO2CF3 showed much better catalytic activities and recyclability toward dehydration of fructose than those of H-form mesoporous ZMS-5 zeolite, carbon solid acid and acidic resin of Amberlyst 15,which will be very important for their wide applications for HMF production. HMF yields of  over 85% and 100% fructose conversion were obtained using this biphasic water/MIBK (Methyl isobutyl ketone) reactor system. The excellent catalytic activity and good recyclability of PDVB-SO3H-SO2CF3 result from its unique characters such as large surface area, ultra strong acid strength, adjustable hydrophobic-oleophilic and stable network.

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