Aqueous phase catalytic conversion of agarose to 5-hydroxymethylfurfural by metal chlorides

Journal Article · Sat Dec 14 04:00:00 EST 2013 · RSC Advances, 3(46):24090-24098

DOI:https://doi.org/10.1039/C3RA43293A· OSTI ID:1108987

Yan, Lishi; Laskar, Dhrubojyoti D.; Lee, Suh-Jane; Yang, Bin

Abstract: 5-HMF is a key intermediate for producing chemicals and fuels that can substitute for today’s petroleum-derived feedstocks. A series of metal chlorides, including NaCl, CaCl2, MgCl2, ZnCl2, CuCl2, FeCl3, and CrCl3, were comparatively investigated to catalyze agarose degradation for production of 5-HMF at temperature 180 oC, 200 oC, and 220 oC for 30 min, with catalyst concentration of 0.5% (w/w), 1% (w/w) and 5% (w/w), and substrate concentration of 2% (w/w). Our results revealed that alkali metal chlorides and alkali earth metal chlorides such as NaCl, CaCl2 and MgCl2 gave better 5-HMF yield compared with transition metal chlorides including ZnCl2, CrCl3, CuCl2 and FeCl3. 1% (w/w) MgCl2 was the more favorable catalyst for 5-HMF production from agarose, and resulted in 40.7% 5-HMF yield but no levulinic acid or lactic acid at 200 oC, 35 min. The reaction pathways of agarose degradation catalyzed by MgCl2 were also discussed.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1108987
• Report Number(s): PNNL-SA-89336
• Journal Information: RSC Advances, 3(46):24090-24098, Journal Name: RSC Advances, 3(46):24090-24098
• Country of Publication: United States
• Language: English

Related Subjects

The highest 5-HMF yield was 40.7% at 200 °C and 35 min with 1% (w/w) MgCl2 addition.