Abstract：
:Direct catalytic transformation of xylan-type hemicelluloses to furfural in the aqueous system and the biphasic system were comparatively investigated under mild conditions. Screening of several promising chlorides for conversion of beech xylan in the aqueous system revealed the Lewis acid SnCl4 was the most effective catalyst. Comparing to the single aqueous system, the bio-based 2-methyltetrahydrofuran (2-MTHF)/H2O biphasic system was more conducive to the synthesis of furfural, in which the highest furfural yield of 78.1% was achieved by using SnCl4 as catalysts under the optimized reaction conditions (150°C, 120 min). Additionally, the influences of xylan-type hemicelluloses with different chemical and structural features from beech, corncob and bagasse on the furfural production were studied. It was found that furfural yield to some extent was determined by the xylose content in hemicelluloses and also had relationships with the molecular weight of hemicelluloses and the degree of crystallization.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Wang W,Ren J,Li H,Deng A,Sun Rdoi
10.1016/j.biortech.2015.02.068subject
Has Abstractpub_date
2015-05-01 00:00:00pages
188-94eissn
0960-8524issn
1873-2976pii
S0960-8524(15)00247-3journal_volume
183pub_type
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