TY - JOUR
T1 - Cellulose dissolution and conversion into 5-hydroxymethylfurfural in mixed molten salt hydrate
AU - Wei, Chunjie
AU - Liu, Gang
AU - Xie, Yujiao
AU - Sun, Zhongyuan
AU - Liu, Chang
AU - Song, Feng
AU - Cui, Hongyou
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Nature B.V.
PY - 2023/1
Y1 - 2023/1
N2 - Molten salt hydrate (MSH) is a good solvent for cellulose dissolution and an effective catalyst for cellulose conversion. In this work, a series of MSH was evaluated in terms of cellulose dissolvability, regeneration performance, and catalytic activity in cellulose conversion into 5-hydroxymethylfurfural (HMF). ZnBr2·3H2O–LiCl·3H2O showed good performance on cellulose dissolution and conversion. The effects of ZnBr2·3H2O concentration, reaction temperature, and time on cellulose conversion into HMF in ZnBr2·3H2O–LiCl·3H2O were optimized, and 48.7% HMF yield was reached at 60 wt.% ZnBr2·3H2O. The species of ZnBr2·3H2O–LiCl·3H2O were analyzed, and the function of species concentration was correlated with the product yield from the conversion of fructose. It was found that Br− and H+ were the active species for fructose dehydration into HMF. ZnBr3− and H+ catalyzed the conversion of fructose into furfural, which competed with the production of HMF. The reaction mechanism was proposed to understand the cooperate of species in MSH for cellulose conversion.
AB - Molten salt hydrate (MSH) is a good solvent for cellulose dissolution and an effective catalyst for cellulose conversion. In this work, a series of MSH was evaluated in terms of cellulose dissolvability, regeneration performance, and catalytic activity in cellulose conversion into 5-hydroxymethylfurfural (HMF). ZnBr2·3H2O–LiCl·3H2O showed good performance on cellulose dissolution and conversion. The effects of ZnBr2·3H2O concentration, reaction temperature, and time on cellulose conversion into HMF in ZnBr2·3H2O–LiCl·3H2O were optimized, and 48.7% HMF yield was reached at 60 wt.% ZnBr2·3H2O. The species of ZnBr2·3H2O–LiCl·3H2O were analyzed, and the function of species concentration was correlated with the product yield from the conversion of fructose. It was found that Br− and H+ were the active species for fructose dehydration into HMF. ZnBr3− and H+ catalyzed the conversion of fructose into furfural, which competed with the production of HMF. The reaction mechanism was proposed to understand the cooperate of species in MSH for cellulose conversion.
KW - 5-Hydroxymethylfurfural
KW - Cellulose dissolution
KW - Conversion
KW - Molten salt hydrate
UR - http://www.scopus.com/inward/record.url?scp=85143235756&partnerID=8YFLogxK
U2 - 10.1007/s10570-022-04967-y
DO - 10.1007/s10570-022-04967-y
M3 - 文章
AN - SCOPUS:85143235756
SN - 0969-0239
VL - 30
SP - 801
EP - 813
JO - Cellulose
JF - Cellulose
IS - 2
ER -