Conversion of cellulose into 5-hydroxymethylfurfural in an H2O/tetrahydrofuran/cyclohexane biphasic system with Al2(SO4)3 as the catalyst

نویسندگان

چکیده

A simple and efficient biphasic system comprising H2O, tetrahydrofuran (THF), cyclohexane (CHX) Al2(SO4)3 was employed to convert cellulose into 5-hydroxymethylfurfural (HMF). The volume ratio of the organic phase aqueous (Vorg/Vaque), concentration in (C[Al2(SO4)3]aque) (C[Al2(SO4)3]org) played critical roles conversion HMF. In systems with H2O/THF/Al2(SO4)3 4/18/0.4 H2O/THF/CHX/Al2(SO4)3 3/16/3/0.4, > 80% added H2O dissolved phase, whereas most remained under reaction temperature, jointly leading high Vorg/Vaque, C[Al2(SO4)3]aque low C[Al2(SO4)3]org system. All these results yield excellent performance addition CHX can decrease solubility thus improving stability HMF influences catalyst usage, temperature time, cellulose/solvent were all explored, a 71.2% obtained H2O–THF–CHX an H2O/THF/CHX 3/16/3 optimized conditions.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Catalytic Conversion of Biomass-derived Carbohydrates into 5-Hydroxymethylfurfural using a Strong Solid Acid Catalyst in Aqueous γ-Valerolactone

Selective conversion of biomass-derived carbohydrates into 5-hydroxymethylfurfural (HMF) is of great significance for biomass conversion. In this study, a novel solid Brønsted acid was prepared simply by the copolymerization of paraformaldehyde and p-toluenesulfonic acid and then used to catalyze the conversion of various carbohydrates into HMF in γ-valerolactone-water (GVL/H2O) reaction medium...

متن کامل

Conversion of Sawdust into 5-Hydroxymethylfurfura by Using 1,3-Dimethyl-2-Imidazolidinone as the Solvent

The conversion of the cellulose into 5-HMF would experience three steps, cellulose to glycose, glycose to fructose and fructose to 5-HMF. Chloride ion can break down the hydrogen bond in cellucose, chromium can catalyze the isomerization of glycose to fructose, and the high temperature is helpful to cyclohydration of fructose to 5-HMF. In this paper, the sawdust has been directly degraded i...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Cellulose

سال: 2022

ISSN: ['1572-882X', '0969-0239']

DOI: https://doi.org/10.1007/s10570-022-04455-3