SO3H-functionalized acidic ionic liquids as catalysts for the hydrolysis of cellulose

The hydrolysis of cellulose into platform compounds and chemicals fuels has gained much attention to relieve the global energy crisis and environmental pollution. The filter paper (FP) cellulose with average degree of polymerization (DP) of 1000-1300 was dissolved in 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) firstly. And then acidic ionic liquids (ILs), ([(CH2)3SO3HVIm]HSO4) as the catalyst was applied to hydrolyze the FP cellulose by microwave heating. Compared with the oil bath heating method, microwave heating could effectively increase the total reducing sugars (TRS) yield about 10.7%. When the ratio of ILs catalyst to FP (w/w) was 0.167, and the ratio of deionized water to FP (w/w) was 0.833, the TRS yield was up to 60.8% within 20 min at 100°C.

Download Full-text

Hydrolysis of cellulose catalyzed by novel acidic ionic liquids

Carbohydrate Polymers ◽

10.1016/j.carbpol.2014.08.078 ◽

2015 ◽

Vol 115 ◽

pp. 49-53 ◽

Cited By ~ 43

Author(s):

Kelei Zhuo ◽

Quanzhou Du ◽

Guangyue Bai ◽

Congyue Wang ◽

Yujuan Chen ◽

...

Keyword(s):

Ionic Liquids ◽

Acidic Ionic Liquids ◽

Hydrolysis Of Cellulose ◽

Hydrolysis Of

Download Full-text

N-methyl-2-pyrrolidonium-based Brönsted-Lewis acidic ionic liquids as catalysts for the hydrolysis of cellulose

Science China Chemistry ◽

10.1007/s11426-016-5592-1 ◽

2016 ◽

Vol 59 (5) ◽

pp. 564-570 ◽

Cited By ~ 9

Author(s):

Zheng Zhao ◽

Na Li ◽

Abdul Waheed Bhutto ◽

Ahmed A. Abdeltawab ◽

Salem S. Al-Deyab ◽

...

Keyword(s):

Ionic Liquids ◽

Acidic Ionic Liquids ◽

Hydrolysis Of Cellulose ◽

Hydrolysis Of

Download Full-text

Efficient Hydrolysis of Lignocellulose by Acidic Ionic Liquids under Low-Toxic Condition to Microorganisms

Catalysts ◽

10.3390/catal7040108 ◽

2017 ◽

Vol 7 (12) ◽

pp. 108 ◽

Cited By ~ 2

Author(s):

Kosuke Kuroda ◽

Ken Inoue ◽

Kyohei Miyamura ◽

Heri Satria ◽

Kenji Takada ◽

...

Keyword(s):

Ionic Liquids ◽

Acidic Ionic Liquids ◽

Low Toxic ◽

Hydrolysis Of

Download Full-text

Hydrolysis of microcrystalline cellulose using functionalized Bronsted acidic ionic liquids – A comparative study

Carbohydrate Polymers ◽

10.1016/j.carbpol.2015.08.039 ◽

2016 ◽

Vol 135 ◽

pp. 280-284 ◽

Cited By ~ 44

Author(s):

Firdaus Parveen ◽

Tanmoy Patra ◽

Sreedevi Upadhyayula

Keyword(s):

Ionic Liquids ◽

Comparative Study ◽

Microcrystalline Cellulose ◽

Acidic Ionic Liquids ◽

Hydrolysis Of

Download Full-text

Functional acidic ionic liquids as effective solvents for the fractionation of lignocelluloses

BioResources ◽

10.15376/biores.14.2.4721-4732 ◽

2019 ◽

Vol 14 (2) ◽

pp. 4721-4732

Author(s):

Shi Jia Dong ◽

Bi Xian Zhang ◽

Peng Zhang ◽

Kun Yang Wu ◽

Xin Miao He ◽

...

Keyword(s):

Ionic Liquids ◽

Lignin Degradation ◽

Degradation Products ◽

Reducing Sugar ◽

Alkaline Extraction ◽

Enzymatic Conversion ◽

Acidic Ionic Liquids ◽

Lignin Degradation Products ◽

High Yields ◽

Hydrolysis Of

There is increasing interest in the application of ionic liquids for the pretreatment and fractionation of lignocelluloses. In this study, a series of functional acidic ionic liquids (ILs) with various heterocyclic organic cations were synthesized. Corn stalks were successfully fractionated into lignin, hemicelluloses, and cellulose when ultrasonically pretreated with ILs at 70 °C for 3 h, and subsequently treated with alkaline extraction. High yields of IL-isolated lignin (18.3% to 19.6%) and (8.3% to 14.6%) were obtained using ILs in the absence and presence of water, respectively. The yield of cellulose ranged from 40.0 to 77.0% from IL treatments, whereas the yield of hemicelluloses ranged from 1.1% to 17.3%. Enzymatic hydrolysis of the isolated cellulose residual produced 89.2% to 94.9% reducing sugar with 77.8% to 86.1% glucose, which corresponded to 80.5% to 91.4% enzymatic conversion of cellulose. Syringol and vanillin were found as the main lignin degradation products.

Download Full-text