Catalytic Depolymerization of Microcrystalline Cellulose Accomplished in an Ionic Liquid

2014 ◽  
Author(s):  
Matthew Foley ◽  
Luke Haverhals ◽  
David Klein ◽  
William McIlvain ◽  
Matthew Reichert ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Microcrystalline Cellulose

Modification of microcrystalline cellulose structural properties by ball-milling and ionic liquid treatments and their correlation to enzymatic hydrolysis rate and yield

Cellulose ◽  
2019 ◽  
Vol 26 (12) ◽  
pp. 7323-7335 ◽  
Author(s):  
Felipe Tadeu Fiorini Gomide ◽  
Ayla Sant’Ana da Silva ◽  
Elba Pinto da Silva Bon ◽  
Tito Lívio Moitinho Alves
Keyword(s):  
Ionic Liquid ◽  
Enzymatic Hydrolysis ◽  
Ball Milling ◽  
Structural Properties ◽  
Microcrystalline Cellulose ◽  
Hydrolysis Rate

scholarly journals Catalytic Performance of Sulfonated Carbon Catalysts for Hydrolysis of Palm Oil Empty Fruit Bunch

2020 ◽  
Vol 23 (6) ◽  
pp. 209-215
Author(s):  
Anis Kristiani ◽  
Kiky Corneliasari Sembiring ◽  
Yosi Aristiawan ◽  
Fauzan Aulia ◽  
Luthfiana Nurul Hidayati ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Lignocellulosic Biomass ◽  
Palm Oil ◽  
Microcrystalline Cellulose ◽  
Ambient Pressure ◽  
Raw Material ◽  
Empty Fruit Bunch ◽  
Fermentable Sugar ◽  
Carbon Catalysts ◽  
Hydrolysis Of

Utilizing lignocellulosic biomass into valuable products, such as chemicals and fuels, has attracted global interest. One of lignocellulosic biomass, palm oil empty fruit bunch (EFB), has major content of cellulose (30-40%), which is highly potential to be a raw material for fermentable sugar production. In this research, a series of sulfonated carbon catalysts with various concentrations of sulfuric acid (H2SO4, 10-30 v/v%) solutions have been successfully prepared and applied for a single stage of heterogeneous acid-catalyzed hydrolysis over microcrystalline cellulose and EFB under moderate temperature condition and ambient pressure. The catalysts’ physical and chemical properties were characterized by using a Thermogravimetric Analyzer (TGA), X-ray diffractometer, surface area analyzer, and Fourier-transform infrared spectrophotometer. The characterization results showed that sulfonated carbon had relatively similar physical properties with the parent of active carbon. The hydrolysis activity of sulfonated carbon catalysts gave various Total Reducing Sugar (TRS). The effects of sulfate loading amount in catalyst samples and various ionic liquids were investigated. The hydrolysis of pure microcrystalline cellulose powder (Avicel) using 30%-sulfonated carbon (30-SC) catalyst in 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) ionic liquid at 150°C yielded the highest TRS of 16.11%. Subsequently, the catalyst of 30-SC was also tested for hydrolysis of EFB and produced the highest TRS of 40.76% in [BMIM]Cl ionic liquid at 150°C for 4 h. The obtained results highlight the potential of sulfonated carbon catalysts for hydrolysis of EFB into fermentable sugar as an intermediate product for ethanol production.

Versatile grafted microcrystalline cellulose with ionic liquid as new Losartan-controlled release material

2020 ◽  
Vol 124 ◽  
pp. 109490 ◽  
Author(s):  
Stefânia Sales de Oliveira Santos ◽  
Rubén Dário Sinisterra Millán ◽  
Marcelo Gomes Speziali
Keyword(s):  
Ionic Liquid ◽  
Controlled Release ◽  
Microcrystalline Cellulose

Synthesis of Microcrystalline Cellulose Grafting Poly (methyl methacrylate) Copolymers by ATRP in 1-Allyl-3-Methylimidazolium Chloride

2012 ◽  
Vol 621 ◽  
pp. 157-161 ◽  
Author(s):  
Er Jun Tang ◽  
Miao Yuan ◽  
Liang Li ◽  
Feng Bian ◽  
Di Shun Zhao
Keyword(s):  
Molecular Weight ◽  
Ionic Liquid ◽  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
1H Nmr ◽  
Microcrystalline Cellulose ◽  
Methacrylate Copolymers ◽  
Covalently Bonded ◽  
Ft Ir

The microcrystalline cellulose grafting polymethylmethacrylate (MCC-g-PMMA) copolymer was successfully synthesized by atom transfer radical polymerization (ATRP) using ethanediamine as ligand in Ionic liquid 1-allyl-3-methylimidazolium chloride ([AMIM]Cl). The MCC-g-PMMA was characterized by FT-IR, 1H NMR, SEM and GPC spectroscopies. The results confirmed that the PMMA had been covalently bonded to cellulose backbone. The molecular weight of graft copolymers linearly increased during the polymerization and presented a low polydispersity.

Ionic Liquid-Assisted Alignment of Corn Straw Microcrystalline Cellulose Aerogels with Low Tortuosity Channels for Salt-Assistance Solar Steam Evaporators

2021 ◽  
Vol 13 (10) ◽  
pp. 12181-12190
Author(s):  
Jiyan Li ◽  
Xu Zhou ◽  
Yanju Jing ◽  
Hanxue Sun ◽  
Zhaoqi Zhu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Microcrystalline Cellulose ◽  
Corn Straw

scholarly journals Valorization of Microcrystalline Cellulose using Heterogeneous Protonated Zeolite Catalyst: An experimental and kinetics approach

2021 ◽  
Author(s):  
Samuel Kassaye ◽  
Dinesh Gupta ◽  
Kamal. K. Pant ◽  
Sapna Jain
Keyword(s):  
Activation Energy ◽  
Ionic Liquid ◽  
Microcrystalline Cellulose ◽  
Maximum Yield ◽  
Cellulose Hydrolysis ◽  
Reducing Sugar ◽  
Zeolite Catalysts ◽  
Bet Surface Area ◽  
X Ray Diffraction ◽  
Temperature Programmed

Abstract This study aims to valorize microcrystalline cellulose (MCC) using protonated zeolite catalysts such as (H-ZSM-5) and Cr/H-ZSM-5 (5 %) in ionic liquid. The catalytic effect in synergy with 1-butyl-3-methylimidazolium Chloride ([BMIM] Cl) ionic liquid was studied in detail. The total reducing sugar (TRS) was determined using 3, 5-dinitrisalcylic acid (DNS) array method. The catalysts were characterized using techniques such as Fourier transform infrared (FT-IR), X-ray diffraction analysis (XRD), temperature-programmed desorption of ammonia (NH3-TPD), and BET-surface area analyzer. H-ZSM-5 effectively depolymerized cellulose with a maximum yield of 70% total reducing sugar (34% glucose, 8% fructose, and 4.5% 5-HMF) Cr/H-ZSM-5 catalyst dehydrates fructose to 5-HMF with a yield of 53%. The use of ionic liquid significantly reduced the activation energy of formation and decomposition. The activation energy determined in cellulose hydrolysis was 85.83 KJ mol− 1 for a reaction time of 180 min while the decomposition energy was found to be 42.5 kJ mol− 1.

Cellulose nanocrystals preparation from microcrystalline cellulose using ionic liquid-DMSO binary mixture as a processing medium

2021 ◽  
pp. 118208
Author(s):  
Gamal Abdalla Suliman Haron ◽  
Hamayoun Mahmood ◽  
Hilmi Bin Noh ◽  
Masahiro Goto ◽  
Muhammad Moniruzzaman
Keyword(s):  
Ionic Liquid ◽  
Binary Mixture ◽  
Microcrystalline Cellulose ◽  
Cellulose Nanocrystals

Solubility of starch and microcrystalline cellulose in 1-ethyl-3-methylimidazolium acetate ionic liquid and solution rheological properties

2016 ◽  
Vol 18 (39) ◽  
pp. 27584-27593 ◽  
Author(s):  
Xiaoyan Tan ◽  
Xiaoxi Li ◽  
Ling Chen ◽  
Fengwei Xie
Keyword(s):  
Ionic Liquid ◽  
Rheological Properties ◽  
Microcrystalline Cellulose ◽  
Different Temperatures

This study compared the solubility of starch (G50) and microcrystalline cellulose (MCC) in an ionic liquid (IL), 1-ethyl-3-methylimidazolium acetate ([Emim][OAc]), at different temperatures.

Sign in / Sign up

Export Citation Format

Share Document