Efficient Conversion of Furfuryl Alcohol Into Ethyl Levulinate in an Extremely Low Sulfuric Acid Catalyst System

2013 ◽  
Vol 2 (3) ◽  
pp. 182-187
Author(s):  
Geng Zhao ◽  
Yong Sun ◽  
Xianhai Zeng ◽  
Lu Lin
Keyword(s):  
Sulfuric Acid ◽  
Furfuryl Alcohol ◽  
Acid Catalyst ◽  
Catalyst System ◽  
Efficient Conversion ◽  
Ethyl Levulinate ◽  
Sulfuric Acid Catalyst

Organic Solid Acid Catalyst for Efficient Conversion of Furfuryl Alcohol to Biofuels

2016 ◽  
Vol 1 (19) ◽  
pp. 6079-6085 ◽  
Author(s):  
Md. Mominul Islam ◽  
Subhajit Bhunia ◽  
Rostam Ali Molla ◽  
Asim Bhaumik ◽  
Sk. Manirul Islam
Keyword(s):  
Furfuryl Alcohol ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Efficient Conversion ◽  
Organic Solid

A comparative study on direct production of ethyl levulinate from glucose in ethanol media catalysed by different acid catalysts

2013 ◽  
Vol 67 (11) ◽  
Author(s):  
Gui-Zhuan Xu ◽  
Chun Chang ◽  
Wei-Na Zhu ◽  
Bo Li ◽  
Xiao-Jian Ma ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Reaction Rate ◽  
Formation Rate ◽  
Acid Catalyst ◽  
Water Addition ◽  
Initial Glucose Concentration ◽  
Direct Production ◽  
Ethyl Levulinate ◽  
Higher Temperature ◽  
By Products

AbstractDirect production of ethyl levulinate (EL) from glucose catalysed by a liquid acid catalyst (sulfuric acid) and a solid acid zeolite catalyst USY NKF-7 (USY) in ethanol media was investigated in this study. Effects of the initial glucose concentration (C G0), reaction temperature (T), amount of acid catalyst, and water addition on the yields of EL were compared, respectively. The results show that higher yield of EL can be obtained at lower C G0. Higher temperature and acid concentration can accelerate the reaction rate, but the formation rate of the by-products increases more quickly than that of EL. Water addition also can result in the decrease of the yield of EL. Although sulfuric acid is efficient in the production of EL, the USY is more efficient in converting glucose to 5-ethoxymethyl-2-furaldehyde. Moreover, the use of USY can limit the diethyl ether production, and it can be reused for multiple times.

scholarly journals The paper-forming properties of hemp fire peroxide cellulose in combination with wood sulphate cellulose

2021 ◽  
Vol 2094 (5) ◽  
pp. 052043
Author(s):  
R A Marchenko ◽  
R Z Pen ◽  
I L Shapiro ◽  
Y A Ambrosovich
Keyword(s):  
Hydrogen Peroxide ◽  
Sulfuric Acid ◽  
Cannabis Sativa ◽  
Sulfuric Acid Concentration ◽  
Acid Catalyst ◽  
Strength Properties ◽  
Mixed Composition ◽  
Deciduous Wood ◽  
Sulfuric Acid Catalyst ◽  
Hardwood Pulp

Abstract Hemp fire (Cannabis sativa) was delignified with the reaction mix “acetic acid - hydrogen peroxide - sulfuric acid catalyst - water” under sulfuric acid concentration of 0.45%, liquid module of 6, and temperature of 85 ° C. The cellulose was ground to 34 … 36°SHR and mixed in different ratios in compliance with the simplex-centroid experimental design with bleached sulfate softwood and hardwood pulp. The influence of the mixed composition formulations on the main strength properties of paper castings has been studied. It has been concluded that technical cellulose obtained from hemp fire applying this method, can be used for paper products manufacturing in combination with sulphate cellulose from coniferous and deciduous wood.

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