Results 21 to 30 of about 43,768 (290)

Investigation on Conversion Pathways in Degradative Solvent Extraction of Rice Straw by Using Liquid Membrane-FTIR Spectroscopy

Energies, 2019
Degradative solvent extraction (DSE) is effective in both dewatering and upgrading biomass wastes through the selective removal of oxygen functional groups. However, this conversion mechanism has yet to be elucidated.
Watcharakorn Ketren, Heishun Zen, Ryuichi Ashida, Toshiteru Kii, Hideaki Ohgaki   +4 more
doaj   +1 more source

Kinetic model for the dehydration of xylose to furfural from a boronate diester precursor [PDF]

, 2022
A comprehensive kinetic model describes the dehydration of xylose starting from the boronate diester-protected xylose (PBA2X). The model incorporates (de)esterification of PBA2X, partitioning, and xylose dehydration, and aims to evaluate the effects of ...
Ricciardi, Luca, Lange, Jean-Paul, Verboom, Willem, Huskens, J.   +3 more
core   +1 more source

A reduced order model for triethylene glycol natural gas dehydration system

South African Journal of Chemical Engineering, 2023
In natural gas processing plants, glycol dehydration is commonly used to remove water from the gas streams, to avoid pipeline blockage and equipment breakdown due to hydrates formation.
Daniel Jia Sheng Chong, Dominic C.Y. Foo, Zulfan Adi Putra   +2 more
doaj   +1 more source

Effect of Mixed-Solvent Environments on the Selectivity of Acid-Catalyzed Dehydration Reactions

, 2019
The composition of the liquid phase can alter the rates of individual reaction steps and thus alter the selectivity of acid-catalyzed reactions, but these solvent effects are difficult to anticipate for design purposes. Herein, we report the kinetics and
James A. Dumesic (1391653), Jack Euclide (8275692), Zhizhang Shen (1522498), Theodore W. Walker (8275686), Reid C. Van Lehn (6857372), George W. Huber (1472491), Liam Witteman (4027802), Alex K. Chew (5925644), Benginur Demir (8275689)   +8 more
core   +2 more sources

Conversion of Glucose into HMF Catalyzed by CPL-LiCl Investigated using Dual-Wavelength UV Spectrophotometry

BioResources, 2016
The process of dehydration of glucose to 5-hydroxymethylfurfural (HMF), using caprolactam-lithium chloride (CPL/LiCl) as a solvent, was investigated. Dual-wavelength ultraviolet spectrophotometry provides a new approach for the determination of glucose ...
Yue Yuan, Shuangquan Yao, Shuangxi Nie, Shuangfei Wang   +3 more
doaj   +1 more source

Comparative analysis of isopropyl alcohol dehydration using ionic liquids and deep eutectic solvent

Journal of Ionic Liquids, 2023
The current article deals with the separation of the azeotropic mixture of isopropyl alcohol (IPA) and water using an ionic liquid, 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]) and Deep Eutectic Solvents (DESs), Choline Chloride/glycerol ...
Amit Kumar Gomey, Mata Mani Tripathi, Mohd Belal Haider, Rakesh Kumar   +3 more
doaj   +1 more source

Evaluation of the Free Volume Theory to Predict Moisture Transport and Quality Changes During Broccoli Drying

, 2010
Moisture diffusion in porous broccoli florets and stalks is modeled using the free volume and Maxwell-Eucken theories. These theories are based on the mobility of water and concern the variation of the effective diffusion coefficient for a wide range of ...
van der Sman, R.G.M., Jin, X., Boxtel, A.J.B., van, Sman, R.G.M., van der, van Boxtel, A.J.B.   +4 more
core   +1 more source

Sustainable Solvent Systems for Use in Tandem Carbohydrate Dehydration Hydrogenation

, 2016
Monophasic separation-friendly solvent systems were investigated for the sustainable acid-catalyzed dehydration of fructose to 5-hydroxymethylfurfural (HMF).
James A. Dumesic (1391653), Gretchen M. Gonzalez (1963474), Anthony J. Crisci (1724395), Ricardo Alamillo (1783630), Mark H. Tucker (1963471), Susannah L. Scott (1275360)   +5 more
core   +1 more source

Methanol fixation for scanning electron microscopy of plants

Applied Microscopy, 2020
Plant specimens for scanning electron microscopy (SEM) are commonly treated using standard protocols. Conventional fixatives consist of toxic chemicals such as glutaraldehyde, paraformaldehyde, and osmium tetroxide.
Ki Woo Kim
doaj   +1 more source

Unusual shape-preserved pathway of a core-shell phase transition triggered by orientational disorder

IUCrJ, 2023
The ubiquitous presence of crystal defects provides great potential and opportunities to construct the desired structure (hence with the desired properties) and tailor the synthetic process of crystalline materials.
Mengya Li, Weiwei Tang, Junbo Gong
doaj   +1 more source