Results 61 to 70 of about 2,743 (170)

Kinetic Analysis of the Hydrogenolysis of Lower Polyhydric Alcohols: Glycerol to Glycols

open access: yes, 2003
The production of ethylene glycol and propylene glycol from higher polyhydric alcohols has been parametrically examined numerous times. However, efforts to develop improved catalyst systems require a better understanding of the reaction mechanism ...
Lahr, Daniel, Shanks, Brent
core  

Control of composition and determination of dosage of hydrate formation inhibitors by their infrared spectra

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
The possibility of increasing the accuracy and efficiency of using infrared spectra of thermodynamic inhibitors to control their composition and calculate the dosage required for preventing hydrate formation in the oil and gas industry has been studied ...
Iu. S. Kozhevina, T. N. Nosenko
doaj   +1 more source

Solid-Liquid Equilibrium in Water – Glycols Systems:Measurements and Modelling

open access: yes, 2014
Glycols are widely used in the oil and gas industry. Monoethylene glycol (MEG) is often used to avoid hydrate formation and in many new developments, MEG is the preferred hydrate inhibitor over methanol.
Burgass, Rhoderick William   +2 more
core  

One-Pot Alkoxylation of Phenols with Urea and 1,2-Glycols

open access: yes, 2014
A one-pot epoxide-free alkoxylation process has been developed for phenolic compounds. The process involves heating phenols and urea in 1,2-glycols at 170-190 degrees C using Na(2)CO(3)/ZnO as co-catalysts under atmospheric conditions During the course ...
Lin, H.Y., Dai, S.A.
core  

Reviewing the evidence of antimicrobial activity of glycols [PDF]

open access: yes
In the 1940s and 1950s, researchers seeking safe and novel ways to eliminate airborne pathogens from enclosed spaces, investigated glycol vapours as a method of disinfection.
Duggan, Katrina   +3 more
core   +1 more source

Improved performance of magnetically recoverable Ce-promoted Ni/Al 2O3 catalysts for aqueous-phase hydrogenolysis of sorbitol to glycols

open access: yes, 2012
The addition of cerium into Ni/Al2O3 catalysts afforded a remarkable promoting effect on catalytic performance of aqueous-phase hydrogenolysis of sorbitol to produce glycols (e.g., 1,2-propylene glycol and ethylene glycol).
Yuan, Youzhu   +7 more
core   +2 more sources

Micronized Wood Pretreatment for the Production of Bio-Glycols

open access: yes, 2017
The purpose of this project was to determine whether S2G BioChemical’s (S2G) catalytic sugar-to-glycol technology was a suitable and cost-effective solution for cellulosic sugars produced using Washington State University’s (WSU) unique micronized wood ...
Snelling, Patrick   +2 more
core  

Influence of Ethylene Glycol and Propylene Glycol on Polymer Diffusion in Poly(butyl acrylate-co-methyl methacrylate) Latex Films

open access: yes, 2016
We describe fluorescence resonance energy transfer (FRET) experiments carried out to examine the effect of ethylene glycol and propylene glycol on the early stages of polymer diffusion in poly(butyl acrylate-co-methyl methacrylate) latex films.
Willie Lau (2180680)   +5 more
core   +1 more source

Ru-(Mn-M)O-X Solid Base Catalysts for the Upgrading of Xylitol to Glycols in Water

open access: yes, 2018
SSCI-VIDE+CDFA+NPR:CPI:MBEInternational audienceA series of Ru-(Mn-M)OX catalysts (M: Al, Ti, Zr, Zn) prepared by co-precipitation were investigated in the hydrogenolysis of xylitol in water to ethylene glycol, propylene glycol and glycerol at 200 °C and
Pinel, C.   +11 more
core   +1 more source

Problems in Disaster Response of Seawater-soaked Objects : Evaluation of a Risk on Generation of Chlorohydrin and Glycol by Ethylene Oxide or Propylene Oxide Fumigation in Tsunami-soaked Paper Objects and Books

open access: yes, 2012
In disaster response of water-soaked objects,microbial contamination by bacteria and fungi is a serious problem, especially with objects that are left for a long time before recovery.
早川, 典子   +21 more
core   +1 more source

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