Category: 2144-40-3

Let¡¯s face it, organic chemistry can seem difficult to learn. 2144-40-3. Especially from a beginner¡¯s point of view. Like 2144-40-3, Name is (cis-Tetrahydrofuran-2,5-diyl)dimethanol. In a document type is Article, introducing its new discovery.

Kinetics of Catalytic Hydrogenation of 5-Hydroxymethylfurfural to 2,5-bis-Hydroxymethylfuran in Aqueous Solution over Ru/C

5-Hydroxymethylfurfural (5-HMF) is a cellulosic product of the hydrolysis of biomass, and it is widely considered for the production of several interesting chemicals and derivatives. In the present work, catalytic hydrogenation of 5-hydroxymethylfurfural to 2,5-bis-hydroxymethylfuran was investigated using 5% Ru/C in the aqueous phase. Kinetic data were experimentally obtained over a wide range of temperatures (313-343 K), H2 partial pressure (0.69-2.07 MPa), initial HMF concentration (19.8-59.5 mM), and catalyst loading (0.3-0.7 kg/m3) in a three-phase slurry reactor. Disappearance of initial 5-HMF concentrations was modeled using the power law and Langmuir-Hinshelwood-Hougen-Watson models. A model based on the competitive adsorption of molecular H2 and HMF was proposed. It is presumed that surface reaction between nondissociatively chemisorbed H2 and 5-HMF was rate determining. This model provided the best fit for the kinetic data. From the Arrhenius equation, the activation energy for the surface reaction was found to be 104.9 kJ/mol.

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Reference£º
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

2144-40-3, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 2144-40-3, Name is (cis-Tetrahydrofuran-2,5-diyl)dimethanol, molecular formula is C6H12O3. In a Review, authors is Nguyen, Hannah£¬once mentioned of 2144-40-3

A review of biorefinery separations for bioproduct production via thermocatalytic processing

With technological advancement of thermocatalytic processes for valorizing renewable biomass carbon, development of effective separation technologies for selective recovery of bioproducts from complex reaction media and their purification becomes essential. The high thermal sensitivity of biomass intermediates and their low volatility and high reactivity, along with the use of dilute solutions, make the bioproducts separations energy intensive and expensive. Novel separation techniques, including solvent extraction in biphasic systems and reactive adsorption using zeolite and carbon sorbents, membranes, and chromatography, have been developed. In parallel with experimental efforts, multiscale simulations have been reported for predicting solvent selection and adsorption separation. We discuss various separations that are potentially valuable to future biorefineries and the factors controlling separation performance. Particular emphasis is given to current gaps and opportunities for future development.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.2144-40-3. In my other articles, you can also check out more blogs about 2144-40-3

Reference£º
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

2144-40-3, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 2144-40-3, molcular formula is C6H12O3, introducing its new discovery.

NOVEL METHOD FOR PREPARING HIGHLY TRANSPARENT AND HIGHLY HEAT-RESISTANT POLYCARBONATE ESTER

The present invention relates to a method for preparing a bio-based polycarbonate ester, the method comprising the steps of: (1) preparing a compound represented by chemical formula 3 by converting a compound represented by chemical formula 2 into an intermediate reactant having an easily detachable functional group, followed by a nucleophilic reaction with phenol; and (2) preparing a compound including a repeat unit represented by chemical formula 1 by a polycarbonate melt condensation polymerization of the compound represented by chemical formula 3, prepared in step (1), a compound represented by chemical formula 4, and 1,4:3,6-dianhydrohexitol. The bio-based polycarbonate ester according to the present invention can regulate merits and demerits of physical properties obtained from each repeat unit, and can be favorably used for various uses due to high degrees of transparency and heat resistance thereof.

Because enzymes can increase reaction rates by enormous factors and tend to be very specific, 2144-40-3, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 2144-40-3

Reference£º
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem