heterogeneous catalysis

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heterogeneous catalysis

[‚hed·ə·rə′jē·nē·əs kə′tal·ə·səs]
(chemistry)
A chemical process in which the catalyst is in a separate phase, usually the reactants and products are in gaseous or liquid phases and the catalyst is a solid, and the catalytic reaction occurs on the surface of the solid.
References in periodicals archive ?
Next, the heterogeneous catalyst such as metallic or metal oxide has wide potential to use it, where these catalysts can be easily recycled.
Presently, heterogeneous catalyst commonly used in hydrotreating/hydrocracking of heavy petroleum fractions, vacuum residual oil, and heavy crude oil have been found applicable to catalytic upgrading process in situ (CAPRI) (Weissman, et al.
To solve these problems, heterogeneous catalyst process is suggested (Kawashima et al.
Heterogeneous catalyst of cyclohexane exhibit leaching of active metal ions, extreme reaction conditions (2 MPa pressure and 177[degrees]C temperature), and low activity (Suresh et al.
BASF will benefit especially from hte's experience as a global leader in the application of high throughput methods to heterogeneous catalyst R&D," says Dr.
BASF will benefit especially from hte's experience as a global leader in the application of high-throughput methods to heterogeneous catalyst R&D," stated Dr.
By evaluating cellulose supported reactions verses carbon supported reactions we hope to be able to find more efficient and sustainable heterogeneous catalyst for cross-coupling reactions.
We have discovered that coordination polymers of earth-abundant metals are active water oxidation catalyst, competitive, fast and more robust than the best heterogeneous catalyst ever reported, able to reach over one million cycles working at neutral pH and ambient conditions.
Summary: TEHRAN (FNA)- The heterogeneous catalyst of palladium nanoparticles stabilized on carbon nanotubes was successfully produced by Iranian researchers at Shahid Beheshti University.
In this regard, the text could easily serve as the required text for two academic courses, one in heterogeneous catalyst fundamentals and the second in industrial catalytic processes.
A major breakthrough in the synthesis of Nylon was DuPont scientist Drinkard's discovery of the catalytic hydrocyanation of 1,3-butadiene to adiponitrile (ADN), which can then be hydrogenated over a heterogeneous catalyst to HMD.

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