Semiautomatic Microreactor for Catalytic Research

Hall, W. Keith; MacIver, D. S.; Weber, Heiner

doi:10.1021/ie50605a034

Cited by 39 publications

(10 citation statements)

References 6 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The propylene conversion was calculated using the internal standard according to Hall et al (1960), and by using the sampling valve to analyze the feed mixture prior to its entrance into the reactor, and then comparing the peak areas of propylene before and after reaction.…”

Section: Methodsmentioning

confidence: 99%

Bismuth Molybdate Catalysts. Kinetics and Mechanism of Propylene Oxidation

Keulks¹,

Rosynek²,

Daniel³

1971

Product R&D

View full text Add to dashboard Cite

Oxidation of propylene to acrolein over bismuth molybdate catalysts was studied in a flow reactor at atmospheric pressure and at temperatures between 400°and 460°C. The kinetics were determined as first order in propylene and zero order in oxygen. Over this temperature range, the activation energy was 29 kcal per mole. The side products.• acetaldehyde, formaldehyde, ethylene, carbon monoxide, and carbon dioxide, were formed almost exclusively in a consecutive pathway via acrolein or its surface species precursor when excess oxygen was present, A parallel pathway from propylene for the formation of carbon dioxide became important when there was an oxygen deficiency. A gas-phase, homogeneous oxidation of acrolein also became important when the postcatalytic volume of the reactor was increased.

show abstract

Section: Methodsmentioning

confidence: 99%

Bismuth Molybdate Catalysts. Kinetics and Mechanism of Propylene Oxidation

Keulks¹,

Rosynek²,

Daniel³

1971

Product R&D

View full text Add to dashboard Cite

show abstract

“…29. 30 It appears then that the approach can be adapted to the study of other non-enzymic catalysts incorporated in the stationary phases used in modern liquid chromatography.…”

Section: General Conclusionmentioning

confidence: 99%

Adaptation of the liquid chromatograph as a micro‐reactor; immobilised lactase kinetics

Melton

Bailey

Langer

1981

J. Chem. Technol. Biotechnol.

View full text Add to dashboard Cite

A catalytic, micro-reactor system has been developed using a modified liquid chromatograph with an ultraviolet spectrophotometer detector. The continuous flow, micro-reactor method has been adapted to the measurement of the activity of enzyme catalysts immobilised on porous glass beads. The system offers advantages over other systems in terms of convenience and provisions for steady-state analysis and control. The speed and ease of obtaining reproducible data make it feasible to study the efficacy of immobilisation techniques systematically and to explore liquid chromatographic reactor methods further. The kinetic data obtained were compatible with those found with other methods for the hydrolysis of o-nitrophenyl-p-D-galactopyranoside with immobilised lactase from the fungus Aspergi//us niger.

show abstract

“…Keulemans and Voge (1959), Ettre and Brenner (1960), and Hartwig (1964) have described a similar type of microreactor. Hall et al (1960) have devised a semiautomatic microreactor to make possible simple microscale evaluations of catalyst parameters. More recently, Harrison et al (1965) have devised a completely automatic precision microreactor to facilitate the acquisition of data on reaction kinetics, catalyst behavior, catalyst activity, and catalyst comparisons.…”

Section: Thermochromatographic Study Of Catalyst Formationmentioning

confidence: 99%

Applications of Gas Chromatography in Catalysis

Choudhary¹,

Doraiswamy²

1971

Product R&D

View full text Add to dashboard Cite

Applications ofGas Chromatography in Catalysis L. K. Doraiswamy was born on May 18, 1927, and received his MS in chemical engineering from the University of Wisconsin in 1950 and his PhD in chemical engineering from the same University in 1952. After working for a year with R. L. Carlisle Chemical and Manufacturing Company, Brooklyn, Dr. Doraiswamy joined the Chemical Engineering Division of National Chemical Laboratory at Poona, India, in 195j. At present, he is Head, Division of Chemical Engineering and Process Development. He has published about 50 papers, mostly in chemical reaction engineering and chemical engineering thermodynamics, and has been associated with the development of several processes at the National Chemical Laboratory which are now in operation in India. Vasant R. Choudhary, born Nov. 28, 19j.j, is a research fellow at the National Chemical Laboratory, Poona, India. He received his bachelor of science (1965) and master of science (1967) degrees in chemistry from the University of Poona in First Class. His fields of interest are kinetics and heterogeneous catalysis.

show abstract

Semiautomatic Microreactor for Catalytic Research

Cited by 39 publications

References 6 publications

Bismuth Molybdate Catalysts. Kinetics and Mechanism of Propylene Oxidation

Bismuth Molybdate Catalysts. Kinetics and Mechanism of Propylene Oxidation

Adaptation of the liquid chromatograph as a micro‐reactor; immobilised lactase kinetics

Applications of Gas Chromatography in Catalysis

Contact Info

Product

Resources

About