Catalytic behavior of macroporous resins in catalytic processes with water production. Activation and inhibition effects in the kinetics of the self-condensation of cyclohexanone

The study is based on the determination of the kinetic rates and assessment of self-purification of the Frio River, due to the uptake of organic load. The kinetic rates were calculated by applying differential and logarithmic methods on concentrations of water quality determinants present in each of the (7) reach of the river. The water system easily recovers the amount of oxygen, kd= 0.4, ka 3.2 d-1, only receives 27.7 Ton. d-1, the organic load, making high concentrations of carbon, ammonium and remain sediment. The length Influence of discharges, LIV- BOD yielded a mean per tranche of 10 km, compared to 3 km each way, means that the river can´t self- purification that need more length of travel. The study illustrates the modeling of the determinants of quality, developed by the QUAL2K, using the calculated rates.

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Applicability of Scaling Approach for Analysis of Pyrolysis and Gasification of Porous Structures Composed of Solid Fuel Particles

ISRN Mechanical Engineering ◽

10.5402/2012/207464 ◽

2012 ◽

Vol 2012 ◽

pp. 1-10

Author(s):

Aliaksandr Alevanau ◽

Pawel Donaj ◽

Weihong Yang ◽

Wlodzimierz Blasiak

Keyword(s):

Experimental Research ◽

Solid Fuel ◽

The Self ◽

Porous Structures ◽

The Best Approximation ◽

Self Organized ◽

Volumetric Models ◽

Fuel Particles ◽

Kinetics Of ◽

Reactive Properties

Experimental research on the pyrolysis and gasification of randomly packed straw pellets was conducted with an emphasis on the reactive properties of the shrinking porous structure of the pellets. The apparent kinetics of such pyrolysis was approximated by the random pore, grain, and volumetric models. The best approximation results were obtained with the grain and random pore models. The self-organized oscillations of the pellet conversion rate during pyrolysis were observed. Two complementary explanations of the phenomenon are proposed.

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Amino-acids and peptides. Part XI. The kinetics of the self-condensation of glycylglycylglycine methyl ester

Journal of the Chemical Society (Resumed) ◽

10.1039/jr9540000662 ◽

1954 ◽

pp. 662 ◽

Cited By ~ 9

Author(s):

P. S. Rees ◽

D. P. Tong ◽

G. T. Young

Keyword(s):

Amino Acids ◽

Methyl Ester ◽

The Self ◽

Kinetics Of

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Kinetics of the self-fouling oxidation of hydrogen sulfide on activated carbon

AIChE Journal ◽

10.1002/aic.690300629 ◽

1984 ◽

Vol 30 (6) ◽

pp. 1021-1025 ◽

Cited By ~ 9

Author(s):

Pan Zhenglu ◽

Hung-Shan Weng ◽

Feng Han-Yu ◽

J. M. Smith

Keyword(s):

Hydrogen Sulfide ◽

Activated Carbon ◽

The Self ◽

Oxidation Of Hydrogen ◽

Kinetics Of

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Modulation spectroscopy. Kinetics for the self-reactions of some α-aminoalkyl radicals in solution

Canadian Journal of Chemistry ◽

10.1139/v82-041 ◽

1982 ◽

Vol 60 (3) ◽

pp. 274-278 ◽

Cited By ~ 9

Author(s):

Paul R. Marriott ◽

Arlindo L. Castelhano ◽

David Griller

Keyword(s):

Absorption Spectrum ◽

Reaction Kinetics ◽

Unpaired Electron ◽

Rate Constants ◽

Lone Pair ◽

The Self ◽

Modulation Spectroscopy ◽

Alkyl Radicals ◽

Diffusion Controlled ◽

Kinetics Of

The optical spectra and reaction kinetics of some a-aminoalkyl radicals, RĊHN(CH2R)2; R≡H, Me, Ph, were measured in solution using the technique of modulation spectroscopy. These radicals undergo diffusion controlled self-reaction with rate constants [Formula: see text]. When R≡Ph, the absorption spectrum has a well defined maximum at 346 nm; ε = 3390 M−1 cm−1, while the spectra when R≡H or Me were less intense [Formula: see text] and tailed into the visible. These spectra are substantially red-shifted when compared with those of simple alkyl radicals, an effect which is thought to be due to the interaction between the unpaired electron and the lone pair of electrons on nitrogen.

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