A Novel Cyclic Reaction System Involving CaS and CaSO4for Converting Sulfur Dioxide to Elemental Sulfur without Generating Secondary Pollutants. 2. Kinetics of the Reduction of Sulfur Dioxide by Calcium Sulfide Powder

2002 ◽  
Vol 41 (13) ◽  
pp. 3087-3091 ◽  
Author(s):  
Hong Yong Sohn ◽  
Byung-Su Kim
Keyword(s):  
Sulfur Dioxide ◽  
Elemental Sulfur ◽  
Reaction System ◽  
Calcium Sulfide ◽  
Secondary Pollutants ◽  
Cyclic Reaction ◽  
Kinetics Of

scholarly journals The kinetics of a novel cyclic reaction system and its use in the assay of polynucleotide phosphorylase or adenosine diphosphate plus adenosine triphosphate

1968 ◽  
Vol 106 (4) ◽  
pp. 887-895 ◽  
Author(s):  
R. J. H. Wilson ◽  
M. D. Lilly
Keyword(s):  
Specific Activity ◽  
Reaction System ◽  
Adenosine Diphosphate ◽  
Polynucleotide Phosphorylase ◽  
Quick Method ◽  
First Order ◽  
First Order Kinetics ◽  
Cyclic Reaction ◽  
Optical Assay ◽  
Kinetics Of

1. A sensitive new method is described for the rapid optical assay of polynucleotide phosphorylase in crude bacterial extracts of low specific activity. 2. The assay is non-linear with time and a quick method for determining the approximate activity by using a nomograph is given. 3. The dependence of the assay on Mg2+ concentration was investigated and the conditions that gave first-order kinetics were determined. 4. The theoretical behaviour of the system was examined mathematically and shown to tend to a simple dynamic steady state, under certain conditions. 5. The potential uses of such cyclic systems are discussed.

Kinetics of the catalytic hydrodesulphurization reaction system; hydrogenolysis of thiophene

1980 ◽  
Vol 45 (10) ◽  
pp. 2728-2741 ◽  
Author(s):  
Pavel Fott ◽  
Petr Schneider
Keyword(s):  
Atmospheric Pressure ◽  
Active Sites ◽  
Flow Reactor ◽  
Kinetic Equations ◽  
Reaction System ◽  
Reaction Products ◽  
Molybdenum Catalyst ◽  
Cobalt Molybdenum Catalyst ◽  
Kinetics Of ◽  
Reaction Schemes

Kinetics have been studied of the reaction system taking place during the reaction of thiophene on the cobalt-molybdenum catalyst in a gradientless circulation flow reactor at 360 °C and atmospheric pressure. Butane has been found present in a small amount in the reaction products even at very low conversion. In view of this, consecutive and parallel-consecutive (triangular) reaction schemes have been proposed. In the former scheme the appearance of butane is accounted for by rate of desorption of butene being comparable with the rate of its hydrogenation. According to the latter scheme part of the butane originates from thiophene via a different route than through hydrogenation of butene. Analysis of the kinetic data has revealed that the reaction of thiophene should be considered to take place on other active sites than that of butene. Kinetic equations derived on this assumption for the consecutive and the triangular reaction schemes correlate experimental data with acceptable accuracy.

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