scholarly journals Intrinsic kinetic study of 1-butene isomerization over magnesium oxide catalyst via a Berty stationary catalyst basket reactor

RSC Advances ◽  
2020 ◽  
Vol 10 (60) ◽  
pp. 36667-36677
Author(s):  
Khunnawat Ountaksinkul ◽  
Sippakorn Wannakao ◽  
Piyasan Praserthdam ◽  
Suttichai Assabumrungrat
Keyword(s):  
Magnesium Oxide ◽  
Oxide Catalyst ◽  
Internal Mass ◽  
Intrinsic Kinetics ◽  
Recycle Reactor ◽  
Mass Transfers ◽  
Intrinsic Kinetic ◽  
Kinetics Of ◽  
Stationary Catalyst ◽  
Butene Isomerization

The intrinsic kinetics of 1-butene isomerization over a commercial MgO catalyst was studied by using a Berty-type reactor (gradient-less recycle reactor) without limitations of heat-, external mass-, and internal mass-transfers.

Effect of ionizing radiation on the kinetics of hydrogenation on the Ni-MgO mixed catalyst

1982 ◽  
Vol 47 (7) ◽  
pp. 1780-1786 ◽  
Author(s):  
Rostislav Kudláček ◽  
Jan Lokoč
Keyword(s):  
Experimental Data ◽  
Activation Energy ◽  
Liquid Phase ◽  
Ionizing Radiation ◽  
Oxide Catalyst ◽  
Absorbed Dose ◽  
Hydrogenation Rate ◽  
Solution Composition ◽  
Mixed Catalyst ◽  
Kinetics Of

The effect of gamma pre-irradiation of the mixed nickel-magnesium oxide catalyst on the kinetics of hydrogenation of maleic acid in the liquid phase has been studied. The changes of the hydrogenation rate are compared with the changes of the adsorbed amount of the acid and with the changes of the solution composition, activation energy, and absorbed dose of the ionizing radiation. From this comparison and from the interpretation of the experimental data it can be deduced that two types of centers can be distinguished on the surface of the catalyst under study, namely the sorption centres for the acid and hydrogen and the reaction centres.

Photocatalytic degradation intrinsic kinetics of gaseous cyclohexane in a fluidized bed photocatalytic reactor

2012 ◽  
Vol 39 (4) ◽  
pp. 1711-1726 ◽  
Author(s):  
Qijin Geng ◽  
Qingming Wang ◽  
Yunchen Zhang ◽  
Lintong Wang ◽  
Huiqin Wang
Keyword(s):  
Photocatalytic Degradation ◽  
Fluidized Bed ◽  
Photocatalytic Reactor ◽  
Intrinsic Kinetics ◽  
Kinetics Of

scholarly journals The study of the possibility of using domestic burnt magnesia in oil and petrol resistant rubber

2019 ◽  
Vol 59 (7) ◽  
pp. 63-68
Author(s):  
Nikolay F. Ushmarin ◽  
◽  
Evgeny N. Egorov ◽  
Nikolay I. Kol'tsov ◽  
◽  
...  
Keyword(s):  
Magnesium Oxide ◽  
Residual Deformation ◽  
Rubber Matrix ◽  
Standard Samples ◽  
Start Time ◽  
Technical Grade ◽  
Rubber Mixture ◽  
Roll Mill ◽  
Resistant Rubber ◽  
Kinetics Of

The article examines the oil-and-petrol resistant rubber mixture of type 7NO-68-1SK based on the combination of BNKS-18AMN grade butadiene-caoutchouc with polychloroprene caoutchouc of brand neoprene W. The effect of replacing imported burnt magnesia brand Remag AC on domestic burnt magnesia technical grade B on the properties of the rubber compound and vulcanizate was studied. The rubber mixture was prepared on a laboratory roll mill LB 320 160/160, and then its standard samples were vulcanized at 150 °C for 30 minutes in a two-story electrically heated press of the VP 400-2E brand. To establish the plasto-elastic properties of rubber mixture on the Mooney viscometer, MV 3000 was determined: the start time of the vulcanization, the time to reach the vulcanization mode, the initial maximum viscosity. To assess the kinetics of vulcanization of the rubber mixture on the rheometer MDR 3000 was determined: the start time of vulcanization, the time to reach the optimum vulcanization, the maximum torque. To assess the physicomechanical properties of rubber, the following were determined: conditional tensile strength; elongation at break; hardness; tear resistance and relative residual deformation under compression in accordance with the standards in force in the rubber industry. To assess the performance properties of rubber, changes in its mass were determined after aging in a mixture of isooctane + toluene, as well as standard liquid SJR–1. It has been shown that the introduction of burnt magnesia technical grade B into the rubber mixture does not lead to technological complications, magnesia is well distributed in the rubber matrix, and the magnesia agglomerates were not found on the rubber mixture sections. Replacement magnesium oxide m. Remag AC on burnt magnesia technical grade B has an impact on the plasto-elastic and rheometric properties of the rubber mixture. However of physicomechanical and operational properties vulcanizates of rubber mixture containing magnesium oxide m. Remag AC and burnt magnesiatechnical grade B, have almost the same values.

Kinetics of radiative recombination in magnesium oxide

1979 ◽  
Vol 20 (4) ◽  
pp. 1687-1699 ◽  
Author(s):  
R. T. Williams ◽  
J. W. Williams ◽  
Thomas J. Turner ◽  
K. H. Lee
Keyword(s):  
Magnesium Oxide ◽  
Radiative Recombination ◽  
Kinetics Of
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