scholarly journals Kinetic scheme of the synthesis of butadiene rubber on a modified lithium catalytic system taking into account its polycentricity

2021 ◽  
Vol 2094 (5) ◽  
pp. 052037
Author(s):  
E V Garifullina ◽  
V V Bronskaya ◽  
G A Aminova ◽  
G V Manuyko ◽  
O S Kharitonova ◽  
...  
Keyword(s):  
Mathematical Simulation ◽  
Catalytic System ◽  
Batch Reactor ◽  
Kinetic Scheme ◽  
Butadiene Rubber

Abstract A mathematical simulation of the synthesis of butadiene rubber in a batch reactor under the action of an organolithium catalytic system in the presence of a modifier and with the addition of toluene to a solvent is carried out. A kinetic scheme of the process is proposed and the velocity constants of the elementary stages are determined on the basis of the developed model.

Mathematical model of butadiene rubber synthesis over an organolithium catalytic system in a batch reactor

2011 ◽  
Vol 45 (4) ◽  
pp. 355-362
Author(s):  
G. A. Aminova ◽  
G. V. Manuiko ◽  
E. V. Garifullina ◽  
V. V. Bronskaya ◽  
T. V. Ignashina ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Catalytic System ◽  
Batch Reactor ◽  
Butadiene Rubber

scholarly journals Creating molecular weight distribution of butadiene rubber on neodymium-based catalytic system

2020 ◽  
Vol 734 ◽  
pp. 012066
Author(s):  
G V Manuyko ◽  
D V Bashkirov ◽  
V V Bronskaya ◽  
T V Ignashina ◽  
O S Kharitonova ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Molecular Weight Distribution ◽  
Catalytic System ◽  
Weight Distribution ◽  
Butadiene Rubber

scholarly journals Process Intensification of 2,2′-(4-Nitrophenyl) Dipyrromethane Synthesis with a SO3H-Functionalized Ionic Liquid Catalyst in Pickering-Emulsion-Based Packed-Bed Microreactors

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 796
Author(s):  
Hong Zhang ◽  
Minjing Shang ◽  
Yuchao Zhao ◽  
Yuanhai Su
Keyword(s):  
Ionic Liquid ◽  
Catalytic System ◽  
Batch Reactor ◽  
Process Intensification ◽  
Interfacial Area ◽  
Packed Bed ◽  
Pickering Emulsion ◽  
Synthetic Process ◽  
Functionalized Ionic Liquid ◽  
Surface Modified

A stable water-in-oil Pickering emulsion was fabricated with SO3H-functionalized ionic liquid and surface-modified silica nanoparticles and used for 2,2′-(4-nitrophenyl) dipyrromethane synthesis in a packed-bed microreactor, exhibiting high reaction activity and product selectivity. The compartmentalized water droplets of the Pickering emulsion had an excellent ability to confine the ionic liquid against loss under continuous-flow conditions, and the excellent durability of the catalytic system without a significant decrease in the reaction efficiency and selectivity was achieved. Compared with the reaction performance of a liquid–liquid slug-flow microreactor and batch reactor, the Pickering-emulsion-based catalytic system showed a higher specific interfacial area between the catalytic and reactant phases, benefiting the synthesis of 2,2′-(4-nitrophenyl) dipyrromethane and resulting in a higher yield (90%). This work indicated that an increase in the contact of reactants with catalytic aqueous solution in a Pickering-emulsion-based packed-bed microreactor can greatly enhance the synthetic process of dipyrromethane, giving an excellent yield of products and a short reaction time. It was revealed that Pickering-emulsion-based packed-bed microreactors with the use of ionic liquids as catalysts for interfacial catalysis have great application potential in the process of intensification of organic synthesis.

Constrained-Equilibrium Modeling of Ethanol Combustion in Air

2014 ◽  
Author(s):  
Ghassan Nicolas ◽  
Mohammad Janbozorgi ◽  
Hameed Metghalchi
Keyword(s):  
Batch Reactor ◽  
Kinetic Scheme ◽  
Equilibrium Modeling ◽  
Constrained Equilibrium ◽  
Ethanol Combustion ◽  
Rate Controlled ◽  
Ignition Characteristics

The rate-controlled constrained-equilibrium technique is used to study the ignition characteristics of mixtures of ethanol/air in an isolated batch reactor. A set of 16 constraints was identified which is able to reproduce the ignition characteristics very well within the specified range of thermodynamics conditions. The detailed kinetic scheme involves 37 species and 238 reactions without nitrogen chemistry.

Rate Controlled Constrained-Equilibrium (RCCE) Method Applied to Di-Methyl Ether (DME) Combustion

2008 ◽  
Author(s):  
Mohammad Janbozorgi ◽  
Donald Goldthwaite ◽  
Hameed Metghalchi
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Methyl Ether ◽  
Batch Reactor ◽  
Kinetic Scheme ◽  
Constrained Equilibrium ◽  
Rate Controlled ◽  
Ignition Characteristics

The rate-controlled constrained-equilibrium technique is used to study the ignition characteristics of Di-Methyl Ether (DME) under high pressure, low temperature in a batch reactor. A set of 9 constraints was identified which is able to exactly reproduce the ignition characteristics within the specified range of thermo dynamics conditions. The detailed kinetic scheme involves C1-C2 chemistry and comprises 54 species and 308 reactions without nitrogen chemistry.

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