Multi-objective optimization of aniline and hydrogen production in a directly coupled membrane reactor

Díaz, Víctor Hugo Grisales; Willis, M.J.

doi:10.1016/j.ijhydene.2022.01.128

Cited by 3 publications

(2 citation statements)

References 90 publications

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“…Aniline production can be carried out either in gaseous or in liquid phase. For the reactions in the vapor phase, fluidized bed and fixed bed reactors are usually used at a temperatures of 200-400 °C and a pressures of 1-10 bar with nitrobenzene conversion almost 99.9% [9,10]. Catalysts that were often used in the nitrobenzene hydrogenation process is in the form of metal, such as nickel (Ni) and copper (Cu).…”

Section: Introductionmentioning

confidence: 99%

Improving Heat Efficiency of Aniline Production Process by Modifying Heat Transfer Fluid Looping System in Heating and Cooling Process

Ahdan,

Saputra,

Ivan

et al. 2024

J. Chem. Eng. Res. Prog.

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The nitrobenzene hydrogenation process is a highly exothermic reaction which causes the product temperature will increase and then needs to be cooled down with a heat exchanger. The modification process is needed to improve the heat efficiency of the nitrobenzene hydrogenation process by utilizing the heat from reactor product. Heat transfer fluid is used as a medium of heat transfer for both heating and cooling, so that will create a looping heat transfer process. The looping system of heat transfer fluid receives heat from reactor product and then reuses the heat to reheat the recycled hydrogen and for other utilities, so additional energy for these processes is not required. The process modification was simulated using Aspen HYSYS and the comparison of heat efficiency between the basic and the modified process is calculated using the net-energy formula. The results obtained that the net-energy (NE) value for both basic and modified process is 96,714,359.832 kJ/h and 9.869 kJ/h. This shows that the modified process has better energy efficiency compared to the basic process as the net-energy value is closer to zero. Therefore, this modification increases the heat efficiency of the aniline production through nitrobenzene hydrogenation process. Copyright © 2024 by Authors, Published by Universitas Diponegoro and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Section: Introductionmentioning

confidence: 99%

Improving Heat Efficiency of Aniline Production Process by Modifying Heat Transfer Fluid Looping System in Heating and Cooling Process

Ahdan,

Saputra,

Ivan

et al. 2024

J. Chem. Eng. Res. Prog.

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“…have been able to enhance aromatic production by about 17%. Multiobjective optimization of aniline and hydrogen production in the MFMR was discussed by Grisales Diaz and Willis . The MFMR has been shown to reduce energy consumption 2.7 times, according to their research.…”

Section: Introductionmentioning

confidence: 99%

Improvement in Ammonia, Hydrogen, and Methyl Formate Synthesis Process by Employing Multiobjective Optimization of a Novel Multifunctional Membrane Reactor

2023

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This investigation analyzes the simultaneous production of hydrogen and ammonia as carbon-free energy carriers and methyl formate (MF) as a widely used chemical intermediate in a multifunctional membrane reactor (MFMR). The MFMR, based on Le Chatelier’s principle, has the advantage of changing the thermodynamic equilibrium by direct thermal coupling between ammonia synthesis and MF production and shifting the chemical equilibrium with the use of the Pd–Ag membrane. In the innovative configuration, the nitrogen conversion rate has been increased from 38.2 to 41.2% and the methanol conversion from 16.3 to 99.1%. Other benefits of the MFMR include providing the required energy for an endothermic reaction and eliminating a furnace and cooler in methanol dehydrogenation and ammonia synthesis reactors. Furthermore, it has been demonstrated that if the ammonia synthesis reaction is positioned at the center side of the MFMR, the nitrogen and methanol conversion are, respectively, 1.32 and 7.34% higher than when the reaction is located at the outer side of the MFMR. Likewise, the effect of operational process parameters such as inlet flow rates, inlet temperatures, and membrane thickness on the performance of each reaction has been studied. Utilizing multiobjective optimization (MOO), it has been observed that ammonia and MF production yields can reach 20.3 and 24.1%, respectively.

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An efficient visible-light-driven photoconversion of nitrobenzene to aniline over PtO-decorated WO3 nanocrystals prepared by a soft template-based method

El‐Shishtawy

Shawky

Mohamed

2023

Journal of the Taiwan Institute of Chemical Engineers

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Multi-objective optimization of aniline and hydrogen production in a directly coupled membrane reactor

Cited by 3 publications

References 90 publications

Improving Heat Efficiency of Aniline Production Process by Modifying Heat Transfer Fluid Looping System in Heating and Cooling Process

Improving Heat Efficiency of Aniline Production Process by Modifying Heat Transfer Fluid Looping System in Heating and Cooling Process

Improvement in Ammonia, Hydrogen, and Methyl Formate Synthesis Process by Employing Multiobjective Optimization of a Novel Multifunctional Membrane Reactor

An efficient visible-light-driven photoconversion of nitrobenzene to aniline over PtO-decorated WO3 nanocrystals prepared by a soft template-based method

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