Dynamic modeling and optimization of methanol partial oxidation to formaldehyde over Mo–Fe catalyst in an industrial isothermal reactor
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Hossein Zakeri Gheshmi
and
Mohammad Reza Rahimpour
Abstract
In this research, a one-dimensional heterogeneous model is developed to simulate the partial oxidation of methanol to formaldehyde over a molybdenum-iron catalyst in an industrial isothermal reactor at dynamic condition. The considered isothermal reactor is modelled based on the mass and energy balance equations considering catalyst deactivation. Based on the simulation results, decline in the catalyst activity from 1.0 to 0.73 decreases the rate of formaldehyde production rate from 94.9 kmol h−1 to 89.63 kmol h−1 during process run time. Subsequently, a multi-objective optimization problem is programmed to enhance formaldehyde productivity and minimize the production decline during process run time. To select the effective decision variables, a sensitivity analysis is performed based on the developed dynamic model. Then, the programmed multi-objective optimization problem is replaced with a single objective by the weighted sum method, and the problem is handled by the genetic algorithm method to determine the optimal trajectory of coolant temperature. The simulation results showed that the average formaldehyde production rate increases from 92.11 kmol h−1 to 95.22 kmol h−1 when the optimal conditions are applied to the reactor.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: No use of large language models, AI, and machine learning tools.
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Conflict of interest: The author states no conflict of interest.
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Research funding: No funding.
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Data availability: Not applicable.
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Articles in the same Issue
- Frontmatter
- Articles
- Kinetics and thermodynamics of methylene blue adsorption onto black plum seed-based graphene oxide
- Preparation of high-activity mineral powder from coal gangue through thermal and chemical activation
- Electrical performance of calcium ferrite in sintering by the assimilation melt breakover method
- Production of biodiesel from hemp oil and oleic acid with sulfonated camphor catalysts is to be evaluated with controlled tests in a diesel engine
- Removing fluorine and chlorine from zinc oxide dust by wet alkaline washing and studying fluorine occurrence states
- Epoxidation of sunflower oil via in situ generated hybrid peracids mechanism
- Oxidative conversion of lignin into monophenolic compound catalyzed by NaOH–NaAlO2/γ-Al2O3 under mild conditions
- Dynamic modeling and optimization of methanol partial oxidation to formaldehyde over Mo–Fe catalyst in an industrial isothermal reactor
- Testing of kaolinite/TiO2 nanocomposites for methylene blue removal: photodegradation and mechanism
- Investigation of gas-liquid flow hydrodynamics in the industrial-scale stirred tank with inclined impeller
Articles in the same Issue
- Frontmatter
- Articles
- Kinetics and thermodynamics of methylene blue adsorption onto black plum seed-based graphene oxide
- Preparation of high-activity mineral powder from coal gangue through thermal and chemical activation
- Electrical performance of calcium ferrite in sintering by the assimilation melt breakover method
- Production of biodiesel from hemp oil and oleic acid with sulfonated camphor catalysts is to be evaluated with controlled tests in a diesel engine
- Removing fluorine and chlorine from zinc oxide dust by wet alkaline washing and studying fluorine occurrence states
- Epoxidation of sunflower oil via in situ generated hybrid peracids mechanism
- Oxidative conversion of lignin into monophenolic compound catalyzed by NaOH–NaAlO2/γ-Al2O3 under mild conditions
- Dynamic modeling and optimization of methanol partial oxidation to formaldehyde over Mo–Fe catalyst in an industrial isothermal reactor
- Testing of kaolinite/TiO2 nanocomposites for methylene blue removal: photodegradation and mechanism
- Investigation of gas-liquid flow hydrodynamics in the industrial-scale stirred tank with inclined impeller
