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Investigation of non-ideal model for Oxidative Coupling of Methane reactor using proposed ideal reactor arrangement

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Abstract

In this research, the performance of the innovative non-ideal models for catalytic plug reactor design based on the oxidative coupling of methane (OCM) process was investigated. Using plug flow reactors (PFR) and continuous stirred tank reactors (CSTR), parallel (Model 1) and consecutive (Model 2) reactors in series were proposed. The models were validated based on experimental data from an OCM over La2O3/CaO catalyst in a fixed-bed reactor. The results from both models were in good agreement with the experimental data, while model 2 slightly outperformed model 1 compared to both. Moreover, the sensitivity of non-ideal models was investigated and compared with the results obtained from the ideal simulation model. The influence of the temperature and methane-to-oxygen (CH4/O2) ratio on the process performance was evaluated. OCM reactions showed better performance with increasing CH4/O2 ratios than temperature augmentation. The yield, selectivity, and conversion reached their maximum values at 1103 K, and with the increase in temperature, increasing and decreasing trends were observed. With a maximum error of 2.6%, the accuracy of the non-ideal models was better than that of the ideal model. It resulted in the finding that the proposed non-ideal modeling of reactors was useful for monitoring and supervising OCM processes.

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Authors and Affiliations

  1. Department of Chemical Engineering, Engineering Faculty, Velayat University, Iranshahr, Iran

    Abbas Ghareghashi

  2. Department of Chemical Engineering, College of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

    Sattar Ghader

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  1. Abbas Ghareghashi
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Correspondence to Abbas Ghareghashi.

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Ghareghashi, A., Ghader, S. Investigation of non-ideal model for Oxidative Coupling of Methane reactor using proposed ideal reactor arrangement. emergent mater. 6, 1651–1663 (2023). https://doi.org/10.1007/s42247-023-00540-w

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