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Sustainability
Volume 18
Issue 17
10.3390/su18178730
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Retraction of Sustainability 2021, 13(17), 9990.
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Retraction

RETRACTED: Syah et al. The Economic Evaluation of Methanol and Propylene Production from Natural Gas at Petrochemical Industries in Iran. Sustainability 2021, 13, 9990

by
Rahmad Syah
1,
Afshin Davarpanah
1,
Marischa Elveny
2,*,
Amir Ghasemi
3 and
Dadan Ramdan
1
1
Data Science & Computational Intelligence Research Group, Universitas Medan Area, Medan 20223, Indonesia
2
Data Science & Computational Intelligence Research Group, Universitas Sumatera Utara, Medan 20155, Indonesia
3
School of Engineering, College of Environment, University of Tehran, Tehran 14179-35840, Iran
*
Author to whom correspondence should be addressed.
Sustainability 2026, 18(17), 8730; https://doi.org/10.3390/su18178730
Submission received: 24 August 2026 / Accepted: 25 August 2026 / Published: 26 August 2026
Versions Notes
The journal retracts the article titled “The Economic Evaluation of Methanol and Propylene Production from Natural Gas at Petrochemical Industries in Iran” [1], cited above.
Following publication, concerns were brought to the attention of the Editorial Office relating to the accuracy and relevancy of several citations in this publication [1].
In accordance with the journal’s standard procedures, the Editorial Office and the Editorial Board conducted an investigation that confirmed the presence of a significant number of citations that lacked sufficient relevance to this study [1], as well as scientific inconsistencies in the presentation of data across multiple tables and figures.
As a result, the Editorial Board has lost confidence in the reliability of the data and findings reported in this article [1] and has decided to retract this publication as per MDPI’s retraction policy.
This retraction was approved by the Editor-in-Chief of the journal Sustainability.
The authors have been informed of this retraction but did not provide a comment on this decision.

Reference

  1. Syah, R.; Davarpanah, A.; Elveny, M.; Ghasemi, A.; Ramdan, D. RETRACTED: The Economic Evaluation of Methanol and Propylene Production from Natural Gas at Petrochemical Industries in Iran. Sustainability 2021, 13, 9990. [Google Scholar] [CrossRef] [Scilit]
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

Share and Cite

MDPI and ACS Style

Syah, R.; Davarpanah, A.; Elveny, M.; Ghasemi, A.; Ramdan, D. RETRACTED: Syah et al. The Economic Evaluation of Methanol and Propylene Production from Natural Gas at Petrochemical Industries in Iran. Sustainability 2021, 13, 9990. Sustainability 2026, 18, 8730. https://doi.org/10.3390/su18178730

AMA Style

Syah R, Davarpanah A, Elveny M, Ghasemi A, Ramdan D. RETRACTED: Syah et al. The Economic Evaluation of Methanol and Propylene Production from Natural Gas at Petrochemical Industries in Iran. Sustainability 2021, 13, 9990. Sustainability. 2026; 18(17):8730. https://doi.org/10.3390/su18178730

Chicago/Turabian Style

Syah, Rahmad, Afshin Davarpanah, Marischa Elveny, Amir Ghasemi, and Dadan Ramdan. 2026. "RETRACTED: Syah et al. The Economic Evaluation of Methanol and Propylene Production from Natural Gas at Petrochemical Industries in Iran. Sustainability 2021, 13, 9990" Sustainability 18, no. 17: 8730. https://doi.org/10.3390/su18178730

APA Style

Syah, R., Davarpanah, A., Elveny, M., Ghasemi, A., & Ramdan, D. (2026). RETRACTED: Syah et al. The Economic Evaluation of Methanol and Propylene Production from Natural Gas at Petrochemical Industries in Iran. Sustainability 2021, 13, 9990. Sustainability, 18(17), 8730. https://doi.org/10.3390/su18178730

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