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This is to certify that your paper entitled «Study of Cracking the Restrictions of the Refining Hardware through the Synergy between FCC and Hydrocracking Processing Units» was indexed with 23 pages, in the CIVILICA citation database, code COI:OILBCNF09_009, after evaluation and approval of the referees of the "the Ninth International Conference on Technology Development in Oil, Gas, Refining and Petrochemicals held in Tehran 2025.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.