Abstract
Zeolites are crystalline aluminosilicates with open-framework structures and have been widely used in refinery processes. One of the significant utilization processes is cracking heavy feedstocks into lighter fractions, which can be used as a feedstock for subsequent processes such as petrochemical applications. This work aimed to study the effect of the zeolite’s different Si/Al ratios on heavy crude cracking under different salt content conditions. The feedstock used for this study is a heavy hydrocarbon fraction contains a large amount of metal and salt. Two synthesized prototype catalysts were prepared and characterized by different physical–chemical methods (SEM–EDX, XRD, N2 physisorption, TPD and TGA). Later the catalysts were mixed with the crudes in a 500 ml autoclave and the catalytic activities were performed in a batch reactor at a temperature of 380–450 °C, 150 rpm, and nitrogen pressure of 10 MPa. The reaction’s outlet gases were analysed directly in online Gas Chromatography (GC). The results showed a wide range of impacts on catalyst performance and a noticeable increase in C2 and C3 yield for the desalted crude. Moreover, a higher C3 was produced for both catalysts at 430–450 °C due to the catalyst’s large pore.
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Al-Samhan, M., Al-Fadhli, J. Synthesis and Assessment of Y-Zeolite Catalyst for Direct Olefin Production from Heavy Feedstock: An Effect of Feed Composition. Catal Lett (2024). https://doi.org/10.1007/s10562-024-04635-9
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DOI: https://doi.org/10.1007/s10562-024-04635-9