Conceptual Coupled Process for Catalytic Cracking of High-Acid Crude Oil

Abstract

To process high-acid crude oil by catalytic cracking technology, a coupled process (FCD–FCC) involving fluid catalytic deacidification (FCD) of high-acid crude oil over a spent catalyst and fluid catalytic cracking (FCC) of heavy oil over a regenerated catalyst was proposed. Experiments were carried out in a confined fluidized bed reactor to test the feasibility of this process. The results indicate that the spent catalyst can be used for deacidification of high-acid crude oil to restrain the overcracking of light fractions. The optimal reaction conditions for the catalytic deacidification of Dar acidic crude oil are a temperature of 460 °C, a catalyst-to-oil ratio of 5, and a spent catalyst with a coke content of 1.26 wt %. Compared with the direct catalytic cracking of Dar crude oil over a regenerated catalyst, the yields of light oil and desired product increased by 6.10 and 6.78 wt % in the FCD–FCC process, respectively, and the olefin content of naphtha decreased by approximately 16 wt %, although the naphtha yield was lowered by 2.9 wt %. This strategy sheds new light on the processing of high-acid crude oil.

Co-processing of Algae Hydrothermal Liquidation of Oil with VGO via Fluid Catalytic Cracking: Process Simulation and Optimization

“…The quality of crude oil resources worldwide is deteriorating [1,2]. After 2020, heavy crude oil reserves are expected to account for almost half of all recoverable reserves [3].…”

Role of Catalyst in Optimizing Fluid Catalytic Cracking Performance During Cracking of H-Oil-Derived Gas Oils

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Enhancing the Conversion of Polycyclic Aromatic Hydrocarbons from Naphthenic Heavy Oil: Novel Process Design, Comparative Techno-Economic Analysis, and Life Cycle Assessment

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