Fluid catalytic cracking technology and operations pdf

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fluid catalytic cracking technology and operations pdf

Email: ln. Fluid catalytic cracking FCC is one of the major conversion technologies in the oil refinery industry. FCC currently produces the majority of the world's gasoline, as well as an important fraction of propylene for the polymer industry. In this critical review, we give an overview of the latest trends in this field of research. These trends include ways to make it possible to process either very heavy or very light crude oil fractions as well as to co-process biomass-based oxygenates with regular crude oil fractions, and convert these more complex feedstocks in an increasing amount of propylene and diesel-range fuels. After providing some general background of the FCC process, including a short history as well as details on the process, reactor design, chemical reactions involved and catalyst material, we will discuss several trends in FCC catalysis research by focusing on ways to improve the zeolite structure stability, propylene selectivity and the overall catalyst accessibility by a the addition of rare earth elements and phosphorus, b constructing hierarchical pores systems and c the introduction of new zeolite structures. In addition, we present an overview of the state-of-the-art micro-spectroscopy methods for characterizing FCC catalysts at the single particle level.
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5-Refining Processes - ( FCC ): (1/2) Fuildized Catalytic Cracking Unit - Aspen hysys 7.3

Fluid catalytic cracking

Refineries vary by complexity; more complex refineries have more secondary conversion capability, meaning they can produce different types of petroleum products. Fluid catalytic cracking FCC , a type of secondary unit operation, is primarily used in producing additional gasoline in the refining process. Unlike atmospheric distillation and vacuum distillation , which are physical separation processes, fluid catalytic cracking is a chemical process that uses a catalyst to create new, smaller molecules from larger molecules to make gasoline and distillate fuels. The catalyst is a solid sand-like material that is made fluid by the hot vapor and liquid fed into the FCC much as water makes sand into quicksand. Because the catalyst is fluid, it can circulate around the FCC, moving between reactor and regenerator vessels see photo. The FCC uses the catalyst and heat to break apart the large molecules of gas oil into the smaller molecules that make up gasoline, distillate, and other higher-value products like butane and propane.

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Fluid catalytic cracking FCC is one of the most important conversion processes used in petroleum refineries. It is widely used to convert the high-boiling, high-molecular weight hydrocarbon fractions of petroleum crude oils into more valuable gasoline , olefinic gases, and other products. It also produces byproduct gases that have more carbon-carbon double bonds i. This portion of crude oil is often referred to as heavy gas oil or vacuum gas oil HVGO. In the FCC process, the feedstock is heated to a high temperature and moderate pressure, and brought into contact with a hot, powdered catalyst. The catalyst breaks the long-chain molecules of the high-boiling hydrocarbon liquids into much shorter molecules, which are collected as a vapor. Oil refineries use fluid catalytic cracking to correct the imbalance between the market demand for gasoline and the excess of heavy, high boiling range products resulting from the distillation of crude oil.

PDF | The fluid catalytic cracking (FCC) technology is one of the pillars of on cracking catalyst during FCC process, including metals, sulfur.
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PDF Ebook Fluid Catalytic Cracking Technology and Operation, by Joseph W. Wilson

Fluid Catalytic Cracking




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