Hydrocracking Science And Technology Pdf

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Handbook of Petroleum Processing pp Cite as. Hydrocracking is a flexible catalytic refining process that can upgrade a large variety of petroleum fractions. Hydrocracking is commonly applied to upgrade the heavier fractions obtained from the distillation of crude oils, including residue. The process adds hydrogen which improves the hydrogen to carbon ratio of the net reactor effluent, removes impurities like sulfur to produce a product that meets the environmental specifications, and converts the heavy feed to a desired boiling range. The chemistry involves the conversion of heavy molecular weight compounds to lower molecular weight compounds through carbon-carbon bond breaking and hydrogen addition.

Hydrocracking of Jatropha Oil over non-sulfided PTA-NiMo/ZSM-5 Catalyst

In petrochemistry , petroleum geology and organic chemistry , cracking is the process whereby complex organic molecules such as kerogens or long-chain hydrocarbons are broken down into simpler molecules such as light hydrocarbons, by the breaking of carbon -carbon bonds in the precursors. The rate of cracking and the end products are strongly dependent on the temperature and presence of catalysts. Cracking is the breakdown of a large alkane into smaller, more useful alkenes. Simply put, hydrocarbon cracking is the process of breaking a long chain of hydrocarbons into short ones. This process requires high temperatures. More loosely, outside the field of petroleum chemistry, the term "cracking" is used to describe any type of splitting of molecules under the influence of heat, catalysts and solvents, such as in processes of destructive distillation or pyrolysis. Fluid catalytic cracking produces a high yield of petrol and LPG , while hydrocracking is a major source of jet fuel , Diesel fuel , naphtha , and again yields LPG.

Hydrotreatment and Hydrocracking of Oil Fractions, Volume 127

The properties of catalyst were studied by N 2 adsorption-desorption, X-ray diffraction, and scanning electron microscopy. The reaction was conducted in cyclohexane under 0. Amounts of organic compounds which fall into the categories of homologues of benzene and naphthalene were detected.

The spherical FZSM-5 with a dendrimeric silica fiber possessed a high surface area m 2 , a wide pore diameter 2—20 nm , abundant strong acid sites and high catalytic activity towards cumene hydrocracking. If you are not the author of this article and you wish to reproduce material from it in a third party non-RSC publication you must formally request permission using Copyright Clearance Center. Go to our Instructions for using Copyright Clearance Center page for details. Authors contributing to RSC publications journal articles, books or book chapters do not need to formally request permission to reproduce material contained in this article provided that the correct acknowledgement is given with the reproduced material.

Hydrotreatment and Hydrocracking of Oil Fractions, Volume 127

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