- high-pressure cracking
- крекинг под высоким давлением
English-Russian scientific dictionary. 2008.
high-pressure cracking
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Cracking (chemistry) — In petroleum geology and chemistry, cracking is the process whereby complex organic molecules such as kerogens or heavy hydrocarbons are broken down into simpler molecules such as light hydrocarbons, by the breaking of carbon carbon bonds in the… … Wikipedia
cracking — /krak ing/, n. 1. (in the distillation of petroleum or the like) the process of breaking down certain hydrocarbons into simpler ones of lower boiling points by means of excess heat, distillation under pressure, etc., in order to give a greater… … Universalium
cracking — 1. A general term covering any of a variety of reactions and processes that convert high boiling fractions to more valuable lower boiling fractions. 2. A secondary refining process that uses heat and/or a catalyst to break down large chemical… … Petroleum refining glossary
Fluid catalytic cracking — (FCC) is the most important conversion process used in petroleum refineries. It is widely used to convert the high boiling hydrocarbon fractions of petroleum crude oils to more valuable gasoline, olefinic gases and other products.cite book|author … Wikipedia
Sulfide stress cracking — Sulfide stress cracking, or sulfide stress corrosion cracking (SSCC), is a special corrosion type, a form of stress corrosion cracking. Susceptible alloys, especially steels, react with hydrogen sulfide, forming metal sulfides and elementary… … Wikipedia
Ozone cracking — in natural rubber tubing Cracks can be formed in many different elastomers by ozone attack, and the characteristic form of attack of vulnerable rubbers is known as ozone cracking. The problem was formerly very common, especially in tires, but is… … Wikipedia
thermal cracking — 1. A refining process in which heat and pressure are used to break down, rearrange, or combine hydrocarbon molecules. Thermal cracking includes gas oil visbreaking, fluid coking, delayed coking, and other thermal cracking processes (e.g.,… … Petroleum refining glossary
Cold cracking — is a defect that occurs in welding and requires all the following preconditions: * susceptible microstructure ( e.g. martensite) * hydrogen present in the microstructure (hydrogen embrittlement) * service temperature environment (normal… … Wikipedia
petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… … Universalium
Welding — is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld puddle ) that cools to… … Wikipedia
List of pipeline accidents — The following is a list of pipeline accidents: This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. Contents 1 Bel … Wikipedia
