thermal cracking

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., flexicoking). (US DOE 2007)
2. The breaking up of heavy oil molecules into lighter fractions by the use of high temperature without the aid of catalysts. See: cracking.

Petroleum refining glossary. 2013.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • thermal cracking — noun : cracking of petroleum or similar oils by means of heat and pressure alone distinguished from catalytic cracking; compare pyrolysis * * * thermal cracking, the application of steady heat and pressure in petroleum cracking …   Useful english dictionary

  • Thermal cracking —   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.,… …   Energy terms

  • thermal cracking — terminis krekingas statusas T sritis chemija apibrėžtis Naftos ar jos produktų skaidymas ≤ 600 °C temperatūroje ir ≤7 MPa slėgyje. atitikmenys: angl. thermal cracking rus. термический крекинг …   Chemijos terminų aiškinamasis žodynas

  • thermal cracking — /θɜməl ˈkrækɪŋ/ (say thermuhl kraking) noun an early oil refining process in which elevated temperatures and pressures are used to break down the complex organic molecules of crude oil into simpler molecules …  

  • 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

  • Thermal degradation of polymers — is molecular deterioration as a result of overheating. At high temperatures the components of the long chain backbone of the polymer can begin to separate (molecular scission) and react with one another to change the properties of the polymer.… …   Wikipedia

  • Thermal shock — is the name given to cracking as a result of rapid temperature change. Glass and ceramic objects are particularly vulnerable to this form of failure, due to their low toughness, low thermal conductivity, and high thermal expansion coefficients.… …   Wikipedia

  • Thermal depolymerization — (TDP) is a process using hydrous pyrolysis for the reduction of complex organic materials (usually waste products of various sorts, often known as biomass and plastic) into light crude oil. It mimics the natural geological processes thought to be …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”