cracking gasoline

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• cracking — n. 1. the act of cracking something. Syn: fracture, crack. [WordNet 1.5] 2. (Chem.) the process of making lower molecular weight hydrocarbons from heavier hydrocarbons in petroleum, by exposure to heat and catalysts. It is used to convert heavier …   The Collaborative International Dictionary of English

• cracking — ☆ cracking cracking1 [krak′iŋ] adj. excellent; fine adv. Informal very cracking2 [krak′iŋ] n. the process of breaking down heavier hydrocarbons by heat and pressure or by catalysts into lighter hydrocarbons of lower molecular weight, as in… …   English World dictionary

• 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

• gasoline — gasolineless, adj. gasolinic /gas euh lee nik, lin ik/, adj. /gas euh leen , gas euh leen /, n. a volatile, flammable liquid mixture of hydrocarbons, obtained from petroleum, and used as fuel for internal combustion engines, as a solvent, etc.… …   Universalium

• 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 — Used in the oil and gas industry to refer to a variety of methods whereby a larger product is broken down into smaller by products. For example, crude oil can be processed (cracked) to produce lighter byproducts such as liquefied petroleum gas… …   Investment dictionary

• cracking — 1. noun The thermal decomposition of a substance, especially that of crude petroleum in order to produce petrol / gasoline. 2. adjective a) Gr …   Wiktionary

• 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

• cracking — crack•ing [[t]ˈkræk ɪŋ[/t]] n. 1) chem. (in the distillation of petroleum) the process of breaking down complex hydrocarbons into simpler compounds with lower boiling points, as gasoline Compare catalytic cracking 2) extremely; unusually: a… …   From formal English to slang

• gasoline — 1. A refined petroleum naphtha which by its composition is suitable for fuel in a reciprocating type internal combustion engine. ASTM D 439 specifies three grades for various types of motor vehicle operations. Straight run gasoline is the product …   Petroleum refining glossary

• cracking — I. adjective Date: 1830 very impressive or effective ; great II. adverb Date: 1903 very, extremely < a cracking good book > III. noun Date: 1868 …   New Collegiate Dictionary