Cracking (chemistry) - Wikipedia
Steam cracking is a petrochemical process in which saturated hydrocarbons are broken down into smaller, often unsaturated, hydrocarbons. It is the principal industrial method for producing the …
Cracking Alkanes - Chemistry LibreTexts
2023年1月23日 · Thermal cracking gives mixtures of products containing high proportions of hydrocarbons with double bonds - alkenes. This is a gross oversimplification; tn fact, there are …
cracking alkanes - thermal and catalytic - chemguide
The alkane is brought into contact with the catalyst at a temperature of about 500°C and moderately low pressures. The zeolites used in catalytic cracking are chosen to give high …
Cracking of Alkanes | CIE AS Chemistry Revision Notes 2025
2023年11月21日 · Hydrocarbons 14.1 Alkanes Cracking of Alkanes. Crude oil is initially separated into fractions with similar boiling points in a process called fractional distillation. The heavier …
Cracking of Alkanes - A Level Chemistry Revision Notes - Save …
2021年6月17日 · When a large hydrocarbon is cracked, a smaller alkane and alkene molecules are formed. Eg. octane and ethene from decane . Long hydrocarbon fraction is cracked into …
Lesson Explainer: Cracking of Hydrocarbons | Nagwa
In this explainer, we will learn how to explain the catalytic cracking of alkanes and its importance and describe the process on an industrial scale. Cracking is the process of taking bigger …
Crude oil, hydrocarbons and alkanes - AQA Cracking and …
Cracking is used to convert long alkanes into shorter, more useful hydrocarbons. cracking The breaking down of large hydrocarbon molecules into smaller, more useful hydrocarbon …
Cracking & Alkenes | AQA GCSE Chemistry Revision Notes 2018
2024年7月11日 · Alkanes and alkenes have different molecular structures; All alkanes are saturated and alkenes are unsaturated; The presence of the C=C double bond allows alkenes …
Cracking hydrocarbons - Crude oil - GCSE Chemistry (Single …
The products of cracking include alkanes and alkenes close alkene Unsaturated hydrocarbon with a double bond between the carbon atoms., members of a different homologous series close …
Cracking hydrocarbons in liquid paraffin with a catalyst
Liquid paraffin is vaporised and passed over a hot pumice stone catalyst, producing a mixture of gaseous short-chain hydrocarbons. The mixture is flammable and decolourises bromine water …