Cracking of Octane (Thermal Cracking)

C8H18 → C4H10 + C4H8

Aperçu

Large hydrocarbon molecules like octane are broken down into smaller, more useful molecules through thermal or catalytic cracking. This process is essential in petroleum refining to produce gasoline, ethylene, and other petrochemicals from heavier crude oil fractions.

Participants

Rôle Substance Coefficient État
Réactif Octane C₈H₁₈ 1 (l)
Produit Butane C₄H₁₀ 1 (g)

Exemple du quotidien

The gasoline you pump into your car has been refined using cracking processes to break down heavy crude oil into lighter fuel components.

Importance industrielle

Catalytic cracking is the most important process in petroleum refining, converting heavy oil fractions into high-demand gasoline and petrochemical feedstocks. It processes billions of barrels of crude oil annually.

Propriétés

Type
Decomposition
Réversible
Non
Énergie
Endothermique
ΔH
72,0 kJ/mol
Catalyseur
Zeolite or silica-alumina

Réactions associées

Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Iron(II,III) Oxide (Direct Reduction) Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Thermal Decomposition of Mercury(II) Oxide Decomposition of Ammonium Nitrate

Frequently Asked Questions

What is the equation for Cracking of Octane (Thermal Cracking)?
The balanced equation is: C₈H₁₈ → C₄H₁₀ + C₄H₈.
What type of reaction is Cracking of Octane (Thermal Cracking)?
Cracking of Octane (Thermal Cracking) is a decomposition reaction.
Is Cracking of Octane (Thermal Cracking) exothermic or endothermic?
Cracking of Octane (Thermal Cracking) is endothermic (absorbs energy). The enthalpy change (ΔH) is 72.0 kJ/mol.
What conditions are needed for Cracking of Octane (Thermal Cracking)?
This reaction requires a catalyst (Zeolite or silica-alumina).