Cracking of Octane (Thermal Cracking)

C8H18 → C4H10 + C4H8

Visão geral

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.

Participantes

Papel Substância Coeficiente Estado
Reagente Octane C₈H₁₈ 1 (l)
Produto Butane C₄H₁₀ 1 (g)

Exemplo do cotidiano

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

Importância industrial

O craqueamento catalítico é o processo mais importante no refino de petróleo, convertendo frações pesadas em gasolina de alta procura e matérias-primas petroquímicas. Processa milhares de milhões de barris de petróleo bruto anualmente.

Propriedades

Tipo
Decomposition
Reversível
Não
Energia
Endotérmico
ΔH
72,0 kJ/mol
Catalisador
Zeolite or silica-alumina

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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).