Catalytic Hydrogenation of Ethylene

C2H4 + H2 → C2H6

Visão geral

Ethylene is reduced to ethane by addition of hydrogen across the double bond, catalyzed by a transition metal surface. Both hydrogen atoms add to the same face of the alkene (syn addition). The metal catalyst adsorbs both H₂ and the alkene, weakening bonds and facilitating the reaction.

Participantes

Papel Substância Coeficiente Estado
Reagente Ethylene C₂H₄ 1 (g)
Reagente Hydrogen H 1 (g)
Produto Ethane C₂H₆ 1 (g)

Exemplo do cotidiano

Margarine is made by partial hydrogenation of vegetable oils, converting liquid unsaturated fats to solid saturated fats.

Importância industrial

A hidrogenação catalítica é utilizada no refino de petróleo, produção de margarina, fabrico farmacêutico e síntese química fina. Paul Sabatier ganhou o Prémio Nobel de 1912 por este trabalho.

Propriedades

Tipo
Organic
Reversível
Não
Energia
Exotérmico
ΔH
-136,0 kJ/mol
Catalisador
Pt, Pd, or Ni

Reações relacionadas

Epoxidation of Alkenes (mCPBA) Swern Oxidation Oxidation of Secondary Alcohol to Ketone E2 Elimination (Dehydrohalogenation) Claisen Condensation (Ethyl Acetate) Aldol Condensation of Acetaldehyde Kolbe Electrolysis Baeyer-Villiger Oxidation Beckmann Rearrangement (Cyclohexanone Oxime) Dehydration of Ethanol

Frequently Asked Questions

What is the equation for Catalytic Hydrogenation of Ethylene?
The balanced equation is: C₂H₄ + H₂ → C₂H₆.
What type of reaction is Catalytic Hydrogenation of Ethylene?
Catalytic Hydrogenation of Ethylene is a organic reaction.
Is Catalytic Hydrogenation of Ethylene exothermic or endothermic?
Catalytic Hydrogenation of Ethylene is exothermic (releases energy). The enthalpy change (ΔH) is -136.0 kJ/mol.
What conditions are needed for Catalytic Hydrogenation of Ethylene?
This reaction requires a catalyst (Pt, Pd, or Ni).