Catalytic Hydrogenation of Ethylene

C2H4 + H2 → C2H6

Обзор

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.

Участники

Роль Вещество Коэффициент Состояние
Реагент Ethylene C₂H₄ 1 (g)
Реагент Hydrogen H 1 (g)
Продукт Ethane C₂H₆ 1 (g)

Пример из жизни

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

Промышленное значение

Catalytic hydrogenation is used in petroleum refining, margarine production, pharmaceutical manufacturing, and fine chemical synthesis. Paul Sabatier won the 1912 Nobel Prize for this work.

Свойства

Тип
Organic
Обратимая
Нет
Энергия
Экзотермическая
ΔH
-136,0 kJ/mol
Катализатор
Pt, Pd, or Ni

Связанные реакции

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).