Page 263 - Principles of Catalyst Development

254 APPENDIX 5
3.1.6. Nitrogen
N2 + 3H2 = 2NHl (ammonia synthesis)

3.1.7. Sulfur dioxide
S02 + 3H2 = H2 S + 2H 2 0

3.2. Hydrogenolysis. Rupture of a X- Y bond by H2.
3.2.1. Rupture of a C -C bond

(hydrocracking)
C 2 H 6 + H2 = 2CH 4
3.2.2. Rupture of a C -0 bond
Inorganic:

CO + 3H 2 = CH 4 + H2 0 ( methanation)
3CO + 7H2 = C1H~ + 3H 20 (Fischer-Tropsch)
3CO + 6H 2 = C]H6 + 3H 20 (Fischer-Tropsch)
3CO + 6H 2 = C 1H7 0H + 2H 20 (Fischer-Tropsch)
Aliphatic:
CH,CHO + 2H2 = C 2H 6 + H 20

HCOOH + 2H2 = CH]OH + H 20
Aromatic:
C 6 HsOH + H2 = C 6 H(, -r H2 0
3.2.3. Rupture of a C-S bond
Alkanethiols:
C2HsSH + H2 = C2Ho + H 2S (hydrodes u If urization)
Alkyl sulfides:

(C}H';)2S + 2H2 = 2C 2H 6 + H 2S (hydrodes ulf urization)
Thiophenes:
C 4 H 4S + 4H2 = C 4H 10 + H 2S (hydrodesulfurzation)
3.2.4. Rupture of a C-N bond
C~H7N + nH2 = NH3 + mixed products

(hydroden itrogenation)
3.2.5. Rupture of a N-O bond
Aliphatic:
CH,N0 2 + 3H 2 = CH1NH 2 + 2H 20