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The operating temperature range for the Haber process is 350 - 500°C. It is used for the production of ammonia at
Options
- A.20 MPa using Fe catalyst in an exothermic reaction
- B.0.1 MPa using Fe catalyst in an exothermic reaction
- C.20 MPa using Fe catalyst in an endothermic reaction
- D.20 MPa using zeolite catalyst in an endothermic
Answer
ASolution
The iron catalyst is used with added promoters for ammonia synthesis e.g. aluminum oxides, zirconium or silicone. These prevent sintering, and the catalyst becomes more porous. Iron catalysts quickly lose their activity, when heated above 520 ° C. Depending on the conversion required the pressure is around
100 - 1000 atm.
Hence, the correct option is (A).
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