| 摘要 |
A process for producing ammonia by reaction of a hydrogen and nitrogen-containing synthesis gas in the presence of a solid particulate catalyst for the reaction, includes conducting the reaction at pressures significantly lower than that of conventional ammonia synthesis, e.g., at about 30 to 70 atmospheres, in a fluidized bed of the catalyst. The synthesis gas is used to fluidize the catalyst and the resultant fluidized bed is preferably maintained under substantially isothermal conditions, e.g., by flowing a coolant liquid in indirect heat exchange relationship with the fluidized bed. Suitable catalysts for the process include activated iron catalysts which may be of very fine particle size.
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