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US 6,955,797 B1Granted
Process for the preparation of ammonia
AssigneeHaldor Topsoe A/S
InventorChristian Speth
Life of this patent
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Abstract
Process for the preparation of ammonia comprising steps of contacting an ammonia synthesis gas with an ammonia synthesis catalyst arranged as reaction zone in one or more catalyst tubes; cooling the reaction zone by heat conducting relationship with a cooling agent; and withdrawing an ammonia rich effluent stream from the reaction zone.
Claims5
A process for the preparation of ammonia comprising the steps of:
- contacting an ammonia synthesis gas with an ammonia synthesis catalyst arranged as a reaction zone in one or more catalyst tubes;
- cooling the reaction zone by a heat conducting relationship with a cooling agent;
- and
- withdrawing an ammonia rich effluent stream from the reaction zone;
- wherein the cooling agent is selected from the group consisting of metals having a melting point below the temperature in the reaction zone, and wherein the cooling agent is circulated within cooling tubes, each cooling tube concentrically surrounding one of said catalyst tubes.
2 more elements
Dependencies are inferred from the claim text.