Abstract: A process for production of ammonia includes: providing a reaction stream including carbon monoxide and hydrogen; passing the reaction stream and steam over a water gas shift catalyst in a catalytic shift reactor, forming a shifted gas mixture depleted in carbon monoxide and enriched in hydrogen; passing the shifted gas mixture with an oxygen-containing gas over a selective oxidation catalyst at ?175° C., forming a selectively oxidized gas stream with a portion of the carbon monoxide converted to carbon dioxide; removing some of the carbon dioxide from the selectively oxidized gas stream in a carbon dioxide removal unit; passing the carbon dioxide depleted stream over a methanation catalyst in a methanator to form a methanated gas stream, optionally adjusting its hydrogen:nitrogen molar ratio to form an ammonia synthesis gas; and passing the ammonia synthesis gas over an ammonia synthesis catalyst in an ammonia converter to form ammonia.

Abstract: A method for loading an axial-radial flow vessel containing a bed of a particulate catalyst having a radial-flow portion and an axial-flow portion supported on and in fluid communication with the radial flow portion, includes: (i) placing a first catalyst material in the radial-flow portion and (ii) placing a second catalyst material in the axial-flow portion, wherein the second catalyst material has a smaller particle size than the first catalyst material. A vessel loaded with first and second catalyst materials is also described.

Abstract: A process for increasing the hydrogen content of a synthesis gas including hydrogen and carbon oxides and having a carbon monoxide content ?45 mole % on a dry-gas basis, including the steps of: (i) combining the synthesis gas with steam to form a steam-enriched feed gas mixture (ii) passing the feed gas mixture at an inlet temperature in the range 220-370° C. over an iron-based water-gas shift catalyst to form a hydrogen-enriched shifted gas mixture having a carbon monoxide content 10 mole % on a dry gas basis, and (iii) recovering the hydrogen-enriched shifted gas mixture, where a portion of the hydrogen-enriched shifted gas mixture is recycled to the feed gas mixture.

Abstract: A process for increasing the hydrogen content of a synthesis gas including hydrogen and carbon oxides and having a carbon monoxide content?45 mole % on a dry-gas basis, including the steps of: (i) combining the synthesis gas with steam to form a steam-enriched feed gas mixture (ii) passing the feed gas mixture at an inlet temperature in the range 220-370° C. over an iron-based water-gas shift catalyst to form a hydrogen-enriched shifted gas mixture having a carbon monoxide content?10 mole % on a dry gas basis, and (iii) recovering the hydrogen-enriched shifted gas mixture, where a portion of the hydrogen-enriched shifted gas mixture is recycled to the feed gas mixture.

Abstract: A process for increasing the hydrogen content of a synthesis gas including hydrogen and carbon oxides and having a carbon monoxide content 45 mole % on a dry-gas basis, including the steps of: (i) combining the synthesis gas with steam to form a steam-enriched feed gas mixture (ii) passing the feed gas mixture at an inlet temperature in the range 220-370° C. over an iron-based water-gas shift catalyst to form a hydrogen-enriched shifted gas mixture having a carbon monoxide content 10 mole % on a dry gas basis, and (iii) recovering the hydrogen-enriched shifted gas mixture, where a portion of the hydrogen-enriched shifted gas mixture is recycled to the feed gas mixture.

Abstract: A process for increasing the hydrogen content of a synthesis gas including hydrogen and carbon oxides and having a carbon monoxide content ?45 mole % on a dry-gas basis, including the steps of: (i) combining the synthesis gas with steam to form a steam-enriched feed gas mixture (ii) passing the feed gas mixture at an inlet temperature in the range 220-370° C. over an iron-based water-gas shift catalyst to form a hydrogen-enriched shifted gas mixture having a carbon monoxide content ?10 mole % on a dry gas basis, and (iii) recovering the hydrogen-enriched shifted gas mixture, where a portion of the hydrogen-enriched shifted gas mixture is recycled to the feed gas mixture.