Methods for producing synthesis gas for ammonia production

摘要

A method for producing synthesis gas and ammonia by forming a synthesis gas mixture; separating solids from the synthesis gas mixture; subjecting the synthesis gas mixture to a shift reaction and separating the reaction products by a pressure swing adsorption unit. The hydrogen and nitrogen separated in the pressure swing adsorption unit are fed to an ammonia reactor to produce ammonia.

主权项

1. A method for producing synthesis gas for the production of ammonia comprising the steps:
a) Feeding a hydrocarbon and steam to a reformer; b) Feeding the reaction products of the reformer to a separation unit whereby solids are separated from gases; c) Feeding the solids to a regenerator and the gases to a shift reactor; d) Recycling a flue gas stream comprising carbon dioxide, steam, nitrogen, and CaO from the regenerator through a cyclone to the reformer; e) Feeding the products of the shift reactor to a pressure swing adsorption unit; f) Feeding hydrogen and nitrogen separated from the gases in step e) to an ammonia reactor; and g) Recovering ammonia from the ammonia reactor.