Patent ID: 6632846
Filing Date: 2003-10-14
Classification: C07C,C10G,F01K,F25J,Y02E,Y02P

Abstract:
The process comprising separating oxygen from nitrogen from the air in an air separation unit, introducing a carbonaceous raw material, water and oxygen from the air separation unit into a syngas generator under syngas forming operating conditions, utilizing a shift reaction to form substantially syngas and carbon dioxide; introducing the syngas into a Fischer-Tropsch reactor and forming aliphatic hydrocarbons utilizing an iron-based Fischer-Tropsch reactor catalyst; separating the aliphatic hydrocarbons, carbon dioxide, carbon monoxide, and hydrogen; introducing nitrogen from the air separation unit and the syngas and hydrogen, into a methanator to form methane and then into an ammonia converter to produce ammonia; separating the ammonia; introducing the CO2 and ammonia formed into a urea synthesizer under urea-forming conditions and recovering the urea.