Granulated Urea Production from Natural Gas - Cost Analysis - Urea E42A

Book excerpt: This report presents a cost analysis of Urea production from natural gas via two integrated processes: conversion of natural gas to ammonia, followed by Urea synthesis from the ammonia generated. The ammonia synthesis portrayed is based on a new concept reported in the literature, while the Urea synthesis is similar to the mature Stamicarbon's carbon dioxide stripping technology. In the ammonia synthesis examined, oxygen carrier particles are circulated within a chemical looping comprising three reactors, respectively fed by steam, natural gas and steam. The outlet from the looping reactors is passed through compression and water separation steps to generate pure streams of nitrogen, hydrogen and carbon dioxide. Nitrogen and hydrogen are reacted to generate ammonia, further reacted with carbon dioxide to produce Urea. Urea Granules are obtained as final product. This report was developed based essentially on the following reference(s): Keywords: Carbon Dioxide Stripping, Fertilizers, Stamicarbon, DSM, Urea Granules, Chemical Looping