PRODUCTION OF AMMONIA AT RELATIVELY LOW P,T: ASPEN PROCESS ECONOMIC ANALYSIS

ABSTRACT

PRODUCTION OF AMMONIA AT RELATIVELY LOW P,T: ASPEN PROCESS ECONOMIC ANALYSIS

Journal: Acta Chemica Malaysia (ACMY)
Author: Kamal I. Al-Malah, Hassa Salem Al Mansoori, Al Reem Mubark Al Mansoori, Mariam Ahmad Ali Al Hamadi, Ghbaisha Mohammed Al Mansoori
Print ISSN : 2576-6732
Online ISSN : 2576-6724

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.01.2018.01.05

The process of ammonia production from N2 and H2 with recycling of unreacted materials is investigated. The process is examined at relatively low pressure (48 bar) and temperature (190°C). CSTR isothermally runs under equilibrium condition. With recycling, it was found that a liquid product of NH3 with a purity of 99.3 wt. % was achieved. The waste is minimized with potential use as a fuel. Aspen process economic analysis was also carried out. It was found that such an investment project is profitable with a payout (payback) period of 4.2 years and modified internal rate of return (MIRR) of 21.5 %. The total capital cost was found to be $ 10,300,600 and the total operating cost to be $ 15,439,500/year for an annual production of ammonia of 30,046 tonne/year.