Process Modeling and Simulation of Ammonia Production from Natural Gas: Control and Response Analysis

Journal of Technology Innovations and Energy Pub Date : 2023-03-06 DOI:10.56556/jtie.v2i1.417

A. Abubakar, A. Royani, Ahmet OZAN GEZERMAN, Cemre Avşar, Sijan Devkota, I. Ferhoune

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Abstract

Optimal production of ammonia (NH3) using natural gas is necessary in order to make it available for wide range of applications including the manufacture of fertilizers, fuel for transportation and during synthesis of some chemicals. Achieving this would require strategic implementation of a control scheme to simulated ammonia production, capable of ensuring adequate realization of production targets. The work involves ASPEN Plus modeling, simulation, sensitivity analysis and control of NH3 production process. Steam/carbon ratio, conversion of CH4, removal of carbon dioxide (CO2) and carbon monoxide (CO), hydrogen/nitrogen ratio and heat exchanger and separator temperatures were identified as requiring control in units any of these specifically impacts. As a result, approximately 176 tons of NH3 was realized daily based on the simulation results and can be scaled-up using a calculated factor equivalent to 1.1375 to 200 tons/day capacity, in this design. Sensitivity analysis resulting in control of certain unit parameters is effective in ensuring process safety, maximum yield of important end-products and reduction in the cost of operation

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天然气制氨过程建模与仿真:控制与响应分析

利用天然气进行氨(NH3)的最佳生产是必要的，以便使其广泛应用，包括制造肥料，运输燃料和合成某些化学品。要实现这一目标，就需要战略性地实施模拟氨生产的控制方案，以确保充分实现生产目标。工作涉及到ASPEN Plus对NH3生产过程的建模、仿真、灵敏度分析和控制。蒸汽/碳比、CH4转化率、二氧化碳(CO2)和一氧化碳(CO)的去除、氢/氮比、热交换器和分离器温度被确定为需要在机组中控制的任何这些具体影响。因此，根据模拟结果，在本设计中，每天可以实现约176吨NH3，并且可以使用相当于1.1375至200吨/天的计算因子进行放大。通过灵敏度分析对某些装置参数进行控制，可以有效地确保过程安全、重要最终产品的最大产量和降低运行成本

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Journal of Technology Innovations and Energy Social Sciences and Management Studies-

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期刊介绍： Journal of Technology Innovations and Energy aims to report the latest developments and share knowledge on the various topics related to innovative technologies in energy and environment.