Corrosion resistance comparison of various carbon steel in inlet water of heat exchanger’s Kujang ammonia plant

Nikitasari, Arini; Priyotomo, Gadang; Royani, Ahmad; Sundjono,

doi:10.1063/5.0060004

Cited by 1 publication

(1 citation statement)

References 8 publications

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“…So, the set points for all eight heat exchangers contained in this design are 400℃ E-01, 550℃ E-02, 735℃ E-04, 400℃ E-05, 220℃ E-06, 199.8℃ E-07, 150 ℃ E-08 and 350℃ E-09. Even at desired operating conditions, corrosion effects of carbon steels in NH3 plants heat exchangers must be checked regularly, as they may be caused by the operating temperature, mechanical factors and the corrosive media (Nikitasari et al, 2020;Prifiharni et al, 2020). A separator works on the principle of 'different component having different boiling point'.…”

Section: Process Controlmentioning

confidence: 99%

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

Abubakar

Royani

Gezerman

et al. 2023

JTIE

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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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Section: Process Controlmentioning

confidence: 99%