Control System for Ammonia Synthesis Column

The Simulation and Control of Ammonia Unit of Shiraz Petrochemical Complex, Iran

The aim of this paper is the steady state and dynamic simulations of the ammonia unit of Shiraz petrochemical complex and system behavior study versus the feed flow rate change for producing a good quality product. The ammonia unit consists of the reformer units, shift converter units, carbon dioxide absorption unit, methanation unit, and ammonia synthesis unit. For this purpose, in the first s...

Performance evaluation and availability analysis of ammonia synthesis unit in a fertilizer plant

This paper discusses the performance evaluation and availability analysis of ammonia synthesis unit of a fertilizer plant. The fertilizer plant is a complex and repairable engineering system comprises of various units viz. shell gasification and carbon recovery, desulphurization, co-shift conversion, decarbonation, nitrogen wash and ammonia synthesis etc. One of the most important functionaries...

robust control of a high-purity disttilation column using synthesis

Synthesis and Characterization of Ru/Al2O3 Nanocatalyst for Ammonia Synthesis

Ru/Al2O3 catalysts were prepared by conventional incipient wetness impregnation as well as colloid deposition of RuCl3 precursor via in situ reduction with ethylene glycol (polyol) method on alumina support. The samples were characterized by TEM, XRD and TPR techniques. The catalytic performance tests were carried out in a fixed-bed micro-reactor under diffe...

مقایسه میزان حذف آمونیاک از هوا توسط شستشو‌دهنده تر پر شده با حلقه‌های راشیگ سرامیکی و پی‌ وی سی

Background: Different packing materials are used in wet scrubbers that each one has its own advantages and limitations. Common ceramic packing materials have high removal efficiency but they are heavy, fragile and high head loss along the bed. Finding a suitable replacement for these materials has always been concerned by researchers. The objective of the present study was to compare the ...