ROTEC JSC Coatings center technicians have completed repairing critically important ammonia synthesis equipment — carbon dioxide absorber at the Togliattiazot OJSC ammonia production facility. The solution implemented by ROTEC will enable the enterprise to significantly reduce equipment downtime through increasing time between overhauls.
To ensure long-lasting protection against corrosive operating environment — amines solution, converted gas at high pressure — compositional metallized-paint coating providing exceptional corrosion and erosion resistance was applied to the inner surfaces of the absorber. Metal layers were applied using gas-thermal spraying technology that ensures high adhesion of the protective coating and stability of its parameters, and Hempadur 15570 impregnation eliminates through porosity.
To protect absorbers inner surfaces the maintenance services of Togliattiazot OJSC previously used special primers and enamels. However, this kind of an anti-corrosion coating was short-lived and needed to be regularly renovated, which entailed frequent scheduled maintenances and downtime.
ROTEC JSC (www.zaorotec.ru) is an industrial holding. It carries out service maintenance of gas and steam turbines, manufactures power-generating equipment, provides engineering services and develops a range of hi-tech projects in various industries, including power-plant engineering, car industry, aviation engine building.
Togliattiazot OJSC is one of the largest chemical enterprises of Russia, enters top ten world’s largest ammonia producers. The Company’s production capacities enable it to produce more than 3 mln. tons of ammonia and 960 thousand tons of urea per year.
In 2015, Togliattiazot OJSC revenue amounted to 63.3 bln. Russian rubles, net profit – 21.7 bln. Russian rubles. The enterprise is among 200 largest companies of Russia according to RBC and Expert-400 magazines ranking.