Предремонтная подготовка резервуаров, осложненная пирофорными отложениями

Abstract

Purpose. One of the most important measures to reduce fire and explosion safety of hot and repair work at oil and oil products storage tanks is premaintenance works. Most oil tank fires occur during this stage. Premaintenance works are significantly complicated by corrosion deposits on tank inner surface. When conducting premaintenance works, there is a risk of spontaneous combustion of pyrophoric sediments. The most frequent cases of catching fires occur at high-sulfur oil tanks with pyrophoric sediments, and that requires a new approach to conducting this technological operation. Methods. Methods of comparison, description and generalization were used in the study. The information basis for the study was scientific sources, regulatory documents and reports of fire analyses at tank farms. Findings. Analysis of practice of operating tanks for storing high-sulfur oil, as well as data on tank fires shows that current approach to premaintenance works is ineffective. It is necessary to adjust current regulatory documentation in the field of improving fire and explosion safety at petrochemical industry facilities and develop new, more effective means of anti-corrosion protection for tanks with high-sulfur oil. Research application field. Analysis and development of regulatory- technical base will allow finding a new approach to methods of premaintenance works and hot works to improve fire and explosion safety at tank farms for storing high-sulfur oil. Conclusions. In-depth studying the problem of storing high-sulfur oil in tanks and the issue of its purification will allow us to find more modern and high-quality methods for conducting premaintenance works to ensure fire and explosion safety at tank farms.