HOW FEED STOCK QUALITY AFFECTS THE FOULING PROCESSES IN HDS INSTALLATIONS

Often, in practice accumulation of deposits on the surface of the main technological equipment can be observed, making it difficult to maintain the operational parameters of a unit or installation. Classical fouling can be defined as accumulation of unwanted deposits associated with corrosive and other oxidation processes, resulting in accumulation of inorganic or organic material on the surface of the technological equipment. In many cases, this process make difficult the heat transfer, leading to increased fuel consumption, loss of production and increased maintenance costs. Deposits can stratify in equipment, located in different places of the installation in furnaces, heaters, condensers, fractionating columns, reboilers, compressors, in separate sections of this equipment, and especially in stagnant areas.