The role of chloride, oxygen and aluminum on corrosion resistance of coiled-pipes in tubular furnaces of oil refinery

Abstract

In this article has studied the negative roles of chlorides, dissolved oxygen and aluminum, which are existed directly in the oil or indirectly in the associated water on the corrosion resistance of the coiled-pipes of the tubular furnace inside KINEF refinery (Russia). In this paper, we studied the coiled-pipes of the ELOU-AVT-6 installation, which are subjected to severe destruction, and as a result, they are prematurely failed due to the negative effects of the studied impurities, which led to decrease their service life and the quality of oil products.

The role of multi-phase metal content in corrosion and premature failure mitigation of steel equipment in oil refiniers. Part 2

“…Because of the large amount of oil produced, we need large quantities of water, which is assumed to have special characteristics for the desalination process. That in most cases is difficult to be achieved, and this is replaced by available water sources, which are water containing mainly large amounts of chlorides and sulfates of sodium, calcium, magnesium and other salts [2,11,19,20].…”

“…There are a limited number of studies that have investigated the role of some metal cations, even simple ones, in the corrosion of steel in chloride containing media or others [6][7][8][9][10]. Anyway, they do not provide a general overview of the remaining cations, especially those with complex properties and overlapping effects, which requires much more research, especially on very complex media such as crude oil, that can provide a more complete understanding [11][12][13][14][15].…”

The role of multi-phase metal content in corrosion and premature failure mitigation of steel equipment in oil refiniers. Part 1

“…It is worth noting that the corrosion rate of the steel surface under the protective layer of thermal insulation can be tens of times faster than the corrosion rate of the same steel surface in natural environmental conditions [9].…”

“…Other conventional solutions are too expensive to be applied in oil refineries. It is better to seek for long-term unconventional solutions through a deeper strategy to reduce corrosion [8][9][10]. For this, it is necessary to provide a deeper conception of the corrosion mechanics that takes into account not only the role of the corrosive components, but also the components that increase the aggressiveness role of the corrosive components themselves.…”