High-vacuum "dry" distillation of atmospheric resid

The reduction in petroleum feedstock resources has exacerbated the problem of exhaustive refining of atmospheric resid and has shrunken the boiler fue l market [1]. The degree of refining crude oil as a whole is also a functio n of the degree of proficiency of refining atmospheric resid, producing fue l or lube distillates. The maximum yields of these products are determined on one hand by the possibilities of their subsequent processing and on the other by the equipment and technical implementation of the subsystem for va cuum distillation of atmospheric resid (pressure losses, efficiency of one theoretical plate of the contact system, economy and ecology of the vacuum system - (VS), which ensues low residual pressure in the tower).