Fouling of Nearly Incompatible Oils

摘要

the fouling of heat exchangers by asphaltenes in petroleum crude oils is found to be cased not only by incompatibvle crude oil mixtures but also by mixtures that are nearly incormpatible. It is reasoned that the tendency for asphaltenes to adsorb on heated metal surfaces increases as The oil mixture approaches compositions at which asphaltenes precipitate. Based upon data for Mixtures of Forties and Souedie crude oils, this region of near-incompatibility occurs for rations Of the solubility blending number to the insolubility umber that are between 1.0 and 1.4 These Numbers can be measured on individual oils using the oil compatibvility model and tests and Calculated for mixtures.