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Solubility of Water in Benzenes As a Function of Temperature

By Carl L. Yaws, Preetam Rane and Vishal Nigam Lamar University |

The solubility of water in hydrocarbons contained in crude oil is very important. This importance will increase in the future in view of processing, safety, hazard and environmental considerations focusing on product quality and equipment sustainability. The following brief discussion illustrates the importance. Any processing involving the lowering of temperature to values in the range of the freezing point of water may result in formation of solids (freezing of water or hydrate formation). Such solid formation will affect both fluid flow in piping and operational characteristics of equipment. For catalytic reactions, any water in the hydrocarbon may be a poison to the catalyst that promotes the hydrocarbon reaction. For reactions in general, any water in the reaction species may result in the formation of undesirable byproducts issuing from the hydrocarbon reaction. The presence of water in the product may be detrimental to quality. If sufficient water is in the product, it may prove to be unuseable. Results are presented here for solubility of water in benzenes as a function of temperature. A new correlation for water solubility is also presented that provides reliable solubility values down to very low concentrations (parts per…
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