Patent ID: 7392811

Claim:
A vessel comprising: (a) an interior surface arranged for holding a liquid; (b) an inlet line for receiving and transporting a mixture of gas and liquid phases; and (c) at least one delivery head for delivering a multiple phase treatment composition in a generally upward and outward target spray pattern to the interior surface at a liquid flow rate of about 2 to about 20 gallons per minute and a volumetric ratio of gas to liquid of between about 5:1 and 75,000:1 at atmospheric pressure, wherein the delivery head comprises: (i) a delivery arm attached to the inlet line, having an outlet from which the multiple phase treatment composition flows; (ii) a spray diverter positioned with respect to the outlet of the delivery arm to divert the multiple phase treatment composition flowing from the outlet generally upward and outward to create the target spray pattern; and (iii) an open area positioned with respect to the spray diverter to allow passage of the multiple phase treatment composition and to provide a back pressure of less than about 10 psig.