Cleaning and liquid contact with solids – Processes – Including regeneration – purification – recovery or separation...
Patent
1994-09-23
1996-07-30
El-Arini, Zeinab
Cleaning and liquid contact with solids
Processes
Including regeneration, purification, recovery or separation...
134 2212, 134 2214, 134 2218, 134 2219, 134 21, 134 251, 134 30, 134 37, 134 40, 210167, 210259, B08B 310, B08B 500, B08B 900, B08B 908
Patent
active
055407846
ABSTRACT:
A pressurized closed flow cleaning system for cleaning the interior surface of industrial processing equipment. A pressure vessel contains an aqueous cleaning solution including the combination of enzymes and a surfactant. A supply conduit connects the pressure vessel with equipment to be cleaned and serves to supply the cleaning solution to the equipment, while a return conduit connects the equipment to the pressure vessel and acts to return the cleaning solution to the pressure vessel, thus providing a closed flow system. The solution is circulated through the closed flow system by a pump located in the supply conduit and the aqueous solution is heated to a temperature, preferably in the range of about 220.degree. F., to 260.degree. F., by a heat exchanger which is located downstream of the pump. Flow of the heated cleaning solution through the equipment to be cleaned will remove oil and solid contaminants. The system also includes a reverse flow manifold which interconnects the supply conduit and the return conduit and acts to selectively reverse the flow of cleaning solution through the equipment. The solution returned to the pressure vessel is maintained in a relatively quiescent state to permit the oil to settle out as an upper layer in the pressure vessel and an oil drain conduit is connected to the vessel for selectively draining oil from the vessel. The pressure vessel also includes a provision for removing benzene and other hydrocarbon gases from the circulating cleaning solution.
REFERENCES:
patent: 2711978 (1955-06-01), Groom
patent: 3025190 (1962-03-01), Groom et al.
patent: 3121027 (1964-02-01), Galanor
patent: 4592786 (1986-06-01), Williams et al.
patent: 5296161 (1994-03-01), Wiersema et al.
El-Arini Zeinab
United Laboratories, Inc.
LandOfFree
Pressurized closed flow cleaning system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressurized closed flow cleaning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressurized closed flow cleaning system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1655528