Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1994-06-17
1995-06-20
Simmons, David A.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 2214, 134 2219, 134 2215, 134 30, 134 31, 134 34, 134 11, 134 10, 134 39, 134 26, 134 19, B08B 300, B08B 900
Patent
active
054258146
ABSTRACT:
A quick cleaning method for hydrocarbon processing is described which avoids using the time honored steamout as a cleaning step by isolating the equipment to be cleaned from the rest of the hydrocarbon processing units, establishing a circulation loop and by pumping through the equipment an aqueous solution at an elevated temperature, of an extractant, such as a terpene, and a surfactant mixture which extracts and traps contaminants in an emulsion which is normally subjected to a high shearing step before recirculation to the equipment.
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Duffy James R.
Krajicek Richard W.
Mehta Nismanath
El-Arini Zeinab
Kirk, Jr. John R.
Serv-Tech, Inc.
Simmons David A.
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