The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 20, 1995
Filed:
Jun. 17, 1994
Applicant:
Inventors:
Richard W Krajicek, Houston, TX (US);
Nismanath Mehta, Houston, TX (US);
James R Duffy, Chesterfield, MO (US);
Assignee:
Serv-Tech, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ;
U.S. Cl.
CPC ...
134 221 ; 134 2214 ; 134 2219 ; 134 2215 ; 134 30 ; 134 31 ; 134 34 ; 134 11 ; 134 10 ; 134 39 ; 134 26 ; 134 19 ;
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.