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:
Mar. 25, 1997
Filed:
Jul. 13, 1995
Applicant:
Inventors:
Jennifer A DeWalls, Spring, TX (US);
Mark S Binford, The Woodlands, TX (US);
Assignee:
BetzDearborn Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210708 ; 208188 ; 208311 ; 210728 ; 210737 ; 252331 ; 252358 ;
Abstract
The present invention provides for methods for treating bottoms sludge and water-oil interphase emulsions present in a containment vessel by injecting into the sludge an effective resolving amount of an oil-based demuislfier. In a preferred embodiment, the containment vessel is a desalter containing a bottoms sludge layer, a water/brine layer, a water-oil interphase emulsion layer and a hydrocarbon layer and the demulsifier is injected through the mud wash header.