Patent · US Active

Methods especially useful for separating water-hydrocarbon emulsions having low interfacial tensions

US8177984B2 · kind B2 · utility

12Cited by

3References

7Claims

0Family size

Assignee

Ahlstrom Corporation · FI

Inventors

Christine Stanfel · Rose Lane, US
Farina Diani Pangestu · Madisonville, US

Key dates

Filing date	Oct 27, 2011
Grant date	May 15, 2012
Priority date	—
Expiry date	Oct 27, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S210/05
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Separation media, separation modules and methods are provided for separating water from a water and hydrocarbon emulsion and include a fibrous nonwoven coalescence layer for receiving the water and hydrocarbon emulsion and coalescing the water present therein as a discontinuous phase to achieve coalesced water droplets having a size of 1 mm or greater, and a fibrous nonwoven drop retention layer downstream of the coalescence layer having a high BET surface area of at least 90 m2/g or greater sufficient to retain the size of the coalesced water droplets to allow separation thereof from the hydrocarbon.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.