Patent ID: 9656195
Date: 2017-05-23
CPC Classifications: B01D

Claim:
1. A coalescence media for separation of water from hydrocarbon fuel and water emulsions, the coalescence media comprising an emulsion-contacting sheet formed as a single dry layer from a wet-laid process using a homogenously distributed, wet-laid furnish of: (a) a mixture of fibrous components of (a1) at least one type of a first group of cellulose and/or cellulose-based fibers, (a2) at least one type of a second group of fibers selected from glass microfibers having diameters ranging from 0.2-5.5 microns, and (a3) at least one type of a third group of fibers selected from fibrillated fibers, and (b) at least one non-fibrous component selected from the group consisting of (b1) a dry strength additive, and (b2) a wet strength additive, wherein the fibrous components of the coalescence media constitute at least about 70% of the coalescence media, and wherein the coalescence media includes a pore structure sufficient to coalesce water droplets having a droplet size of <3.5 μm and thereby effect separation of water from biodiesel blends or surfactant stabilized water-hydrocarbon emulsions in a range of about 85% or more water removal efficiency (WRE) according to SAE J1488 Emulsified Water/Fuel Separation Test Procedure over an extended time period of more than 150 minutes.