2013 Buyers' Guide 2013 Buyers' Guide - Filtration News

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Absorbents | Adsorbents Removing Water from Petroleum with Super Absorbent Polymers By Erin L. Johnson, Gelok International F or years, society has been taught the benefits of water to support life and to sustain processes. However, for any number of industries that depend on the consumption and use of hydrocarbon fluids, water is an ever-present nemesis. But why is controlling water such an essential consideration According to a Machinery Lubrication news article by Martin Williamson, the evil effects of water are many. Water can: •Cause contamination of the oil’s base stock, encouraging oxidation, viscosity increase and foaming •Affect the additive package through water washing and hydrolysis, leading to acids and additive depletion •Encourage rust and corrosion •Cause increased wear as a result of aeration, changes in viscosity resulting in film strength failure, hydrogen blistering and embrittlement, and vaporous cavitation •Generate other contaminants in the oil such as waxes, suspensions, carbon and oxide insolubles and even micro-organisms Mr. Williamson suggests that systemic water contamination control is available utilizing one or several of the following five separation techniques shown in Table 1. Consequently, a series of innovative adjacent markets and manufactures have taken action to create products that mitigate the presence of water in hydrocarbon fluids. Gelok International Corporation is one such player. Since the mid 1980’s, the company has been a premier manufacturer of thin, low-dusting, super absorbent laminates and composites suitable for the polymer absorption technique specified in the table above. Their custom designs contain super absorbent polymers, which have been impregnated between layers of cellulosic substrate resulting in an absorbent, roll good media: Gelok’s roll products are ultra-thin and easily introduced into conv e n t i o n a l spin-on or cartridge type filters via co-pleating with other filtration media. Gelok laminate The 20 • August 2012 • www.filtnews.com Table 1 benefits of using Gelok laminates include: • Extraordinarily thin profile • Customizable substrate selections • Customizable SAP loading values • Wide absorbency performance range (100-1500 g/sq ft) • Light weight input resulting in a compact end product • Provide excellent wicking direct to core • Consistent finished product profile • Easy-to-use commercial roll good form • Low start-up costs
The photo series above depicts the time lapse response of the Gelok laminate to water exposure. Unexposed Gelok laminate is an ultra-thin sheet of cellulosic material. However, as soon as it is exposed to an aqueous fluid (or a hydrocarbon fluid containing free or emulsified water), the SAP within the laminate sheet reacts and a gel is formed. Free and emulsified water stay locked in the gel layer and the hydrocarbon fluid can proceed through the system. Functionally, the Gelok media is capable of absorbing both free and emulsified water as the contaminated hydrocarbon fluid passes through the filtration element. This is accomplished via the super absorbent polymer component of the Gelok laminate media. Superabsorbent polymers are commonly made from the polymerization of acrylic acid blended with sodium hydroxide in the presence of an initiator to form a poly-acrylic acid sodium salt (sometimes referred to as sodium polyacrylate). These polymers (resembling www.filtnews.com • August 2012 • 21
Page 1: I N T E R N A T I O N A L FILTRATIO
Page 6: Editorial Advisory Board Editorial
Page 10 and 11: Association | News Engineering Meri
Page 12: Industry | Events Whitehouse Scient
Page 16 and 17: Cover Story | A2Z Filtration The Im
Page 18 and 19: Absorbents | Adsorbents Absorbing F
Page 20 and 21: Absorbents | Adsorbents water remov
Page 24 and 25: Absorbents | Adsorbents table salt)
Page 26 and 27: Testing | Filter Performance Determ
Page 28 and 29: Testing | Filter Performance (vendo
Page 30: Testing | Filter Performance by IBR
Page 33 and 34: to provide full physical adsorption
Page 35 and 36: ases, presentations are grams adsor
Page 37 and 38: Table 5. Polynomial Equations from
Page 39 and 40: I N T E R N A T I O N A L FILTRATIO
Page 41 and 42: Filter Winding Machinery. .........
Page 43 and 44: Air Filtration Equipment: Cabin Fil
Page 45 and 46: Center Cores: Rosedale Products, In
Page 47 and 48: Dust Collectors: IBIS International
Page 49 and 50: Filter Caps: Rosedale Products, Inc
Page 51 and 52: Matrix Separations LLC PO Box 16369
Page 53 and 54: Filter Manufacturer: Air Filters In
Page 55 and 56: Filter Products: Dexmet Corporation
Page 57 and 58: Filters Automatic: Filters & Strain
Page 59 and 60: Glue Machines: Laminating Machinery
Page 61 and 62: Manufacture Flanges: Membrane-Filtr
Page 63 and 64: fiber & polyester filter media with
Page 65 and 66: Plastic Netting and Tubing: convert
Page 67 and 68: Pleaters Rotary Type: Seals: A2Z Fi
Page 69 and 70: Sonobond Ultrasonics 1191 McDermott
Page 71 and 72: Phoenix Wire Cloth, Inc. 585 Stephe
Page 73 and 74:
www.filtnews.com • August 2012
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2013 Buyers' Guide 2013 Buyers' Guide - Filtration News

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