Schroeder Industries aims to deliver
By Bryan Sims | November 21, 2011

Quality is the name of the game for biodiesel producers, and Schroeder Industries recognizes this full well as the Leetsdale, Pa.-based lubricant purification specialist is offering a novel backend purification technology, called GlyceRx, that delivers several significant advantages for current dry wash finishing systems.

GlyceRx is a custom-produced, synthetic absorption media with significant surface area, modified to ensure that a large concentration of reaction functional groups are present on the surfaces to attract water-soluble compounds such as glycerin, soaps and glycerides. The contaminants are held strongly in the matrix as the hydrophilic media are specifically designed to allow methyl esters to pass through.
GlyceRx was specifically designed to meet ASTM and EN quality specifications, be easy to use and work equally well within a full range of feedstocks. In existing systems, product manager Ed Naugle says GlyceRx media can be housed in equipment once used for dry wash, including resin towers, other dry wash media tanks and activated carbon vessels. For typical applications, treatment costs are estimated at approximately 3 cents per gallon of biodiesel processed.

Naugle says the media can absorb excess methanol, but he recommends methanol removal prior to the GlyceRx process to ensure the longest bed life possible.

“The lifespan of GlyceRx, like any other thing you using in biodiesel, depends on what you’re putting through it,” Naugle tells Biodiesel Magazine. “We had a target number in mind where we thought we’d be with efficiencies, and we pretty much hit it dead on, so we think we have a good product.”

In addition to its GlyceRx product offering, Schroeder Industries is offering the ICF and QCF diesel coalescing filters for diesel engines. Both the ICF and QCF are designed to remove water from diesel fuel that have been stored in bulk fuel tanks and for use in single-pass fuel-dispensing or multipass reservoir clean-up and continuous maintenance. Biodiesel acts as a surfactant when mixed with diesel that draws water, which can be problematic when stored in bulk fuel tanks mixed with ULSD diesel fuel because water can promote microbial growth in the tanks. Both of these issues can lead to plugged fuel filters that cause contamination to the entire fuel system in diesel engines.

The ICF and QCF coalescing filters circumvent this issue by utilizing proprietary media that are able to remove approximately 98 percent of emulsified or finely dispersed water in a single-pass, according to Naugle. The QCF is also available in a skid version packaged with a separate, 3-micron particulate filter that helps protect the coalescing component. “They can be used for diesel mixed with biodiesel too,” he says.

—Bryan Sims

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