Environmental Science & Engineering - www.esemag.com - November 2002
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Booming ethanol market increases demand for cost-efficient storage


Storage tanks at plant in South Bend, Indiana

Now that the US government is as interested in expanding ethanol production as the country’s corn growers have been for decades, the planning and construction of new ethanol plants is heating up.

Because of the growing concern regarding US dependence on foreign oil, ethanol is fast moving to the forefront of US efforts to produce its own renewable fuels right here at home. Earlier this year it was reported that 20 states already had 57 ethanol plants in production, with 18 more under construction and a building boom on the horizon.

The challenge now is to build the most cost-efficient plants for producing this energy-efficient fuel and to get the facilities up and running quickly.

Cost-efficiency was just one of the reasons why the New Energy Corp, a pioneer in producing ethanol from corn, selected Columbian TecTank dry bulk storage tanks for its plant in South Bend, Indiana. Initially New Energy Corp utilized two flat bottom silos but when additional storage was required they opted for four 38' diameter x 120' high (utilizing 45 degree hoppers) “smoothwall” silos, designed and engineered specifically for this application.

Randy Chrobot, Operations Manager for the New Energy Corp South Bend Plant stated, “with the expansion, we wanted hopper bottom silos to facilitate complete clean out and Columbian TecTank had the largest hopper silos on the market.”

Interior and exterior coatings were another consideration. These bolted tanks are factorycoated in a controlled environment using specialized thermally cured coating systems. Interior coatings are formulated to protect the product stored by enhancing the product flow, minimizing abrasion and protecting against corrosion.

Exterior coatings are selected and formulated for the exposed environment.

Columbian TecTank bolted smoothwall silos are master crafted for a precision fit in the field. To ensure quality, all components are fabricated in facilities that are IS0 9000 quality system certified.

Pre-engineered shop fabrication reduces the order to installation timeframe. Columbian TecTank can have fabricated materials on site within six weeks of order receipt.

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