The scientists describe laboratory scale experiments in which addition of inexpensive iron powder to oil shale, combined with heating with electric heating coils, substantially increased oil production by more than 100 percent for some shales. "The experimental and numerical results show that field-scale oil recovery from oil shales by electrical heating could be technically and economically viable," the report concludes. MTS
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"Experimental and Numerical Simulation of Oil Recovery from Oil Shales by Electrical Heating"
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Tayfun Babadagli, Ph.D.
University of Alberta
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Calorie-free natural sweetener moves one step closer to use in the U. S.
Journal of Agricultural and Food Chemistry
Researchers in Georgia are reporting an advance toward the possible use of a new natural non-caloric sweetener in soft drinks and other food products in the United States. Stevia, which is 300 times more potent than sugar but calorie-free, is already used in some countries as a food and beverage additive to help fight obesity and diabetes. Their study is scheduled for the October 8 issue of ACS' Journal of Agricultural and Food Chemistry, a bi-weekly publication.
Indra Prakash, John F. Clos, and Grant E. DuBois note that so-called stevia sweeteners, derived from a South American plant, have been popular for years as a food and beverage additive in Latin America and Asia. But several factors have prevented its use as a sweetener in Europe and the United States. Those include concerns about safety and hints that expo
|Contact: Michael Bernstein|
American Chemical Society