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Solutia’s heat-transfer fluid for two solar projects in Spain  

By Gerald Ondrey |

Solutia, Inc. (St. Louis, Mo.; www.solutia.com) has been awarded contracts to supply its Therminol VP-1 synthetic heat-transfer fluid for two new solar power plants in Spain. The projects are each 50-MW solar power plants with thermal storage located in Extremadura, Spain (for more on these projects, see “Solar’s Second Coming,” Chem. Eng, March 2009, p. 18–20; www.chemengonline.com/news/4563.html). “Therminol heat-transfer fluids continue to be selected for concentrating solar power plants around the world,” notes Sharon Dunn, vice president of commercial services for Solutia’s Technical Specialties div. “These awards reinforce our capability as a global supplier and demonstrate our commitment to the growing solar industry.” Therminol heat-transfer fluid is used in the trough-shaped mirror assemblies to absorb the energy from concentrated sunlight, heating up to about 400°C. This stored heat can be used to produce energy during periods of little to no sunlight, including the evening hours. The heated Therminol is used to generate steam, which drives the power-generating turbines.    
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