Acid-Base Behavior in Hydrothermal Processing of Wastes - Final Report

[摘要] A major obstacle to development of hydrothermal oxidation technology has been a lack of scientific knowledge of chemistry in hydrothermal solution above 350 C, particularly acid-base behavior, and transport phenomena, which is needed to understand corrosion, metal-ion complexation, and salt precipitation and recovery. Our objective has been to provide this knowledge with in situ UV-visible spectroscopic measurements and fully molecular computer simulation. Our recent development of relatively stable organic UV-visible pH indicators for supercritical water oxidation offers the opportunity to characterize buffers and to monitor acid-base titrations. These results have important implications for understanding reaction pathways and yields for decomposition of wastes in supercritical water.

[发布日期] 2000-12-01 [发布机构] Univ. of Texas, Austin, TX (United States)

[关键词] Supercritical Water Oxidation;Waste Processing;Computerized Simulation;Oxidation;32 Energy Conservation, Consumption, And Utilization