Publications

Pressurized sulfuric acid decomposition experiments for the Sulfur-Iodine thermochemical cycle

Gelbard, Fred G.; Moore, Robert C.; Vernon, Milton E.; Parma, Edward J.; Rivera, Dion A.; Andazola, James C.; Naranjo, Gerald E.; Velasquez, Carlos E.; Reay, Andrew R.

A series of pressurized sulfuric acid decomposition tests are being performed to (1) obtain data on the fraction of sulfuric acid catalytically converted to sulfur dioxide, oxygen, and water as a function of temperature and pressure, (2) demonstrate real-time measurements of acid conversion for use as process control in the Sulfur-Iodine (SI) thermochemical cycle, and (3) obtain multiple measurements of conversion as a function of temperature within a single experiment. Acid conversion data are presented at pressures of 6 and 11 bars in the temperature range of 750 - 875 °C. The design for an acid decomposer section with heat and mass recovery of undecomposed acid using a direct contact heat exchanger are presented.