Operation and performance of the Supercritical Fluids Reactor (SFR)

Kinetics of formic acid decomposition in subcritical and supercritical water – a Raman spectroscopic study

“…The analysis of Raman cell measurements in the hot and cooled reactor sections are presented in [3] and [16]. Essentially, a sapphire or diamond window is necessary for optical access to the flow but maintaining the seal and structural integrity around the window is challenging with thermal expansion and thermal cycling of surrounding materials [17][18][19][20]. Researchers from Sandia National Laboratories reported this difficulty in using Raman spectroscopy in the high-temperature, high-pressure (HTHP) environment to study supercritical water oxidation [18][19][20].…”

Hydrogen peroxide decomposition in supercritical water

“…The hydrogen peroxide decomposition experiments presented here were conducted in Sandia's Supercritical Fluids Reactor (SFR), described in detail elsewhere (Hanush et al, 1995;Rice et al, 1996). For the present work, several modifications were made from the previous configuration, and consequently, a brief description of the main characteristics of the reactor is warranted here.…”

Gasification Kinetics in Continuous Supercritical Water Reactors

“…Resistive heaters, electric furnaces, and immersive fluidized baths have been used to reach the desired reaction temperatures [5,7,10,[13][14][15]. Resistive cartridge heaters are attractive options for preheating, as the tubing can be tightly wound around the cartridge to minimize heat loss.…”