A review of catalytic sulfur (VI) oxide decomposition experiments

Detailed kinetic modeling of homogeneous H2SO4 decomposition in the sulfur–iodine cycle for hydrogen production

“…Sulfur trioxide electrolysis is conducted to reduce the maximum operating temperature to 773-823 K [8,9]. The catalytic decomposition of SO 3 using nuclear energy [10][11][12] is one of the most promising methods.…”

“…), and intermetallic alloys (Ag-Pd [20]). Catalysts are exposed to high temperatures and corrosive gaseous systems (H 2 SO 4 /SO 3 /H 2 O/SO 2 /O 2 ) in extremely harsh reaction environments [10]. Pt-based catalysts have high initial activity; however, this activity declines significantly at temperatures > 1123 K during long-period tests [17,29].…”

Heat- and corrosion-resistant catalytic materials for environmental and energy applications

“…Metal oxides have been highlighted as economically viable catalysts. 37) However, their activity is not equal, and it follows this order: 38) None of these oxides and their composites satisfy the activity requirements of processes below 650°C. The SO 3 decomposition on metal oxide catalysts (MO/MO 2 ) proceeds via a sulfate intermediate as follows: 38) MO…”

Computational design of H 2 SO 4 decomposer combined with SOFC for thermochemical hydrogen production

“…), and intermetallic alloys (Ag-Pd) have been developed. [12][13][14][15][16] Sandia National Laboratories developed a lab-scale bayonet-type H 2 SO 4 decomposer (SAD), which contained three main parts: the boiler, superheater, and sulfur trioxide decomposer (STD), according to the operating temperature. 17 Nagarajan et al [17][18][19][20] proposed a numerical model based on computational fluid dynamics (CFD) to describe the fluid flow, species, and energy transfer in the SAD.…”