Veriansyah, Bambang Kim, Jae-Duck Lee, Jong-Chol 2024-01-21T00:33:56Z 2024-01-21T00:33:56Z 2021-09-02 2007-08-17 0304-3894 https://pubs.kist.re.kr/handle/201004/134193 A new design of supercritical water oxidation (SCWO) bench-scale reactor has been developed to handle high-risk wastes resulting from munitions demilitarization. The reactor consists of a concentric vertical double wall in which SCWO reaction takes place inside an inner tube (titanium grade 2, non-porous) whereas pressure resistance is ensured by a Hastelloy C-276 external vessel. The performances of this reactor were investigated with two different kinds of chemical warfare agent simulants: OPA (a mixture of isopropyl amine and isopropyl alcohol) as the binary precursor for nerve agent of sarin and thiodiglycol [TDG, (HOC2H4)(2)S] as the model organic sulfur heteroatom. High destruction rates based on total organic carbon (TOC) were achieved (> 99.99%) without production of chars or undesired gases such as carbon monoxide and methane. The carbon-containing product was carbon dioxide whereas the nitrogen-containing products were nitrogen and nitrous oxide. Sulfur was totally recovered in the aqueous effluent as sulfuric acid. No corrosion was noticed in the reactor after a cumulative operation time of more than 250 h. The titanium tube shielded successfully the pressure vessel from corrosion. (c) 2007 Elsevier B.V. All rights reserved. English ELSEVIER HIGH-TEMPERATURE AQUEOUS-SOLUTIONS WALL REACTOR CORROSION DECOMPOSITION BEHAVIOR WASTE KINETICS ALLOYS SUWOX Destruction of chemical agent simulants in a supercritical water oxidation bench-scale reactor Article 10.1016/j.jhazmat.2006.12.040 1 JOURNAL OF HAZARDOUS MATERIALS, v.147, no.1-2, pp.8 - 14 JOURNAL OF HAZARDOUS MATERIALS 147 1-2 8 14 scie scopus 000249136200002 2-s2.0-34447627317 Engineering, Environmental Environmental Sciences Engineering Environmental Sciences & Ecology Article HIGH-TEMPERATURE AQUEOUS-SOLUTIONS WALL REACTOR CORROSION DECOMPOSITION BEHAVIOR WASTE KINETICS ALLOYS SUWOX supercritical water oxidation OPA thiodiglycol double wall reactor