Decomposition kinetics of dimethyl methylphospate(chemical agent simulant) by supercritical water oxidation

查看全文 作　　者：Bambang [1]VERIANSYAH;Jae-Duck [1]KIM;Youn-Woo [2]LEE

机构地区：[1]Supercritical Fluid Research Laboratory, Korea Institute of Science and Technology(KIST), 39-1 Hawolgok-dong, Seoungbuk-gu, Seoul 136-791, Korea.;[2]School of Chemical and Biological Engineering, Seoul National University(SNU), San 56-1 Sillim-dong, Gwanak-gu, Seoul 151-744, Korea

出　　处：《Journal of Environmental Sciences》索引2006年第18卷第1期,共4页

摘　　要：Supercritical water oxidation(SCWO) has been drawing much attention due to effectively destroy a large variety of high-risk wastes resulting from munitions demilitarization and complex industrial chemical. An important design consideration in the development of supercritical water oxidation is the information of decomposition rate. In this paper, the decomposition rate of dimethyl methylphosphonate(DMMP), which is similar to the nerve agent VX and GB(Sarin) in its structure, was investigated under SCWO conditions. The experiments were performed in an isothermal tubular reactor with a H2O2 as an oxidant. The reaction temperatures were ranged from 398 to 633℃ at a fixed pressure of 24 MPa. The conversion of DMMP was monitored by analyzing total organic carbon(TOC) on the liquid effluent samples. It is found that the oxidative decomposition of DMMP proceeded rapidly and a high TOC decomposition up to 99.99% was obtained within 11 s at 555℃. On the basis of data derived from experiments, a global kinetic equation for the decomposition of DMMP was developed. The model predictions agreed well with the experimental data. 关键词：超临界水氧化化学处理 DMMP 废水处理化学反应总有机碳

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Decomposition kinetics of dimethyl methylphospate(chemical agent simulant) by supercritical water oxidation

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