超临界水氧化法处理盐酸硫胺生产残釜液的中试研究  

Study on treatment for waste still liquor of hydrochloric thiamine manufactured by supercritical water oxidation

作　　者：韩美清[1] 马承愚[2] 王路光 张亮[2] 郭平毅[1] 

机构地区：[1]山西农业大学农学院,山西太谷030801 [2]东华大学环境科学与工程学院,上海200051 [3]河北省环境科学研究院,河北石家庄050051

出　　处：《现代化工》2008年第2期72-74,共3页Modern Chemical Industry

摘　　要：利用超临界水氧化中试装置对盐酸硫胺生产中排放的高浓度残釜液进行处理。试验结果表明:在反应温度为480℃、反应压力为26 MPa、氧化反应时间为300 s时,其COD去除率达到99.93%。处理后的排水达到国家规定的废水排放标准。同时对残釜液超临界水氧化过程中排放热流体的热值进行了计算,其值为1867.81 kJ/kg,并对该热流体热能利用进行了探讨。A pilot-scale experiment for treatment of waste still liquor by using supercritical water oxidation （SCWO） reactors is discussed. The experimental results show that when reaction temperature is 480℃, the pressure, 26 MPa, reaction time, for 300 seconds, the COD removal rate can reach 99.93 %. Effluent water quality can meet the National Wastewaterdischarging Standard. And the basic condition of self-igniting for the SCWO process is investigated, the thermal flow value left that has been figured out is 1 867.81kJ/kg, and the utilization of heat energy for discharged supercritical fluid is discussed.

关 键 词：超临界水氧化 残釜液 化学需氧量(COD) 高浓度有机废水 热能 

分 类 号：TK229.2[动力工程及工程热物理—动力机械及工程] X783[环境科学与工程—环境工程]