低阶煤浆电解过程中有机碳含量变化规律  

VARIATION OF TOTAL ORGANIC CARBON FROM LOW RANK COAL WATER SLURRY ELECTROLYSIS

作　　者：武英[1] 公旭中[2] 叶枫[1] 王明涌[2] 王志[2] 郭占成[3] 

机构地区：[1]新疆大学化学化工学院,乌鲁木齐830046 [2]中国科学院过程工程研究所,湿法冶金清洁生产技术国家工程实验室,北京100190 [3]北京科技大学钢铁冶金技术重点实验室,北京100083

出　　处：《煤炭转化》2013年第3期31-34,共4页Coal Conversion

基　　金：国家自然科学基金资助项目(51004090)

摘　　要：以NaOH为电解质,对水煤浆(CWS)进行了恒流电解,对电解煤浆制备溶水有机物(WSOCs)的可能性进行了研究.实验对影响总有机碳(TOC)含量的因素进行了考察,包括时间、温度、阳极材料以及NaOH浓度和煤浆浓度.结果表明,电解作用产生的TOC含量高于浸渍作用产生的TOC含量,带有电催化作用的金属电极对TOC含量的增长有促进作用,如Fe和Ni电解作用产生的TOC含量随时间的延长和温度的升高而增大,随NaOH浓度的升高而降低.在85℃,1A电流下电解6h后,滤液中的TOC含量达到1 717.2mg/L.此外,相对于单位质量的煤,滤液中的TOC含量随CWS浓度的升高呈先上升后下降的趋势.With NaOH as the supporting electrolyte, electrolysis of coal water slurry （CWS） were carried out with a constant current, so as to investigate the possibility of producing water soluber organic compounds （WSOCs） from electrolysis of （CWS）. Effects of different fac- tors on total organic carbon （TOC） content were examined, including time, temperature, anode materials and concentration of both NaOH and CWS. Within a basic electrolyte,the TOC content from electrolysis was larger than that of from soaking, and anode materials with electrocatalytic characteristics could increase the TOC content, such as Fe and Ni. The TOC content increased with time, temperature, while it decreased with increasing NaOH concentration. After electrolysis with a current density of 0.11 A/cm^2 for 6 h, and at a temperature of 85℃, the TOC content was 1 717.2 mg/L. In addition, the TOC content from unit mass coal after electrolysis was increasing with the NaOH concentration firstlv, and then decreased

关 键 词：电解 水煤浆 总有机碳 溶水有机物 

分 类 号：TQ517[化学工程] O646[理学—物理化学]