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电解系统中采用峰谷分时运行存在的主要问题及采取的措施 总被引:1,自引:1,他引:0
电解系统中采用峰谷分时运行方式时,难以确定新上电槽隔膜中性层形成时间及槽内各项指标稳定运行时间;使得隔膜电压增高,电流效率下降;缩短了隔膜使用寿命;精盐水质量不能满足要求。通过加快试制改性隔膜,调整隔膜石棉绒的种类及配比,可解决上述问题,运行良好。 相似文献
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介绍ZMBCH - 2.7型复极式离子膜电解槽的基本结构和基本性能参数.通过与30 - DD350离子膜电解槽对比,说明ZMBCH - 2.7电解槽具有电流密度高、运行阴阳极压力高、内部循环、压滤机式密封的特点.给出运行初期电解槽发生的异常情况及处理措施. 相似文献
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我公司年产2万t复极式离子膜烧碱装置于1998年4月1日一次试车成功投产至今,已运行整整1年,合计生产离子膜烧碱15629.6t,目前装置运行稳定,各项经济指标均达到要求,现就该装置运行情况总结如下。 相似文献
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一、前言我厂烧碱车间自1966年10月10日采用立式石墨阳极电解槽投产以来,当初由于不善管理,电、炭板消耗比较高,电槽泄漏严重,电槽运转寿命亦短。由于电流升降频繁,开停车次数多,每经一次开停车后,槽电压和 相似文献
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采用膜极距技术对运行时间较长、严重超过质量保证期的ZMBCH-2.7复极离子膜电解槽进行升级换代,达到总电压和电解单元直流电耗大幅度降低的目的. 相似文献
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某公司搬迁工程和第2期填平补齐工程氯气总管压力不一致.利用工艺手段,通过1台氯气压缩机将2套系统并网,降低能耗. 相似文献
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利用PIMS生产优化模型研究了2套芳烃联合装置之间物料互供优化,分析了已有生产方案的局限性,找出了2套芳烃装置联合运行的最佳方案. 相似文献
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提出加强管理和控制,提高隔膜法烧碱生产中的电流效率,降低直流电耗。通过采用新技术、新工艺提升生产装置技术水平,达到节能降耗的目的,保证装置的经济运行,增强市场竞争力。 相似文献
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针对广东某氯碱厂隔膜法烧碱生产的运行情况,对发生的异常情况进行总结,列举出可能的原因,并提出相应的处理措施. 相似文献
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介绍了伍迪工艺离子膜法制碱的生产流程,同时阐述了在装置运行过程中企业为寻求更大的经济效益和安全效益进行的一系列技术改造。通过实施各项技术改造,装置的运行水平得到有效发挥,达到企业降本增效的目的。 相似文献
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河北盛华化工有限公司(以下简称"盛华化工")为降低吨碱交流电消耗,于2006年10月开始对48台30-Ⅲ型盒式金属阳极电解槽进行扩张阳极改性隔膜技术改造.改造后节能明显.但在最初半年的应用过程中出现了许多问题,如:电解液浓度低、电解槽副反应大、槽龄短、电解液滴定终点时呈黄色、开停车后电解液浓度骤升等问题.经过对工艺细节排查改造,恢复正常水平. 相似文献
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M. E. Henry Bergmann Tatiana Iourtchouk Johanna Rollin 《Journal of Applied Electrochemistry》2011,41(9):1109-1123
Bromide electrolysis was carried out on laboratory-scale cells in the range of 1–1,005 mg [Br−] dm−3 using boron-doped diamond (BDD) anodes. These studies were part of fundamental research activities on drinking water electrolysis
for disinfection. Synthetic water systems were mostly used in the experiments, which varied the temperature between 5 and
30 °C, the current density between 50 and 700 A m−2, and the rotation rate of the rotating anode between 100 and 500 rpm (laminar regime). Hypobromite and bromate were found
as by-products, as expected. Bromite was not detected. Higher bromate levels were formed at higher current density, but no
clear relationship was observed between bromate concentration and the rotation rate or temperatures between 5 and 30 °C. Bromate
yields higher than 90% were found at higher charge passed. Perbromate was found as a new potential synthesis or disinfection
by-product (DBP), but no perbromate was detected at the lowest bromide concentrations and under drinking water conditions.
The perbromate yield was about 1%, and somewhat lower when bromate was used as a starting material instead of bromide. At
a temperature of 5 °C more perbromate was detected compared with experiments at 20°. Approximately 20 times more perchlorate
was formed compared with perbromate formation in the presence of chloride ions of equimolar concentration. State of mechanistic
considerations is presented and a mechanism for perbromate formation is proposed. The reaction from bromate to perbromate
was found to be limited that is in contrast to the earlier studied chlorate-to-perchlorate conversion. In the measured concentration
range, reduction processes at the mixed oxide cathode showed a much higher impact on the resulting concentration for perbromate
than for bromate. 相似文献