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氯化氢催化氧化制氯气即Deacon过程,是一种实现工业副产氯化氢循环利用的可持续发展途径。本文介绍了氯化氢催化氧化催化剂、反应器及设备材质的研究进展,分析了氯化氢催化氧化的发展前景。 相似文献
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在氯化氢合成炉系统中,氢气是过量反应的,因此可以根据氯气的量来推算氯化氢的产量。本文讲述了通过氯气的流量推算氯化氢产量的方法,并列出了氯气在不同压力及流量下对应的氯化氢的产量,为实际生产提供理论依据。 相似文献
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鉴于生物质电厂给排水的特点,以国能惠民电厂为例,探讨生物质电厂给排水的典型设计,对电厂各类用水进行了全面规划,采取了多种节水措施,建立合理的水量平衡系统,做到了一水多用,废水回用,努力降低全厂各用水系统的用、排水量. 相似文献
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Ernest L. Abel 《Journal of chemical ecology》1993,19(12):2891-2901
Two experiments were conducted. In the first, male rats were immersed for 25 min in fresh water or water previously swum in by another rat. Control rats were not immersed in water. Rats tested in water previously swum in by another rat were significantly less immobile than rats tested in fresh water. Water immersion resulted in significant increases in serum corticosterone, glucose, and phosphorus levels, a decrease in potassium levels, and a higher phosphorus/potassium ratio, compared to nonimmersed controls regardless of water condition. When the two water-immersed groups were compared, rats tested in previously swum water had significantly higher glucose and significantly lower potassium levels and a higher phosphorus/potassium ratio than rats tested in fresh water. Immobility times were significantly correlated with the phosphorus/potassium ratio. In the second experiment, blood gases were measured prior to testing and at 25 min after immersion in rats tested in fresh and previously swum water. Rats in soiled water hypoventilated to a significantly greater extent than rats in fresh water but did not differ significantly in blood oxygenation. These two studies demonstrate that alarm chemosignals can produce physiological effects in conspecifics. 相似文献
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Interpenetrating polymer networks (IPNs) composed of hyaluronic acid and poly(vinyl alcohol) hydrogels were prepared, and the influence of water and the drying kinetics were investigated. The IPN hydrogels were characterized with thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The glass‐transition temperatures of the IPN hydrogels decreased with increasing water content. The bound water was the sum of the nonfreezing bound water and freezing bound water. From the DSC melting curves, the values of the total water and freezing bound water were evaluated for IPN hydrogels containing large amounts of water. At the same time, the bound water value was estimated with TGA. In the TGA curves, one‐step and two‐step weight losses, corresponding to free water and nonfreezing bound water, were observed. The bound water of the hydrophilic polymers broke the hydrogen bonding between the hydroxyl groups of the polymers. The swollen IPN hydrogels exhibited relatively high bound water contents (43.04–59.17%) by DSC and TGA. The bound water contents of the dry IPN hydrogel films were 10.2–15.29% by TGA. The drying reaction rate constant of the IPN hydrogel increased with increasing temperature. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 1467–1472, 2004 相似文献
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超滤和反渗透联用的海岛饮用水处理示范装置 总被引:1,自引:0,他引:1
针对某些海岛山塘水库含盐量不断变化的水质特点,开发超滤和反渗透联用的海岛淡水净化/咸水淡化一体化装置。结果表明,对于电导率约580μS.cm-1,浊度约20 NTU,CODMn约5.9 mg.L-1的原水,当超滤和反渗透产水比为1:1时,超滤产水电导率基本不变,浊度约0.1 NTU,CODMn降低约40%,混合产水电导率接近于原水的一半,浊度约0.04 NTU,CODMn约1.7 mg.L-1。此外,无论原水电导率如何变化,均可通过调节产水比使最终产水达到生活饮用水卫生标准。介绍了工艺流程、运行情况,并对运行数据进行分析。 相似文献
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采用主成分分析法(PAc)对东张水库水质进行综合评价,分析了其水质的时间和空间变化特征及污染因子对水质的贡献,以揭示东张水库水质变化的时空分布规律和水质污染特征.分析评价结果表明:水质时间特征分析可由三个主成分反映。东张水库库心断面在2004-2009年时间跨度上表现为2005年水质污染综合评价排序最高。水质最好;20... 相似文献
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传统的工业供水网络设计往往仅考虑单个水源或多个水源的单水质参数的优化问题,没有考虑多水质参数和多水源以及相应的原水预处理系统。提出了工业多水源供水网络的超结构模型,并对原水预处理系统进行了数学建模,考虑了不同水源的水质特点,相应的预处理设备产水率和水质的移除率,将工业水阱进行了分类并考虑了多种水质参数的约束。以沿海某炼油企业的多水源供水网络为例,利用商业软件GAMS进行建模求解。优化结果表明,该炼油企业最佳的供水方案是综合使用地表水,市政中水和地下水作为水源,不使用市政供水和海水。该案例优化的供水网络年度化费用为638.42万元。 相似文献