共查询到19条相似文献，搜索用时 156 毫秒
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苯的溴代反应实验的改进江苏如皋中学（２２６５００）于厥冰一、实验装置如下图：Ａ．反应器；Ｂ．洗气瓶；１．液溴；２．铁；３．苯；４．ＣＣｌ４；５．蒸馏水二、实验步骤１．在反应器Ａ内装入铁屑和苯，分液漏斗内加入液溴，洗气瓶Ｂ内加入ＣＣｌ４、锥形瓶内装入水... 相似文献
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炉内员喷钙尾部增湿活化脱硫技术是控制燃煤SO2排放最有发展前景的技术之一，采用先进的颗粒速度图像(PIV)则定了活化反应器液固三相流场，利用二次开发的软件，经过图像处理得到活化应器内脱硫剂颗粒和雾化水滴数量浓度，研究结果对于深入理解活化反应器内浆滴促进脱硫机理，优化结构和运行参数具有重要意义。 相似文献
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用干燥管作反应器的实验研究瞿硕增，杨茂山（临沂九中，临沂农校）干燥管质硬、透明，球体内可以盛反应物，粗端管口配上橡皮塞，细端配上导气管，用作反应器，做一些除干燥气体以外的初中化学实验，具有操作方便，现象明显，节省药品等优点．现介绍几例．１碳酸氢铵分解... 相似文献
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基于质子交换膜燃料电池的天然气微型热电联产系统的核心单元是重整制氢反应器．设计研发了一种集蒸汽发生和天然气水蒸汽氧化重整于一体的制氢反应器,实验测试了典型工况下反应器的性能,以及操作条件（水碳比、空碳比、空速）对反应器性能的影响．在典型操作条件下,反应器平均床层温度为630℃,反应器出口合成气的物质的量组成为H。40．61％、N。37．63％、CO5．56％、CH43．62％、C0212．58％,甲烷的转化率为92．56％,反应器能量利用效率88．3％．实验表明这种制氢反应器可用干微型天蚨气执由群声桑缔 相似文献
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高效发光二级管光生物反应器的研制及光合自养螺旋藻的培养 总被引：2，自引：0，他引：2
采用红光ＧａＡｌＡｓＨＢ－ＬＥＤ集成光电板作为内部光源，设计研制了６Ｌ光电板式光生物反应器，并建立了恒容连续培养体系．通过控制不同稀释率Ｄ的培养，确定Ｄ为０．１５６ｄ－１，可使藻的生物量浓度稳定在４．９８ｇＬ－１；光源品质及光照强度对螺旋藻的光合自养生长及光合色素的影响的研究表明，在ＧａＡｌＡｓＨＢ－ＬＥＤ红光培养条件下，螺旋藻生长快，干物质积累多，每克干物质量的藻含捕光色素藻胆蛋白基本稳定在１３０ｍｇ．研究结果表明，ＨＢ－ＬＥＤ具有高光照强度、低功耗的特点，对于新型光生物反应器的开发研制，蕴藏着巨大的经济价值 相似文献
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To understand the absorption mechanism of nitrogen dioxide into a sodium sulfide solution, a stirred tank reactor with a plane gas-liquid interface was used to measure the chemical absorption rate of diluted nitrogen dioxide into sodium sulfide solution. The absorption rates under various experimental conditions were measured and the effects of experimental conditions on nitrogen dioxide absorption rate were discussed. The results show that, in the range of this study, nitrogen dioxide absorption rate increases with increasing sodium sulfide concentration, nitrogen dioxide inlet concentration, and flue gas flow rate, but decreases with increasing reaction temperature and oxygen content in flue gas. 相似文献
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高温烟气在实际生产活动以及船舶、航天航空等领域均有大量涉及,而如何对其进行冷却是亟待解决的问题.本文以某实际管道内的高温烟气为研究对象,利用Fluent软件数值仿真不同喷射参数条件下管道内烟气的冷却过程,并对所得仿真结果进行对比分析.仿真结果表明:采用圆周上均匀分布8个喷孔,单个喷孔流量为0.05 kg/s时,可满足烟气冷却要求.基于数值仿真结果,设计了适用于该管道结构的冷却装置.本研究结果对管道内高温烟气的冷却处理具有参考意义,所设计的冷却装置具有实际应用价值. 相似文献
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Absorption of NO2 into Na2S solution in a stirred tank reactor 总被引：1，自引：1，他引：0
To understand the absorption mechanism of nitrogen dioxide into a sodium sulfide solution, a stirred tank reactor with a plane gas-liquid interface was used to measure the chemical absorption rate of diluted nitrogen dioxide into sodium sulfide solution. The absorption rates under various experimental conditions were measured and the effects of experimental conditions on nitrogen dioxide absorption rate were discussed. The results show that, in the range of this study, nitrogen dioxide absorption rate increases with increasing sodium sulfide concentration, nitrogen dioxide inlet concentration, and flue gas flow rate, but decreases with increasing reaction temperature and oxygen content in flue gas. 相似文献
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Chang Liu Hong Zhao Wei-ying Yang Kun-zan Qiu Jian-guo Yang Zi-wen Geng Wei-ming Teng Wei-zhong Yuan Xi-jiong Chen 《浙江大学学报(A卷英文版)》2018,19(2):148-157
HCl in coal-fired flue gas has adverse impact on the environment, equipment, and the flue gas desulfurization (FGD) system. The existence of HCl also increases the difficulty of the treatment of desulfurization waste water. Semi-dry dechlorination technology is put forward to attach chlorine to fly ash by spraying in alkaline solution. Simultaneously, desulphurization waste water is used as the solvent of alkali, and this could help realize the target of near-zero emission of desulfurization waste water. CHEMKIN is used to build a chemical kinetics model, which is based on the measured components of flue gas in a coal-fired power plant. NaOH is set as the alkali absorbent in the model. Both the competitive relationship of SO2 and HCl and the effects of different factors on HCl reaction efficiency are analyzed. SO2 with high concentration would compete for more NaOH, but when Na/Cl (ratio in mole) is 1, the reaction efficiency of HCl achieves 22.28%, and it is positively correlated with Na/Cl. When Na/Cl surpasses 5, the reaction efficiency of HCl increases to beyond 70%. As Na/Cl continues to increase, there is a slower growth of HCl reaction efficiency and it finally achieves 100% when Na/Cl reaches 12. With a fixed value of Na/Cl, a change of 1000 mg/m3 in SO2 concentration would change the reaction efficiency of HCl about 13%. The effect of flue temperature on HCl reaction efficiency is not significant. Acid gases in flue gas react with NaOH completely in 0.1 s and come to equilibrium after about 1 s. 相似文献
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湿式烟气脱硫系统中,由于烟气脱硫后含湿量增加,露点温度升高,大量水蒸汽凝结为小水滴吸收烟气中的二氧化硫,产生大量白雾排放到大气中,对烟囱及周围建筑中的钢结构造成腐蚀。可以通过降低吸收塔入口处吸收液的温度,使其脱硫效率增加,同时使含湿量和露点温度降低,从而有效地防治白雾生成和烟囱腐蚀。 相似文献
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针对某脱硫工程的1号机（炉）、2号机（炉）和3号机（炉）设计一套湿法脱硫装置进行100％烟气脱硫,并为4～7号机（炉）脱硫设计预留接口。介绍了FGD脱硫系统工艺和该工程中热控系统的设计过程,重点对脱硫控制系统、测点设置原则、仪表选型及安装等几个方面进行了分析,阐述了石灰石一石膏湿法烟气脱硫技术的热控设计原则和要点。 相似文献
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工业生产废气对大气造成较为严重的污染,其主要是硫化物、氮化物的排放量超标。WK陶瓷催化剂袋式脱硫脱硝、除尘一体化烟气净化技术,是一项具有国际创新的系统集成技术,通过单一的单元控制过程,同步去除烟气中的硫氧化物、氮氧化物、氯、氟和灰尘,高效取代传统三步式组合工艺,具有显著优点,可以很好地解决窑炉烟气排放不达标的问题。 相似文献