| 内循环三相生物流化床反应器的相含率及氧传递特性研究 |
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| 引用本文： | 周平,何嘉汉,钱易.内循环三相生物流化床反应器的相含率及氧传递特性研究[J].环境科学学报,1996,16(2):211-215. |
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| 作者姓名： | 周平 何嘉汉 钱易 |
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| 作者单位： | 清华大学环境工程系 |
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| 摘 要： | 通过内循环三相生物流化床反应器（ＩＴＦＢ）的清水试验，对其相含率及氧的传递特性进行了研究，结果表明，ＩＴＦＢ与传统三相生物流化床相比具有不同的氧传递条件，当供气量较小时，内筒传质烽ＫＬａｌ大于外的传质系数ＫＬａ２，而当供气量较大时，则ＫＬａ２〉ＫＬａ１，在本试验条件下，当载体投加量大于１．６ｋｇ时，ＫＬａ随Ｃｓ的增加而增加。
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| 关 键 词： | 相含率 氧传质系数 流化床反应器 |
| 收稿时间： | 1994/11/23 0:00:00 |
PHASE HOLDUP AND OXYGEN TRANSFER IN AN INTERNAL-CIRCULATION THREE-PHASE BIO-FLUIDISED BED |
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| Zhou Ping,He Jiahan and Qian Yi.PHASE HOLDUP AND OXYGEN TRANSFER IN AN INTERNAL-CIRCULATION THREE-PHASE BIO-FLUIDISED BED[J].Acta Scientiae Circumstantiae,1996,16(2):211-215. |
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| Authors: | Zhou Ping He Jiahan and Qian Yi |
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| Institution: | Department of Environmental Engineering, Tsinghua University, Beijing 100084,Department of Environmental Engineering, Tsinghua University, Beijing 100084 and Department of Environmental Engineering, Tsinghua University, Beijing 100084 |
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| Abstract: | Study on the gas holdup and oxygen transfer in a internal-circulation three-phase biofluidised bed (ITFB) with tap water was conducted. The results showed that oxygen transfer condition in a ITFB was better than that in a conventional three-phase biofluidised bed.When gas flux was low, the riser oxygen transfer coefficient K_(Lal) was greater than K_(la2) in downcomer, while, K_(La2) was greater than K_(La2) when gas flux was high. K_(La) increase with the increase of carrier concentration when the total amount of carrier was above 1. 6 kg. |
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| Keywords: | internal-circulation three-phase bio-fluidised bed phase holdup oxygen transfer coefficient |
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