| 合成气制二甲醚三相淤浆床反应器气含率 |
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| 引用本文： | 张海涛,侯秋实,丁百全,房鼎业. 合成气制二甲醚三相淤浆床反应器气含率[J]. 化工学报, 2002, 53(6): 651-654 |
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| 作者姓名： | 张海涛 侯秋实 丁百全 房鼎业 |
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| 作者单位： | 华东理工大学化工学院 |
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| 摘 要： | 引 言二甲醚是近年来国内外竞相开发、性能优越的碳一化工产品 .二甲醚不仅是从合成气制汽油、低碳烯烃的重要中间体 ,而且也是多种化工产品的重要原料 .同时由于二甲醚具有优良的燃烧性能和高的辛烷值 ,作为柴油的替代品日益引起人们的普遍关注 .随着对环境和生态平衡保护力度的加大 ,二甲醚的作用和地位将越来越重要 .与传统的采用固定床反应器以甲醇为原料脱水生成二甲醚的生产工艺相比 ,以煤或天然气为原料 ,通过合成气在三相淤浆床反应器中一步法合成二甲醚新工艺具有巨大的优越性 .三相淤浆床反应器流体力学性质十分复杂 ,目前还不能…
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| 关 键 词： | 合成气 三相淤浆床反应器 二甲醚 冷模 气含率 流体力学 设计 |
| 文章编号： | 0438-1157(2002)06-0651-04 |
| 修稿时间： | 2001-05-15 |
GAS HOLD- UP FOR SYNTHESIS OF DIMETHYL ETHER FROM SYNTHESIS GAS IN LARGE SCALE THREE- PHASE SLURRY REACTOR |
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| ZHANG Haitao,HOU Qiushi,DING Baiquan,FANG Dingye. GAS HOLD- UP FOR SYNTHESIS OF DIMETHYL ETHER FROM SYNTHESIS GAS IN LARGE SCALE THREE- PHASE SLURRY REACTOR[J]. Journal of Chemical Industry and Engineering(China), 2002, 53(6): 651-654 |
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| Authors: | ZHANG Haitao HOU Qiushi DING Baiquan FANG Dingye |
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| Abstract: | The effects of superficial gas velocity, catalyst loading, liquid properties and internal fitting on gas holdup of air/water, air/paraffin oil and air/catalyst/paraffin oil were investigated in a 0 2 m diameter, 4 2 m height slurry bubble column reactor operating with methanol synthesis copper-based catalyst and methanol dehydration catalyst. The experimental data showed that gas holdup increased with superficial gas velocity no matter whether there was a heat exchanger. However, no matter whether there was a heat exchanger, gas holdup decreased with the increase of catalyst loading. The existence of heat exchanger favored the increase of gas holdup. The gas holdup in the air-water system was slightly higher than in the air-paraffin system. Empirical correlations for gas holdup data were proposed. |
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| Keywords: | dimethyl ether cold model gas hold|up hydrodynamics |
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