| 宽筛分脱油油砂颗粒流化床中固含量轴向分布 |
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| 引用本文： | 唐军,卢春喜,张永民,王祝安.宽筛分脱油油砂颗粒流化床中固含量轴向分布[J].化工学报,2010,61(9):2346-2352. |
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| 作者姓名： | 唐军 卢春喜 张永民 王祝安 |
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| 作者单位： | 中国石油大学（北京）重质油国家重点实验室 |
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| 摘 要： | 引言
随着全球石油资源的日益短缺和石油需求的不断增加,开发非常规石油资源作为石油替代能源已引起广泛关注.油砂是非常规石油资源的主要来源之一,是一种含有沥青或焦油的砂或砂岩,其主要成分为沥青、砂、水、黏土及矿物质1-2].目前,油砂制油工艺主要有热水碱洗3-4]、溶剂萃取5-6]和热解焦化7-9]三种.
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| 关 键 词： | 宽筛分 油砂 流化床 固含量分布 流化质量 |
Axial solid concentration distribution in burned-oil-sand fluidized beds of wide size distribution |
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| TANG Jun,LU Chunxi,ZHANG Yongmin,WANG Zhu'an.Axial solid concentration distribution in burned-oil-sand fluidized beds of wide size distribution[J].Journal of Chemical Industry and Engineering(China),2010,61(9):2346-2352. |
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| Authors: | TANG Jun LU Chunxi ZHANG Yongmin WANG Zhu'an |
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| Abstract: | The axial solid concentration distributions were measured by using pressure inspection instrument in a 286 mm I.D.and 7 m height burned-oil-sand fluidized bed of wide size distribution.The change trend of axial solid concentration distributions were investigated under different superficial gas velocities，particle size and particle density.The results showed that the burned-oil-sand particles had a wide size distribution，and there was difference in densities and particle sizes for burned-oil-sand particles obtained in different regions and buried depth.The axial average solid concentrations were indicated the whole characteristics of dense in bottom and dilute in top，and kept consistent when bed height was above the transport disengaging height（TDH).With increasing superficial gas velocity，the solid concentrations in dense region decreased，but increased in dilute region.The burned-oil-sand particles whose particle size and particle density were smaller had good fluidization quality.According to the analysis of experimental results，a model of index was established in order to associate with experimental data.It was concluded that the empirical formula can reflect well the law of axial particle concentration distributions under different factors. |
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