Application of asymmetric structure metal filter on gasoline adsorption desulphurization device
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摘要: 介绍了非对称金属过滤材料的结构特点，分析了国产非对称结构金属滤材在中石化汽油吸附脱硫（S Zorb）装置反应器过滤器中的应用情况。结果表明，与均质金属过滤材料相比，非对称结构金属滤材具有优异的流通特性；在满足过滤精度的前提下，国产非对称结构金属滤材的流通性能更好，压差更低，能够满足汽油吸附脱硫（S Zorb）装置的更长周期运行要求，比传统均质滤材具有更好的适应性和优越性，对增强汽油吸附脱硫（S Zorb）装置运行可靠性起到十分积极的作用。Abstract: The structural characteristics of asymmetric metal filter materials were introduced, and the application of domestic asymmetrical metal filter element in reactor filter of Sinopec gasoline adsorption desulfurization (S Zorb) equipment was analyzed in this paper. The results show that, compared with the homogeneous metal filter materials, the asymmetric metal filter materials present the excellent flow characteristics. On the basis of satisfying the filtration accuracy, the circulation performance of the domestic asymmetric structural metal filter is better and the pressure difference is lower, showing the better adaptability and superiority than the traditional homogeneous filter element, which can meet the longer period operation requirements of S Zorb equipment and play a very positive role in the operation reliability of S Zorb equipment.
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Key words:
- asymmetric /
- metal filter element /
- adsorption desulfurization /
- petroleum refining
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图 1 均质粉末滤材断面微观形貌
Figure 1. Cross-section microstructure of heterogeneous metal powder filter elements
图 2 非对称粉末滤材断面结构示意图
Figure 2. Cross-section schematic diagram of asymmetric metal powder filter elements
图 3 非对称粉末滤材断面微观形貌
Figure 3. Cross-section microstructure of asymmetric metal powder filter elements
图 4 ME101非对称金属粉末滤芯成品
Figure 4. Finished product of ME101 asymmetric metal powder filter element
图 5 ME101均质金属粉末滤芯组件安装
Figure 5. Installation component of ME101 homogeneous isostatic powder filter element
图 6 安装非对称滤芯的ME101气体流量和压差随时间变化曲线
Figure 6. Change curves of flow rate and differential pressure with time in ME101 installed by asymmetric powder filter element
图 7 安装均质等静压滤芯的ME101气体流量和压差随时间变化曲线
Figure 7. Change curves of flow rate and differential pressure with time in ME101 installed by homogeneous isostatic powder filter element
气体 进口压力/ kPa 进口温度/ ℃ 进口密度/ (kg·m-3) 进口流量/ (m3·min-1) 吸附剂含量/ (grain·m-3) 吸附剂密度/ (kg·m-3) 吸附剂粒径范围/ μm 颗粒平均粒径/ μm 烃蒸气 2944 441 38.25 64.09 9887 1906 0~100 25 氢气 2745 371 1.94 19.54 9887 1906 0~100 25 氮气 1310 371 7.33 27.70 9887 1906 0~100 25 
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表 2 非对称滤芯、均质粉轧滤芯及均质等静压滤芯的孔隙特性比较
Table 2. Porosity characteristics of asymmetric powder filter elements, homogeneous powder rolling filter elements, and homogeneous isostatic powder filter elements
样品 孔径/ μm 渗透率/ [L·(cm2·Pa·min)-1] 渗透系数/ m2 压溃强度/ MPa 厚度/ mm 最大 平均 最小 非对称滤芯 9.97 5.84 5.31 2.30 × 10-4 2.74 × 10-12 180 3.3 均质粉轧滤芯 8.32 5.70 4.96 7.98 × 10-5 5.13 × 10-13 135 1.7 均质等静压滤芯 7.66 4.55 4.21 4.44 × 10-5 3.98 × 10-13 176 3.0
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