共查询到17条相似文献,搜索用时 62 毫秒
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羰基合成工业中使用的分离提纯CO方法主要有Cosorb法、膜分离法、深冷法和变压吸附法。分析了几种分离方法的特点,重点介绍变压吸附法在我公司的应用。 相似文献
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羰基合成工业中分离提纯CO的方法 总被引:1,自引:0,他引:1
羰基合成工业中使用的分离提纯CO的方法主要有:Cosorb法情况、膜分离法、深冷法和变压吸附法。本文分析了几种分离方法的特点,重点介绍变压吸附法在充矿国泰人工有限公司的应用情况。 相似文献
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变压吸附分离技术的研究进展 总被引:7,自引:0,他引:7
简述了变压吸附技术在分离净化方面的应用,及其在分离提纯高沸组分中的研究进展,寻求进一步拓展变压吸附技术的应用领域,开发新型工业装置的途径。 相似文献
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边守军 《化学推进剂与高分子材料》1993,(2)
综述了近年来用于空气分离的沸石分子筛和碳分子筛等吸附剂的改进.认为改进吸附剂的吸附性能和开发新型高效吸附剂是提高变压吸附法空气分离效率最有潜力的途径. 相似文献
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边守军 《化学推进剂与高分子材料》1999,(1):9-12
近年来出现的变压吸附回收和提纯一氧化碳的各种工艺及一氧化碳专用吸附剂的研究进展,对变压口服会工艺和COSORB法进行了简单的比较,并初步讨论了一段法工艺的适用范围。 相似文献
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介绍了采用新型吸附剂及变温变压吸附技术脱除氯乙烯单体中水分的原理及工艺流程。该技术用于20万t/a氯乙烯单体装置的深度脱水处理后,氯乙烯单体的含水质量分数由700μg/g下降到20~50μg/g。该技术脱水能力强、效率高,生产过程中无"三废"排放。 相似文献
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针对气相法聚乙烯装置排放气回收系统中排火炬气含有大量有机组分的现状,通过使用无动力深冷分离回收工艺提高排放气中的乙烯、共聚单体(丁烯-1或己烯-1)和异戊烷等组分的回收率,减少排放气的火炬排放,从而降低装置能耗。直接返回聚乙烯装置反应单元的液体产品乙烯达到12.9 kg/h,丁烯-1达到53.19 kg/h,异戊烷达到26.49 kg/h,每年合计回收凝液总量达到740 t以上,总价值481万元。 相似文献
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变压吸附空分制氧的技术进展 总被引:8,自引:1,他引:8
介绍了近年来变压吸附空分制氧的技术进展情况,分别从空分制氧的工艺和吸附剂的改进状况进行了详细论述,并简单的描述了空分制氧的发展前景。 相似文献
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Separation of methane and nitrogen using ionic liquidic zeolites by pressure vacuum swing adsorption
Guoping Hu Gongkui Xiao Yalou Guo Mitch Manning Li Chen Lanjin Yu Kevin Gang Li Eric F. May 《American Institute of Chemical Engineers》2022,68(7):e17668
The separation of methane (CH4) and nitrogen (N2) is a significant challenge to the enrichment and utilization of low concentration CH4 due to the similarity in the physical and chemical properties of the two molecules. In this work, we investigated the separation of CH4 from N2 using 100 kg of a new ionic liquidic zeolite (ILZ) material in a 6-bed pilot-scale pressure swing adsorption process. Feed gases with CH4 concentrations of 5.0% and 16.1% were upgraded to 11.5% and 34.6%, respectively, with CH4 recoveries higher than 80%. The pilot test results were used to anchor a numerical model that then allowed the efficient investigation of multiple operational parameters including desorption pressure and feed gas flow rates. The numerical model produced CH4 concentrations for both product streams consistent with those measured in the pilot experiments, with root mean square deviations below 2%. The modeling results revealed that sufficiently low desorption pressures can unexpectedly lead to lower heavy product purities under limited feed gas flow conditions. Furthermore, the optimum feed gas flow rate under which maximum heavy product purity is achieved increases with lower desorption pressure. The maximum CH4 concentrations increased from 31.8% to 41.5%, as desorption pressures decreased from 22.8 to 12.2 kPa for optimum feed flow rates between 78.2 and 105.5 mol/h. We also demonstrate a method of process optimization based on the bed capacity ratio, ℂ, which provides a scale-independent measure of the degree to which the column is being used effectively. By varying feed flow rate and/or desorption pressure, ℂ values between 0.2 and 0.8 were explored, with maxima in the combined separation performance metric (methane recovery) × (methane purity) occurring for values of ℂ in the range 0.29–0.36. This separation performance optimization by adjusting ℂ provides an effective strategy for integrating and understanding the impact of multiple operating parameters. 相似文献