G. Carvalho, Bruno Cappellari, Rubi Böhmer Júnior, L. F. Trierweiler, J. O. Trierweiler, M. Farenzena
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引用次数: 1
Abstract
The experimentally investigation for dehydration of gas streams in a fixed-bed adsorption column using a 4A molecular sieve was reported for the first time. Different operating conditions of the adsorption system were performed, such as flow rate (2.0, 5.0 and 8.0 L min.-1) and bed depths (10, 20 and 30 cm). A significantly decreased (p ≤ 0.05) in exhaustion time of the adsorption column was verified as a result of the increase in the flow rate. On the other hand, a significantly increase (p ≤ 0.05) in the rupture time and the mass transfer zone (MTZ) were observed when the bed depths rise. Furthermore, the experimental data were satisfactory described by the Yoon-Nelson model due to high values of correlation coefficient (R2). These results suggested the suitability of 4A zeolite molecular sieve for the dehydration of gas streams in continuous operating mode. Moreover, it could be interesting for the scientific communities and industry.
本文首次报道了用4A分子筛对固定床吸附塔中气流进行脱水的实验研究。研究了不同的吸附系统操作条件，如流速(2.0、5.0和8.0 L min.-1)和床层深度(10、20和30 cm)。随着流速的增加，吸附柱的耗尽时间显著减少(p≤0.05)。另一方面，随着床层深度的增加，破裂时间和传质带(MTZ)显著增加(p≤0.05)。此外，由于相关系数(R2)的高值，实验数据满意地描述了Yoon-Nelson模型。上述结果表明，4A沸石分子筛适合于连续运行模式下的气流脱水。此外，这对科学界和工业界来说可能很有趣。
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