用于正丁烯/异丁烯基准分离的理想分子分离器

IF 9.6 1区 化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yu-Peng Jiang, Chenghua Deng, Chen-Xi Liang, Xiaowan Peng, Zeyang Zhang, Li Zhao, Xue-Cui Wu, Jin-Sheng Zou, Yanan Jia, Mei-Jing Cheng, Jia-Han Li, Jie Zhang, Yun-Lei Peng*, Manglai Gao*, Guang-Jin Chen* and Michael J. Zaworotko*, 
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引用次数: 0

摘要

人们一直期待设计一种生态友好型低能耗吸附分离器,用于获取高纯度的正丁烯(n-C4H8)和异丁烯(i-C4H8),但这一目标尚未实现。在此,我们提出了一种具有四通和特定收缩窗口的超级笼型物理吸附剂(CALF-20),用于高效分子筛分 n-C4H8 和 i-C4H8。与其他分子筛材料相比,n-C4H8 的吸附容量创造了新的基准(64.27、54.82 和 0.01 巴)。原位单晶 X 射线衍射(SCXRD)和计算模拟验证了 CALF-20 的窗口特异性收缩和物体适应性对高效分子筛和增强 n-C4H8 结合相互作用的重要作用。在干燥和潮湿环境下进行的突破性实验证明,CALF-20 可以从 n-C4H8/i-C4H8(50/50,v/v)混合物中通过一步吸附实现高效纯化 i-C4H8(≥99.999%),基准生产率为 105 L/kg。CALF-20 卓越的分离性能为工业分离应用提供了一个完美的平台。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Ideal Molecular Splitter with Object Adaptive for Benchmark n-Butylene/iso-Butylene Separation

Ideal Molecular Splitter with Object Adaptive for Benchmark n-Butylene/iso-Butylene Separation

The design of an ecologically friendly and low-energy adsorption separator for acquiring high-purity n-butene (n-C4H8) and iso-butene (i-C4H8) has been anticipated but has not yet materialized. Here, we proposed a physical adsorbent (CALF-20) of a super cage with four-way through and window-specific shrinkage for high-efficiency molecular sieving n-C4H8 and i-C4H8. Compared with other molecular sieving materials, the adsorption capacity of n-C4H8 created a new benchmark (64.27, 54.82, and 0.01 bar). In situ single-crystal X-ray diffraction (SCXRD) and computational simulation validated the vital role of window-specific shrinkage and object adaptation of CALF-20 for high-efficiency molecular sieving and enhancing the n-C4H8 binding interaction. Breakthrough experiments under dry and humid circumstances proved that CALF-20 can achieve efficiently purified i-C4H8 (≥99.999%) with a benchmark productivity of 105 L/kg by one-step adsorption from a n-C4H8/i-C4H8 (50/50, v/v) mixture. The excellent separation performance of CALF-20 provides a perfect platform for industrial separation applications.

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来源期刊
ACS Materials Letters
ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
14.60
自引率
3.50%
发文量
261
期刊介绍: ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
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