He Gaohong   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Title : Director of R & D Center of Membrane Science and Technology

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Paper Publications

丙烯在X型分子筛上吸附热力学的Monte Carlo模拟

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Indexed by:Journal Article

Date of Publication:2018-01-01

Journal:石油化工

Included Journals:CSCD

Volume:47

Issue:5

Page Number:420-425

ISSN:1000-8144

Key Words:丙烯;X型分子筛;吸附;MonteCarlo模拟

Abstract:基于Materials Studio软件的 Metropolis Monte Carlo方法,运用COMPASSⅡ力场模拟了丙烯在NaX及其金属离子改性分子筛上的吸附,探究了丙烯在X型分子筛上的吸附等温线和吸附热的变化规律.研究结果表明,采用Materials Studio搭建的NaX分子筛构建合理,可用于模拟吸附丙烯分子;丙烯在X型分子筛上的吸附等温线属于Ⅰ类Langmuir型吸附等温线,同一温度下,随压力的增加达到吸附平衡时,丙烯在X型分子筛上的吸附热与吸附量之间呈现良好的正相关性;KX分子筛的平衡吸附量为1.63 mmol/g,吸附热为32.05 kJ/mol,为物理吸附,相比NaX分子筛,平衡吸附量降低了56.18%,吸附热降低了27.86%,更适用于丙烯的净化.

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