Polymer-grade ethylene production via VPSA simulation with a scalable and shaped ultra-microporous adsorbent

IF 4 3区工程技术 Q2 ENGINEERING, CHEMICAL AIChE Journal Pub Date : 2025-02-20 DOI:10.1002/aic.18759

Yechen Liu, Cong Yu, Kun Lu, Tangyin Wu, Rimin You, Xian Suo, Lifeng Yang, Xili Cui, Huabin Xing

{"title":"Polymer-grade ethylene production via VPSA simulation with a scalable and shaped ultra-microporous adsorbent","authors":"Yechen Liu, Cong Yu, Kun Lu, Tangyin Wu, Rimin You, Xian Suo, Lifeng Yang, Xili Cui, Huabin Xing","doi":"10.1002/aic.18759","DOIUrl":null,"url":null,"abstract":"Energy-efficient pressure swing adsorption (PSA), a technology boosted by extensive research on emerging adsorbents, is a potential alternative to ethylene purification. We investigated, for the first time, the scale-up synthesis, shaping, and high-pressure ethylene-adsorption performance of an ultra-microporous adsorbent, CPL-1-NH2, with an S-type isotherm for ethylene. Based on the static adsorption data and kilogram-scale breakthrough experiments on the shaped CPL-1-NH2, vacuum PSA (VPSA) simulation processes were designed to purify ethylene from a C2H4/C2H6 mixture. Critical variables were investigated and analyzed systematically to increase the purity and recovery of the ethylene product. After parameter optimization, high ethylene purity (99.91%), excellent ethylene recovery (74%), and productivity (1.8 mol kg−1 h−1) were achieved in the 80/20 (C2H4/C2H6, v/v) VPSA simulation. This study reveals that porous materials with flexible isotherms and rapid regeneration ability are desirable for PSA from an engineering perspective.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"71 6","pages":""},"PeriodicalIF":4.0000,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"AIChE Journal","FirstCategoryId":"5","ListUrlMain":"https://aiche.onlinelibrary.wiley.com/doi/10.1002/aic.18759","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Energy-efficient pressure swing adsorption (PSA), a technology boosted by extensive research on emerging adsorbents, is a potential alternative to ethylene purification. We investigated, for the first time, the scale-up synthesis, shaping, and high-pressure ethylene-adsorption performance of an ultra-microporous adsorbent, CPL-1-NH₂, with an S-type isotherm for ethylene. Based on the static adsorption data and kilogram-scale breakthrough experiments on the shaped CPL-1-NH₂, vacuum PSA (VPSA) simulation processes were designed to purify ethylene from a C₂H₄/C₂H₆ mixture. Critical variables were investigated and analyzed systematically to increase the purity and recovery of the ethylene product. After parameter optimization, high ethylene purity (99.91%), excellent ethylene recovery (74%), and productivity (1.8 mol kg⁻¹ h⁻¹) were achieved in the 80/20 (C₂H₄/C₂H₆, v/v) VPSA simulation. This study reveals that porous materials with flexible isotherms and rapid regeneration ability are desirable for PSA from an engineering perspective.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

利用可扩展和成型的超微孔吸附剂通过VPSA模拟聚合物级乙烯生产

节能型变压吸附（PSA）技术是一项新兴吸附剂广泛研究推动的技术，是乙烯净化的潜在替代品。本文首次研究了一种具有s型等温线的超微孔吸附剂ccl -1- nh2的放大合成、成型和高压乙烯吸附性能。基于定形cl -1- nh2的静态吸附数据和公斤级突破实验，设计了真空PSA （VPSA）模拟工艺，用于提纯C2H4/C2H6混合物中的乙烯。为了提高乙烯产品的纯度和回收率，对关键变量进行了系统的研究和分析。参数优化后，在80/20 （C2H4/C2H6, v/v）的VPSA模拟下，乙烯纯度达到99.91%，乙烯回收率达到74%，产率达到1.8 mol kg−1 h−1。该研究表明，从工程角度来看，具有柔性等温线和快速再生能力的多孔材料是PSA所需的材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.