Cited by 342Zeolite Catalysis and SynthesisMembrane Separation and Gas TransportMetal-Organic Frameworks: Synthesis and Applications

Alternatives to Cryogenic Distillation: Advanced Porous Materials in Adsorptive Light Olefin/Paraffin Separations

Wang, Yuxiang, Peh, Shing Bo, Zhao, Dan·2019·Small

Abstract

As primary feedstocks in the petrochemical industry, light olefins such as ethylene and propylene are mainly obtained from steam cracking of naphtha and short chain alkanes (ethane and propane). Due to their similar physical properties, the separations of olefins and paraffins—pivotal processes to meet the olefin purity requirement of downstream processing—are typically performed by highly energy‐intensive cryogenic distillation at low temperatures and high pressures. To reduce the energy input and save costs, adsorptive olefin/paraffin separations have been proposed as promising techniques to complement or even replace cryogenic distillation, and growing efforts have been devoted to developing advanced adsorbents to fulfill this challenging task. In this Review, a holistic view of olefin/paraffin separations is first provided by summarizing how different processes have been established to leverage the differences between olefins and paraffins for effective separations. Subsequently, recent advances in the development of porous materials for adsorptive olefin/paraffin separations are highlighted with an emphasis on different separation mechanisms. Last, a perspective on possible directions to push the limit of the research in this field is presented.

Integrity signals

Registry

Crossref · 10.1002/smll.201900058

Cites

260 of 260 references verified0 citation errors · 0 not checkable

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  • Zeolites and MOFs are the most promising adsorbents for adsorptive separation of C2-C4 alkenes from alkanes.

    “Studies on the adsorptive separation of C2–C4 alkenes from alkanes have been carried out on different adsorbents, out of which zeolites and MOFs are the most promising.363,624”
  • Membrane-, absorption-, and adsorption-based technologies are promising candidates to replace the distillative separation of olefins from their analogous paraffins.

    “Membrane-, absorption-, and adsorption-based technologies are promising candidates to replace the distillative separation of olefins from their analogous paraffins.624”

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Authors
Wang, Y., Peh, S. B., & Zhao, D.
Affiliations
National University of Singapore (SG)
Corresponding author
Zhao, Dan
Venue
Small
Publisher
Wiley
Published
2019-04-17
Volume
15
Issue
25
Pages
e1900058-e1900058
ISSN
  • 1613-6810 (ISSN-L)
  • 1613-6829
OpenAlex
W2937512451
Cited by
342
References
261
Citations by year
2026: 27 · 2025: 51 · 2024: 60 · 2023: 55 · 2022: 45 · 2021: 60 · 2020: 31 · 2019: 13
FWCI
1.88
Type
journal article
Language
en
Open access
closed
Locations
  • Small (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Research Foundation Singapore (NRF2018‐NRF‐ANR007)
  • Ministry of Education - Singapore (R‐279‐000‐540‐114)
  • Agency for Science, Technology and Research (PSF1521200078, IRGA1783c0015, IAF‐PP A1789a0024)
Topics
  • Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
  • Physical Sciences › Engineering › Mechanical Engineering › Membrane Separation and Gas Transport
  • Physical Sciences › Chemistry › Inorganic Chemistry › Metal-Organic Frameworks: Synthesis and Applications
Keywords
olefin/paraffin separation, adsorption, porous media, cryogenic distillation alternative, ethylene, propylene, steam cracking, separation mechanism, energy-efficient separation, adsorbents

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