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Simultaneous removal of C2H2 and C2H6 for C2H4 purification by robust MOFs featuring a high density of heteroatoms

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/d3ta01598j· OSTI ID:2305727
 [1];  [2];  [3];  [3];  [2];  [4];  [5];  [3];  [6]
  1. Shenzhen Polytechnic, Guangdong (China); Rutgers University, Piscataway, NJ (United States); Rutgers University
  2. Foshan University (China)
  3. Wake Forest University, Winston-Salem, NC (United States)
  4. Shenzhen Polytechnic, Guangdong (China)
  5. University of North Texas, Denton, TX (United States)
  6. Rutgers University, Piscataway, NJ (United States); Shenzhen Polytechnic, Guangdong (China)
Simultaneous removal of C2H6 and C2H2 from C2H4 streams is of great importance in the petrochemical industry but remains a challenging task. To address this challenge, we have selected three isoreticular MOFs with high stability, low cost, and desirable scale-up ability, namely, MOF-303, MIL-160, and CAU-23 and assessed their potential in simultaneous removal of acetylene and ethane for ethylene purification. Each MOF exhibits desirable C2H2 and C2H6 uptake capacity (>5.5 mmol g–1 and >4 mmol g–1, respectively), as well as good C2H2/C2H4 selectivity (>2) and C2H6/C2H4 selectivity (>1.5). Notably, MOF-303 takes up 4.96 mmol g–1 C2H6 at 298 K and 1 bar, the highest value among the three MOFs, with C2H6/C2H4 selectivity in the range of 1.55–2.47. MIL-160 possesses a very high C2H2 uptake (9.1 mmol g–1) and C2H2/C2H4 selectivity, 10.6 (1 : 1, v/v), at 298 K, much higher than those of all other MOFs tested to date for simultaneous removal of C2H6 and C2H2 from C2H4. The results from breakthrough experiments confirm that all three MOFs demonstrate excellent performance for C2H4 purification in a ternary mixture of C2H6/C2H4/C2H2 (1 : 1 : 1, v/v/v). Here, for MOF-303, MIL-160, and CAU-23, polymer-grade C2H4 up to 0.164, 0.21, and 0.181 mmol g–1 can be obtained from the equimolar ternary mixture in a single separation step from the breakthrough experiment. Additionally, DFT calculations have been performed to further investigate the mechanism of adsorption/separation for C2H6, C2H4, and C2H2.
Research Organization:
Wake Forest University, Winston-Salem, NC (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
SC0019902
OSTI ID:
2305727
Alternate ID(s):
OSTI ID: 2006517
Journal Information:
Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A Journal Issue: 39 Vol. 11; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (44)

Metal–Organic Framework Materials for the Separation and Purification of Light Hydrocarbons journal May 2019
Moisture stability of ethane‐selective Ni(II), Fe(III), Zr(IV)‐based metal–organic frameworks journal April 2019
Open Metal Sites within Isostructural Metal-Organic Frameworks for Differential Recognition of Acetylene and Extraordinarily High Acetylene Storage Capacity at Room Temperature journal May 2010
Simultaneous Trapping of C 2 H 2 and C 2 H 6 from a Ternary Mixture of C 2 H 2 /C 2 H 4 /C 2 H 6 in a Robust Metal-Organic Framework for the Purification of C 2 H 4 journal November 2018
Molecular Sieving of C2‐C3 Alkene from Alkyne with Tuned Threshold Pressure in Robust Layered Metal–Organic Frameworks journal May 2020
One‐step Ethylene Purification from an Acetylene/Ethylene/Ethane Ternary Mixture by Cyclopentadiene Cobalt‐Functionalized Metal–Organic Frameworks journal March 2021
The Hydrogenation of Acetylene Catalyzed by Palladium: Hydrogen Pressure Dependence journal January 1999
New Trends in Olefin Production journal April 2017
Novel glucosamine-based carbon adsorbents with high capacity and its enhanced mechanism of preferential adsorption of C2H6 over C2H4 journal February 2019
Microporous metal-organic framework with specific functional sites for efficient removal of ethane from ethane/ethylene mixtures journal May 2020
Robust carbazole-based covalent triazine frameworks with defective ultramicropore structure for efficient ethane-selective ethane-ethylene separation journal January 2022
Ethane selective adsorbent Ni(bdc)(ted)0.5 with high uptake and its significance in adsorption separation of ethane and ethylene journal July 2016
An ethane-trapping MOF PCN-250 for highly selective adsorption of ethane over ethylene journal January 2018
An Overview of Metal–Organic Frameworks for Green Chemical Engineering journal August 2021
Applications of metal–organic frameworks for green energy and environment: New advances in adsorptive gas separation, storage and removal journal July 2018
A combined theoretical and experimental analysis on transient breakthroughs of C2H6/C2H4 in fixed beds packed with ZIF-7 journal May 2015
A Microporous Metal–Organic Framework with Lewis Basic Nitrogen Sites for High C 2 H 2 Storage and Significantly Enhanced C 2 H 2 /CO 2 Separation at Ambient Conditions journal May 2016
Pore-Space Partition and Optimization for Propane-Selective High-Performance Propane/Propylene Separation journal July 2021
Selective Adsorption of Ethane over Ethylene in PCN-245: Impacts of Interpenetrated Adsorbent journal February 2018
Exceptionally High Acetylene Uptake in a Microporous Metal−Organic Framework with Open Metal Sites journal September 2009
Pore Engineering for One-Step Ethylene Purification from a Three-Component Hydrocarbon Mixture journal January 2021
Scalable Room-Temperature Synthesis of Highly Robust Ethane-Selective Metal–Organic Frameworks for Efficient Ethylene Purification journal June 2021
Optimized Separation of Acetylene from Carbon Dioxide and Ethylene in a Microporous Material journal June 2017
Boosting Ethane/Ethylene Separation within Isoreticular Ultramicroporous Metal–Organic Frameworks journal September 2018
A Robust Ethane-Trapping Metal–Organic Framework with a High Capacity for Ethylene Purification journal March 2019
Pore-Space-Partition-Enabled Exceptional Ethane Uptake and Ethane-Selective Ethane–Ethylene Separation journal January 2020
Adsorption on Fe-MOF-74 for C1–C3 Hydrocarbon Separation journal June 2013
Supramolecular binding and separation of hydrocarbons within a functionalized porous metal–organic framework journal December 2014
Porous materials with pre-designed single-molecule traps for CO2 selective adsorption journal February 2013
Microporous metal–organic framework with dual functionalities for highly efficient removal of acetylene from ethylene/acetylene mixtures journal June 2015
A porous metal-organic framework with ultrahigh acetylene uptake capacity under ambient conditions journal June 2015
Efficient purification of ethene by an ethane-trapping metal-organic framework journal October 2015
A robust Th-azole framework for highly efficient purification of C2H4 from a C2H4/C2H2/C2H6 mixture journal June 2020
Molecular sieving of ethylene from ethane using a rigid metal–organic framework journal November 2018
A solid solution approach to 2D coordination polymers for CH4/CO2and CH4/C2H6gas separation: equilibrium and kinetic studies journal January 2012
Metal–organic frameworks with potential for energy-efficient adsorptive separation of light hydrocarbons journal January 2012
Selective adsorption of ethylene over ethane and propylene over propane in the metal–organic frameworks M2(dobdc) (M = Mg, Mn, Fe, Co, Ni, Zn) journal January 2013
van der Waals forces in density functional theory: a review of the vdW-DF method journal May 2015
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Van der Waals density functional: Self-consistent potential and the nature of the van der Waals bond journal September 2007
Spin Signature of Nonlocal Correlation Binding in Metal-Organic Frameworks journal September 2015
Practical water production from desert air journal June 2018
Ethane/ethylene separation in a metal-organic framework with iron-peroxo sites journal October 2018

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