Abstract
Adsorptive separation of olefin/paraffin mixtures by porous solids can greatly reduce the energy consumption associated with the currently employed cryogenic distillation technique. Here, the complete separation of propane and propylene by a designer microporous metal–organic framework material is reported. The compound, Y6(OH)8(abtc)3(H2O)6(DMA)2 (Y-abtc, abtc = 3,3′,5,5′-azobenzene-tetracarboxylates; DMA = dimethylammonium), is rationally designed through topology-guided replacement of inorganic building units. Y-abtc is both thermally and hydrothermally robust, and possesses optimal pore window size for propane/propylene separation. It adsorbs propylene with fast kinetics under ambient temperature and pressure, but fully excludes propane, as a result of selective size exclusion. Multicomponent column breakthrough experiments confirm that polymer-grade propylene (99.5%) can be obtained by this process, demonstrating its true potential as an alternative sorbent for efficient separation of propane/propylene mixtures.
| Original language | English |
|---|---|
| Article number | 1805088 |
| Journal | Advanced Materials |
| Volume | 30 |
| Issue number | 49 |
| DOIs | |
| Publication status | Published - Dec 6 2018 |
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Keywords
- adsorbents
- adsorptive separation
- metal–organic frameworks
- molecular sieving
- olefin/paraffin separation
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Tailor-Made Microporous Metal–Organic Frameworks for the Full Separation of Propane from Propylene Through Selective Size Exclusion. / Wang, Hao; Dong, Xinglong; Colombo, Valentina; Wang, Qining; Liu, Yanyao; Liu, Wei; Wang, Xin Long; Huang, Xiao Ying; Proserpio, Davide M.; Sironi, Angelo; Han, Yu; Li, Jing.
In: Advanced Materials, Vol. 30, No. 49, 1805088, 06.12.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Tailor-Made Microporous Metal–Organic Frameworks for the Full Separation of Propane from Propylene Through Selective Size Exclusion
AU - Wang, Hao
AU - Dong, Xinglong
AU - Colombo, Valentina
AU - Wang, Qining
AU - Liu, Yanyao
AU - Liu, Wei
AU - Wang, Xin Long
AU - Huang, Xiao Ying
AU - Proserpio, Davide M.
AU - Sironi, Angelo
AU - Han, Yu
AU - Li, Jing
PY - 2018/12/6
Y1 - 2018/12/6
N2 - Adsorptive separation of olefin/paraffin mixtures by porous solids can greatly reduce the energy consumption associated with the currently employed cryogenic distillation technique. Here, the complete separation of propane and propylene by a designer microporous metal–organic framework material is reported. The compound, Y6(OH)8(abtc)3(H2O)6(DMA)2 (Y-abtc, abtc = 3,3′,5,5′-azobenzene-tetracarboxylates; DMA = dimethylammonium), is rationally designed through topology-guided replacement of inorganic building units. Y-abtc is both thermally and hydrothermally robust, and possesses optimal pore window size for propane/propylene separation. It adsorbs propylene with fast kinetics under ambient temperature and pressure, but fully excludes propane, as a result of selective size exclusion. Multicomponent column breakthrough experiments confirm that polymer-grade propylene (99.5%) can be obtained by this process, demonstrating its true potential as an alternative sorbent for efficient separation of propane/propylene mixtures.
AB - Adsorptive separation of olefin/paraffin mixtures by porous solids can greatly reduce the energy consumption associated with the currently employed cryogenic distillation technique. Here, the complete separation of propane and propylene by a designer microporous metal–organic framework material is reported. The compound, Y6(OH)8(abtc)3(H2O)6(DMA)2 (Y-abtc, abtc = 3,3′,5,5′-azobenzene-tetracarboxylates; DMA = dimethylammonium), is rationally designed through topology-guided replacement of inorganic building units. Y-abtc is both thermally and hydrothermally robust, and possesses optimal pore window size for propane/propylene separation. It adsorbs propylene with fast kinetics under ambient temperature and pressure, but fully excludes propane, as a result of selective size exclusion. Multicomponent column breakthrough experiments confirm that polymer-grade propylene (99.5%) can be obtained by this process, demonstrating its true potential as an alternative sorbent for efficient separation of propane/propylene mixtures.
KW - adsorbents
KW - adsorptive separation
KW - metal–organic frameworks
KW - molecular sieving
KW - olefin/paraffin separation
UR - http://www.scopus.com/inward/record.url?scp=85055723798&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85055723798&partnerID=8YFLogxK
U2 - 10.1002/adma.201805088
DO - 10.1002/adma.201805088
M3 - Article
VL - 30
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 49
M1 - 1805088
ER -