Efficient One-Step Purification of Methanol-to-Olefin Products Using a Porphyrinyl MOF to Achieve Record C2H4 and C3H6 Productivity DOI
Jianfei Xiao,

Zhenliang Zhu,

Min Zhang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 29, 2025

The separation of methanol-to-olefin (MTO) products to obtain high-purity ethylene (C2H4) and propylene (C3H6) is a challenging yet critical task, as these compounds are essential industrial raw materials for polymer synthesis. However, developing adsorbents with high selectivity productivity C2H4/C3H6 remains significant challenge an urgent necessity. In this study, porphyrinyl metal-organic framework (MOF), Al-TCPP, was developed the simultaneous recovery C3H6 C2H4 through one-step adsorption-desorption process. Benefiting from its well-developed microporous structure abundant N- O-accessible sites, Al-TCPP demonstrated exceptional adsorption capacities ethane (C2H6) over under ambient conditions. (in cm3·g-1) reached 162.4 118.5 C2H6 at 298 K 100 kPa. ideal adsorbed solution theory (IAST) values C3H6/C2H4 C2H6/C2H4 were 10.1 1.8, respectively. Thermodynamic studies theoretical calculations revealed stronger interactions between molecules than C2H4. Systematic breakthrough experiments outstanding performance binary mixtures, well ternary C3H6/C2H6/C2H4 achieving record productivities 150.2 86.5 L·kg-1 polymer-grade (≥99.9%) (≥99.5%), Notably, remained stable variable flow rates, temperatures, humidities, multiple cycles. Overall, study highlighted highly competitive adsorbent addressing challenges in MTO product separation. Moreover, it offered valuable insights into design MOFs heteroatom-rich accessible sites efficient low-carbon hydrocarbons.

Language: Английский

Two isostructural aluminum-based metal − organic frameworks with multiple polar sites for reversible NH3 capture DOI
Yaoqi Huang,

Zhenliang Zhu,

Min Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161602 - 161602

Published: March 1, 2025

Language: Английский

Citations

1
Rigid rhombus Al(bpdc) metal-organic framework for efficient and reversible ammonia adsorption: Synthesis, performance and mechanism DOI
Min Zhang,

Ji-Fei Ma,

Zhenliang Zhu

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131860 - 131860

Published: Jan. 1, 2025

Language: Английский

Citations

0
Efficient One-Step Purification of Methanol-to-Olefin Products Using a Porphyrinyl MOF to Achieve Record C2H4 and C3H6 Productivity DOI
Jianfei Xiao,

Zhenliang Zhu,

Min Zhang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 29, 2025

The separation of methanol-to-olefin (MTO) products to obtain high-purity ethylene (C2H4) and propylene (C3H6) is a challenging yet critical task, as these compounds are essential industrial raw materials for polymer synthesis. However, developing adsorbents with high selectivity productivity C2H4/C3H6 remains significant challenge an urgent necessity. In this study, porphyrinyl metal-organic framework (MOF), Al-TCPP, was developed the simultaneous recovery C3H6 C2H4 through one-step adsorption-desorption process. Benefiting from its well-developed microporous structure abundant N- O-accessible sites, Al-TCPP demonstrated exceptional adsorption capacities ethane (C2H6) over under ambient conditions. (in cm3·g-1) reached 162.4 118.5 C2H6 at 298 K 100 kPa. ideal adsorbed solution theory (IAST) values C3H6/C2H4 C2H6/C2H4 were 10.1 1.8, respectively. Thermodynamic studies theoretical calculations revealed stronger interactions between molecules than C2H4. Systematic breakthrough experiments outstanding performance binary mixtures, well ternary C3H6/C2H6/C2H4 achieving record productivities 150.2 86.5 L·kg-1 polymer-grade (≥99.9%) (≥99.5%), Notably, remained stable variable flow rates, temperatures, humidities, multiple cycles. Overall, study highlighted highly competitive adsorbent addressing challenges in MTO product separation. Moreover, it offered valuable insights into design MOFs heteroatom-rich accessible sites efficient low-carbon hydrocarbons.

Language: Английский

Citations

0