Research on the Adsorption Performance of Zeolites for Dimethyl Ether DOI Open Access

Xiaoqing Nie,

Zhaoteng Xue,

Wenqian Jiao

et al.

Minerals, Journal Year: 2024, Volume and Issue: 14(11), P. 1141 - 1141

Published: Nov. 11, 2024

The purification and removal of polar impurities in olefin feedstocks is crucial for downstream deep processing, adsorption the main method such impurities. This article takes dimethyl ether, a typical oxygen-containing compound impurity MTOs, as molecule, LTA FAU topological zeolites research objects. influence zeolite topology, morphology, skeleton silicon–aluminum (Si/Al) ratio, ion type on trace ether was investigated by XRD, SEM, XRF, nitrogen adsorption–desorption methods. show better performance owing to their larger specific surface area unobstructed pores compared with zeolites. Among zeolites, NaX lower framework silica–alumina ratio has highest capacity ether. Magnesium exchange (MgNaX) reduce zeolite. However, after forming alumina binder, MgNaX–Al2O3 adsorbent about 13% higher than that NaX–Al2O3 without Mg exchange. may be due decomposition residual organic salts samples during high-temperature calcination, resulting formed adsorbent. Further characterization NH3–TPD CO2–TPD shows weakens acid–base active sites surface. reduction reduces occurrence side reactions polymerization isomerization caused exothermic olefins adsorbents. Repeated data excellent regeneration–adsorption performance.

Language: Английский

Advancements in the Application of CO2 Capture and Utilization Technologies—A Comprehensive Review DOI Creative Commons
Queendarlyn Adaobi Nwabueze,

Smith Leggett

Fuels, Journal Year: 2024, Volume and Issue: 5(3), P. 508 - 532

Published: Sept. 11, 2024

Addressing escalating energy demands and greenhouse gas emissions in the oil industry has driven extensive efforts carbon capture utilization (CCU), focusing on power plants industrial facilities. However, utilizing CO2 as a raw material to produce valuable chemicals, materials, fuels for transportation may offer more sustainable long-term solution than sequestration alone. This approach also presents promising alternatives traditional chemical feedstock industries such fine pharmaceuticals, polymers. review comprehensively outlines current state of technologies, exploring associated challenges opportunities regarding their efficiency economic feasibility. Specifically, it examines potential technologies looping, membrane separation, adsorption processes, which are advancing frontiers by enhancing reducing costs. Additionally, explores various methods utilization, highlighting benefits applications. These hold producing high-value chemicals offering new pathways reduce footprint. The integration is examined, emphasizing its cost-effective efficient that mitigates climate change while converting into resource. Finally, designing, developing, scaling up providing comprehensive perspective technical need be addressed. It provides roadmap suggesting successful deployment could result significant environmental encourage innovation practices within sectors.

Language: Английский

Citations

7
New Insights into the Fluorine-alkali Treatment and its Application to ZSM-11 as a Superior Catalyst for Chloromethane to Propylene DOI
Ting Xu,

Shiyu Cen,

Qinghu Tang

et al.

Microporous and Mesoporous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 113547 - 113547

Published: Feb. 1, 2025

Language: Английский

Citations

0
Investigation on deactivation periods of ZSM-5/SAPO-34 catalyst in MTA reaction: Carbon deposition behavior DOI
Jingbo Li,

Bangming Yang,

Ning Li

et al.

Fuel, Journal Year: 2025, Volume and Issue: 395, P. 135207 - 135207

Published: March 31, 2025

Language: Английский

Citations

0
Methanol to Olefins (MTO): Catalysts, Kinetics, Mechanisms, and Reaction Paths DOI
Anahita Mortazavi‐Manesh

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Citations

0
Research on the Adsorption Performance of Zeolites for Dimethyl Ether DOI Open Access

Xiaoqing Nie,

Zhaoteng Xue,

Wenqian Jiao

et al.

Minerals, Journal Year: 2024, Volume and Issue: 14(11), P. 1141 - 1141

Published: Nov. 11, 2024

The purification and removal of polar impurities in olefin feedstocks is crucial for downstream deep processing, adsorption the main method such impurities. This article takes dimethyl ether, a typical oxygen-containing compound impurity MTOs, as molecule, LTA FAU topological zeolites research objects. influence zeolite topology, morphology, skeleton silicon–aluminum (Si/Al) ratio, ion type on trace ether was investigated by XRD, SEM, XRF, nitrogen adsorption–desorption methods. show better performance owing to their larger specific surface area unobstructed pores compared with zeolites. Among zeolites, NaX lower framework silica–alumina ratio has highest capacity ether. Magnesium exchange (MgNaX) reduce zeolite. However, after forming alumina binder, MgNaX–Al2O3 adsorbent about 13% higher than that NaX–Al2O3 without Mg exchange. may be due decomposition residual organic salts samples during high-temperature calcination, resulting formed adsorbent. Further characterization NH3–TPD CO2–TPD shows weakens acid–base active sites surface. reduction reduces occurrence side reactions polymerization isomerization caused exothermic olefins adsorbents. Repeated data excellent regeneration–adsorption performance.

Language: Английский

Citations

0