Results 1 to 10 of about 1,405 (158)

Enrichment and Separation of Methane Gas by Vacuum Pressure Swing Adsorption [PDF]

Adsorption Science & Technology, 2021
In China, owing to the methane concentration being below 0.75%, the coal ventilation air methane (CVAM) is usually emitted directly into the atmosphere, rather than utilized, which not only causes huge waste of energy but also exerts potential hazards to
Tao Zhu, Ruonan Wang, Xing Zhang, Yiwei Han, Wenjing Bian, Yan Ma, Ming Xue   +6 more
doaj   +2 more sources

Parametric Optimization and Performance Analysis of an Internally Cooled Structured Reactor for CO₂ Direct Air Capture via Temperature–Vacuum Swing Adsorption [PDF]

Molecules
Direct air capture (DAC) based on adsorption is a promising negative-emission technology owing to its operational flexibility, modular deployment potential, and comparatively low regeneration temperature.
Jiale Zheng, Wenqi Fan, Chuanruo Yang, Ming Xue, Zhexuan An, Xinglei Zhao, Xingchun Li, Aiguo Zhou, Liang Huang   +8 more
doaj   +2 more sources

Hydrogen Purification Performance Optimization of Vacuum Pressure Swing Adsorption on Different Activated Carbons

Energies, 2021
Hydrogen purification is an important part of hydrogen energy utilization. This study aimed to perform hydrogen purification of multi-component gas (H2/CO2/CH4/CO/N2 = 0.79/0.17/0.021/0.012/0.007) by one-column vacuum pressure swing adsorption (VPSA) and
Jinsheng Xiao, Ang Mei, Wei Tao, Shuo Ma, Pierre Bénard, Richard Chahine   +5 more
doaj   +3 more sources

Vacuum Exhaust Process in Pilot-Scale Vacuum Pressure Swing Adsorption for Coal Mine Ventilation Air Methane Enrichment

Energies, 2018
Recovery and treatment of methane from coal mine ventilation air methane (VAM) with cost-effective technologies have been an ongoing challenge due to low methane concentrations.
Xiong Yang, Yingshu Liu, Ziyi Li, Chuanzhao Zhang, Yi Xing   +4 more
doaj   +3 more sources

Study on pressurization with raffinate in a rapid vacuum pressure swing adsorption process for producing oxygen

工程科学学报, 2015
The equilibrium adsorption characteristics of nitrogen adsorbents were tested and a suitable nitrogen adsorbent was selected for producing oxygen by rapid vacuum pressure swing adsorption.
ZHU Xian-qiang, LIU Ying-shu, JIAO Lu-lu, YANG Xiong, LIU Wen-hai   +4 more
doaj   +2 more sources

Flexible Metal–Organic Frameworks for Gas Handling Operations of CO2 and Its Isotopes: Mechanisms, Regulation Strategies and Potential Applications [PDF]

Nano-Micro Letters
Highlights An overview of CO2 adsorption mechanisms in flexible metal-organic frameworks (MOFs) is presented from dynamic structure transformation and host-guest interactions.
Na Geng, Ningyu Liu, Sai Chu, Yongjian Huang, Lu Bai, Ming-Shui Yao, Yangyang Guo, Tingyu Zhu   +7 more
doaj   +2 more sources

CO2 capture by vacuum swing adsorption: role of multiple pressure equalization steps [PDF]

Adsorption, 2015
The performance of a 4-bed/16-step vacuum swing adsorption cycle containing three pressure equalization (PE) steps has been analysed in order to understand the role played by the multiple PE steps in the process performance. The cycle was designed for CO2 capture from a feed gas mixture of 15 %CO2/85 %N2, with zeolite ×13 adsorbent from UOP (PSO2HP ...
Yuchun Zhai, Paul Webley, Augustine Ntiamoah   +2 more
exaly   +3 more sources

Interface Controlled Electric Field Swing Adsorption [PDF]

Advanced Science
Influencing the adsorptive processes of gases by external stimuli is an ongoing research task of academic and technological relevance. Technologically external stimuli like pressure, vacuum, temperature, magnetic field, or electrical phenomena are the ...
Silvio Heinschke, Jörg J. Schneider
doaj   +2 more sources

Optimization of hydrogen purification via vacuum pressure swing adsorption

Energy Conversion and Management: X, 2023
Wei-Hsin Chen, Anh Tuan Hoang, Kanit Manatura   +2 more
exaly   +2 more sources

Advancements in adsorption based carbon dioxide capture technologies- A comprehensive review

Heliyon, 2023
The significant increase in energy consumption has facilitated a rapid increase in offensive greenhouse gas (GHG) and CO2 emissions. The consequences of such emissions are one of the most pivotal concerns of environmental scientists.
Arnob Das, Susmita Datta Peu, Md Sanowar Hossain, Md Mahafujul Alam Nahid, Fazlur Rahman Bin Karim, Hribhu Chowdhury, Mahmudul Hasan Porag, Debo Brata Paul Argha, Sabhasachi Saha, Abu Reza Md Towfiqul Islam, Mostafa M. Salah, Ahmed Shaker   +11 more
doaj   +1 more source