Results 51 to 60 of about 418 (138)

Modified Dual-Site Langmuir Adsorption Equilibrium Models from A GCMC Molecular Simulation

Applied Sciences, 2020
In the modern industrial separation process, the pressure swing adsorption technology is widely used to separate and purify gases due to its low energy consumption, low cost, convenience, reliability, and environmental benignity.
Junchao Wang, Yongjie Wei, Zhengfei Ma
doaj   +1 more source

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee, Ashish Kumar, Mayurkumar P. Patil, Rohit B. Meshram   +3 more
wiley   +1 more source

Biomass‐Coupled HER System: A Strategy for Sustainable and Low‐Cost Hydrogen Production

Carbon Energy, EarlyView.
Pine wood is carbonized into a hierarchically porous biochar anode that undergoes carbon oxidation reaction, replacing the oxygen evolution reaction in alkaline water electrolysis. The resulting biomass‐coupled HER system converts water into hydrogen at low cell voltages, enabling low‐cost H2 production from renewable carbon resources. ABSTRACT Biomass‐
Yuming Huang, Wei Zhou, Liang Xie, Miaoting Sun, Junfeng Li, Xuewei Zhang, Jiaxiang Chen, Xiaoxiao Meng, Jihui Gao, Guangbo Zhao, Bo Song   +10 more
wiley   +1 more source

Removing CO₂ from Biogas – the Optimisation of a Pressure Swing Adsorption (PSA) Unit Using Breakthrough Curves

Chemical Engineering Transactions, 2014
Currently when fossil fuel resources are decreasing and environmental protection is increasing, renewable energy sources are exploited more. Biogas (typically a raw mixture composed of methane, carbon dioxide and other minor components) can be one of the
P. Lestinsky, M. Vecer, P. Navrátil, P. Stehlík   +3 more
doaj   +1 more source

Porous Carbon Materials for Carbon Dioxide Capture

Carbon Energy, EarlyView.
This work aims to address the current status and challenges associated with the regulation of pore structures, as well as the influence of pore structures on CO2 capture. Systematic quantitative analysis of structure–property relationships, combined with machine learning approaches, can effectively evaluate the contributions of structural ...
Zhifu Liu, Chuhan Fu, Tao Qi, Hui Zhou, Guangping Hao, Yalou Guo, Guoping Hu   +6 more
wiley   +1 more source

Low‐Temperature Initiation Enhances HCN and NH3 Formation From Methane and NO Over Pt/Al2O3

Chemistry – A European Journal, EarlyView.
Hydrogen cyanide (HCN) was formed from CH4 and NO over Pt/Al2O3 at low temperatures. Increasing NO concentration and optimizing reaction‐start conditions significantly enhanced HCN yield. In situ FTIR and DXAFS measurements revealed that dynamically balancing Pt‑CO and Pt‑CN surface species, particularly their desorption under temperature‑swing ...
Emika Yamashita, Kyoko K. Bando, Toshitaka Kubo, Atsushi Takagaki   +3 more
wiley   +1 more source

Agricultural byproducts-based biosorbents for purification of bioalcohols: a review

Bioresources and Bioprocessing, 2018
For the purification of alcohols derived from microbial fermentations, extensive processing is required. Adsorption is described as one of the most cost-effective and efficient techniques for the separation of water and purification of alcohols. Biobased
Ravi Dhabhai, Catherine H. Niu, Ajay K. Dalai   +2 more
doaj   +1 more source

High-throughput gas separation by flexible metal–organic frameworks with fast gating and thermal management capabilities

Nature Communications, 2020
Separation processes in industry use substantial energy and energy-efficient purification systems should be developed for sustainability. Here the authors report a flexible metal–organic framework for high-throughput separation of CO2 from a CO2/CH4 gas ...
Shotaro Hiraide, Yuta Sakanaka, Hiroshi Kajiro, Shogo Kawaguchi, Minoru T. Miyahara, Hideki Tanaka   +5 more
doaj   +1 more source

Potential Analysis of On‐Site Oxygen and Ozone Production for Wastewater Treatment Plants

Chemie Ingenieur Technik, EarlyView.
The potential of a power‐to‐gas process focusing on the oxygen stream to cover an upcoming demand of ozone at German wastewater treatment plants is analyzed. Economic and ecological parameters are compared to the conventional production of hydrogen and oxygen. Powered by on‐site produced wind energy, the process is deemed beneficial.
Vincenta Franßen, Paul Goerdten, Christian Hoffmann, Jens‐Uwe Repke   +3 more
wiley   +1 more source

An Analytical Design Model of a Vacuum Pressure Swing Adsorption Process for Biogas Upgrading

Chemie Ingenieur Technik, EarlyView.
A steady‐state model was developed for a vacuum pressure swing adsorption (VPSA) process comprising adsorption, depressurization, and evacuation steps. The resulting analytical plant design model provides the optimal adsorber height required to achieve a target product purity with maximum bed utilization.
Thomas Welter, Jan Mackel, Niklas Döring, Hilario Vidal   +3 more
wiley   +1 more source