Amine-containing adsorbents have been extensively investigated for post-combustion carbon dioxide capture due to their ability to chemisorb low-concentration carbon dioxide from a wet flue gas. However, earlier studies have focused primarily on the carbon dioxide uptake of adsorbents, and have not demonstrated effective adsorbent regeneration and long-term stability under such conditions. Here,...

Abstract With increasing nitrogen purity, PSA plants require an over-proportional air demand with the consequence that high-purity systems engender a distinct interest in energy-saving measures. This paper presents process intensification strategies focus on reduced energy consumption. Therefore, influence of configuration and cycle organisation performance was investigated. Results are present...

Dual-reflux pressure swing adsorption (DR-PSA) is a state-of-art technology claiming to achieve both high product purity and recovery. However, its performance inevitably limited by the gas mixing problem at feed inlet position in columns, where discontinuity columns' axial concentration profiles disturbs separation. Here, we developed dynamic-feed DR-PSA (DF-DR-PSA) process solve obtain better...

The separations of alcohols with hydrophilic and hydrophobic parts, and the separation of aromatic mixtures, are extremely important processes in gas and petroleum industries. Choosing an adsorbent for performing this separation is the most important part of the process. Silica gel is used as an adsorbent is various techniques such as pressure swing adsorption (PSA) and gas and liquid chromatog...

Pressure swing adsorption (PSA) technology is used in medical oxygen concentrators for selective of nitrogen under pressure from air to produce oxygen-enriched breathing. The functional material aluminosilicate zeolite like Li-13X, 5A (LTA) with a relatively high Al-content. It selectively adsorbs the into their molecular sieves due strong quadrupolar interaction between adsorbed and electrical...

This paper introduces a new approach to controlling Pressure Swing Adsorption (PSA) using neural network controller based on Model Predictive Control (MPC) process. We use Hammerstein–Wiener (HW) model representing the real PSA process data. Then, we design an MPC-controlled HW maintain bioethanol purity near 99% molar fraction. work proposes Artificial Neural Network (ANN) that captures dynami...