Enrichment and Separation of Methane Gas by Vacuum Pressure Swing Adsorption

Modelling Cryogenic Pressure Swing Adsorption for Methane and N2 Separation for Natural Gas Purification

Natural gas is processed to control purity and bring it to sales standard. A part of this processing involves the removal of N2 and CO2 which may exist in large quantities in the gas. These impurities are often removed using Cryogenic Pressure Swing Adsorption (CPSA). PSA uses pressure changes to maximise the efficiency of adsorption and desorption. A fundamental mathematical model was develope...

Biogas Upgrading by Pressure Swing Adsorption

Carbon Dioxide Capture and Hydrogen Purification from Synthesis Gas by Pressure Swing Adsorption

Global warming has become more and more serious, which is caused by greenhouse gases. Cutting down the emission of CO2 has already become one of the major research target in the world. This study utilized a pressure swing adsorption (PSA) process to separate high-purity hydrogen and to capture CO2 from synthesis gas, which is the effluent stream of water-gas-shift reactor. The purified H2 can b...

Hazardous dichloromethane recovery in combined temperature and vacuum pressure swing adsorption process.

Organic vapors emitted from solvents used in chemical and pharmaceutical processes, or from hydrocarbon fuel storage stations at oil terminals, can be efficiently captured by adsorption onto activated carbon beds. To recover vapors after the adsorption step, two modes of regeneration were selected and could be possibly combined: thermal desorption by hot nitrogen flow and vacuum depressurizatio...

Producing Nitrogen via Pressure Swing Adsorption

Nitrogen gas is a staple of the chemical industry. Because it is an inert gas, nitrogen is suitable for a wide range of applications covering various aspects of chemical manufacturing, processing, handling, and shipping. Due to its low reactivity, nitrogen is an excellent blanketing and purging gas that can be used to protect valuable products from harmful contaminants. It also enables the safe...