Combination of ionic liquids with membrane technology: a new approach for CO2 separation

Recent developments in membrane-based technologies for co2 capture

With the growing concern about global warming placing greater demands on improving energy efficiency and reducing CO2 emissions, the need for improving the energy intensive, separation processes involving CO2 is well recognized. The US Department of Energy estimates that the separation of CO2 represents 75% of the cost associated with its separation, storage, transport, and sequestration operations. Hence, energy efficient, CO2 separation technologies with improved economics are needed for industrial processing and for future options to capture and concentrate CO2 for reuse or sequestration. The overall goal of this review is to foster the development of new adsorption and membrane technologies to improve manufacturing efficiency and reduce CO2 emissions. This study focuses on the power, petrochemical, and other CO2 emitting industries, and provides a detailed review of the current commercial CO2 separation technologies, i.e., absorption, adsorption, membrane, and cryogenic, an overview of the em...

State-of-the-art Adsorption and Membrane Separation Processes for Carbon Dioxide Production from Carbon Dioxide Emitting Industries

Status and progress of membrane contactors in post-combustion carbon capture: A state-of-the-art review of new developments

Wetting mechanism in mass transfer process of hydrophobic membrane gas absorption

A membrane gas absorption (MGA) process was evaluated in this work for CO2 capture from CO2/N2 gas-mixed streams at room temperature. The experimental study of a polypropylene (PP) hollow fiber membrane contactor in combination with the technique of CO2 absorption into aqueous solutions of activated methyldiethanolamine (MDEA) and MDEA as absorbents was carried out. A laboratory-scale setup, in which the solution with CO2 loading was able to be hot-regenerated into the solution without CO2 loading and used circularly, was established in this study. The effects of a variety of operation factors, such as gas and liquid flow rates, membrane pore-wetting, and liquid CO2 loading, on the separation performance of the membrane contactor were investigated. The absorption performances were compared between activated MDEA and MDEA. A mathematical model was developed to simulate the mass-transfer behavior of the membrane gas−liquid contactor. The experimental results show that the use of a membrane gas−liquid contac...

Absorption of CO2 into aqueous solutions of methyldiethanolamine and activated methyldiethanolamine from a gas mixture in a hollow fiber contactor

A composite solution used for membrane contactor to absorb acidic gas is composed of amino acid salt and activator in mole ratio of 1: (01-08) Its advantages are high absorptivity and regeneration performance, high surface tension, and high running stability and durability

Composite solution for membrane contactor to absorb acid gas

Preparation method of composite acid gas absorbent

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Absorption of CO2 into aqueous solutions of methyldiethanolamine and activated methyldiethanolamine from a gas mixture in a hollow fiber contactor

Composite solution for membrane contactor to absorb acid gas

Preparation method of composite acid gas absorbent