Abstract
The research study focuses on the development and design of hybrid membrane processes for CO2 capture from fossil as well as renewable fuel sources to produce clean energy. As a relatively new and rapidly developing technology, membrane separation presents certain advantages of energy-efficiency, cost-effective and environmental compatibility in comparison with conventional separation processes. Moreover, membrane technology can be coupled with other available separation techniques to improve the efficiency and economics.
Furthermore, membrane-based gas separation technology shows great potential for the market of hydrogen purification for fuel cell applications. Huge demands for high-quality hydrogen products provide the driving force for research and development of membrane materials for hydrogen purification. In addition to the development of advanced membrane materials, membrane performance requirements for CO2 capture and hydrogen production have been extensively investigated.
According to recent study using a two-stage membrane process, the demand (99.9% H2 recovery and 95% H2 purity) for power generation could be met when the H2/CO2 selectivity reaches 11.8 at 30 bar feed pressure, while the CO2/H2 selectivity of 108.5 is necessary. In contrast, the membrane with the CO2/H2 selectivity of 9.2 could achieve the target (99.99% H2 purity and 90% H2 recovery), while the selectivity of 368 is needed for H2-selective membranes.
There is need to investigate and quantify the cost and performance of the hybrid membrane-absorption system for both hydrogen purification and carbon capture. Membranes can easily be combined with other separation processes (such as absorption, adsorption, cryogenics) to yield hybrid processes with cost and performance advantages that neither process could achieve individually. Hence, it would be advantageous to demonstrate the absorption and membrane processes in an integrated test.
Furthermore, membrane-based gas separation technology shows great potential for the market of hydrogen purification for fuel cell applications. Huge demands for high-quality hydrogen products provide the driving force for research and development of membrane materials for hydrogen purification. In addition to the development of advanced membrane materials, membrane performance requirements for CO2 capture and hydrogen production have been extensively investigated.
According to recent study using a two-stage membrane process, the demand (99.9% H2 recovery and 95% H2 purity) for power generation could be met when the H2/CO2 selectivity reaches 11.8 at 30 bar feed pressure, while the CO2/H2 selectivity of 108.5 is necessary. In contrast, the membrane with the CO2/H2 selectivity of 9.2 could achieve the target (99.99% H2 purity and 90% H2 recovery), while the selectivity of 368 is needed for H2-selective membranes.
There is need to investigate and quantify the cost and performance of the hybrid membrane-absorption system for both hydrogen purification and carbon capture. Membranes can easily be combined with other separation processes (such as absorption, adsorption, cryogenics) to yield hybrid processes with cost and performance advantages that neither process could achieve individually. Hence, it would be advantageous to demonstrate the absorption and membrane processes in an integrated test.
| Original language | English |
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| Publication status | Published - 26 Jun 2016 |
| Event | British Council Researcher Links: Energy Security: Sustainable management of natural resources - Almaty, Kazakhstan Duration: 26 Jun 2016 → 2 Jul 2016 |
Workshop
| Workshop | British Council Researcher Links: Energy Security: Sustainable management of natural resources |
|---|---|
| Country/Territory | Kazakhstan |
| City | Almaty |
| Period | 26/06/16 → 2/07/16 |