Membrane separation is promising to become an efficient and economical technique for gas separation applications. Membrane-based separation involves using a thin barrier between miscible fluids to separate a mixture. This interface may be molecularly homogeneous in which it is completely uniform in composition and structure, or it may be chemically or physically heterogeneous, in which pores or layered structures are formed. Polymeric membranes become a common practical material for many gas separation applications such as natural gas sweetening, landfill gas recovery, hydrogen recovery and purification, flue gas separation and air separation. This might due to their processability, mechanical strength, economic competitiveness and the scalability. However, polymeric membranes still suffer a trade-off relationship between gas permeability and selectivity based on the Robeson upper-bound. Mixed matrix membranes (MMMs) have experienced rapid growth over the past decade, overcoming the trade-off relationship among polymeric membranes. The trade-off relationship between gas permeability and selectivity is well-known as the primary barrier to developing polymeric membranes for the gas separation process. Mixed matrix membranes (MMMs) can be promoted as a solution to produce the desired membrane for gas separation processes. The general idea for synthesizing MMMs is to induce the thermal, electrical, mechanical, and molecular sieve properties of these Nano materials into the base membrane. The incorporation of silica particles with molecular sieving properties in the polymer matrix is expected to lead to higher permeability, higher selectivity, or both compared to polymeric membranes. Recognizing the importance of MMMs development and application in enhancing syngas quality, the objectives of this project were to: (1) fabricate co-polymer/RHS membranes with good physical and chemical characteristics and to ensure the compatibility of mixed matrix membranes (MMMs); (2) investigate the capability of mixed matrix membranes for separating and/or purifying the trace pollutants (H2S and HCl) from syngas; (3) determine the syngas separation and purification performance of MMMs in biomass gasification.
|Effective start/end date||1/08/21 → 31/07/22|
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):