Closed-loop recycling of semi-aromatic polyesters upcycled from poly(ethylene terephthalate)
Not Available
36 MATERIALS SCIENCE↗
Engineering topics
Arifuzzaman, Md
Publications and source records attributed to Arifuzzaman, Md.
Selective deconstruction of mixed plastics by a tailored organocatalyst
The developed highly efficient and versatile organocatalyst can deconstruct multiple condensation polymers selectively and sequentially into corresponding monomers, while keeping other polymers such as polyolefins or cotton intact.
36 MATERIALS SCIENCE↗
Recent development of end-of-life strategies for plastic in industry and academia: bridging their gap for future deployment
Bridging the gap between academia and industry in plastic recycling will accelerate innovation and deployment toward solving the global challenge of plastic waste management and establishing net zero carbon society.
36 MATERIALS SCIENCE↗
A Membrane Contactor Enabling Energy-Efficient CO 2 Capture from Point Sources with Deep Eutectic Solvents
We demonstrate a scalable and energy-efficient hollow fiber membrane contactor (HFMC)-based process using a green solvent for CO 2 capture. This process uses a deep eutectic solvent (DES) in an HFMC to provide close interfacial interactions and contact between the DES and CO 2 . This approach overcomes disadvantages associated with direct absorption in DES and could potentially be applied to a variety of solvent-based CO 2 capture methods. Commercial low-cost polymer hollow fiber membranes (e.g., microporous polypropylene) were evaluated for CO 2 capture with reline, a prototypical DES. Single-gas measurements showed that the DES-based polypropylene HFMC can capture and separate CO 2 while rejecting N2. From a mixed gas containing 50 mol % N 2 and 50 mol % CO ν , the DES-based HFMC separated CO 2 with a purity of 96.9 mol %. The effect of several process parameters including solvent flow rate, pressure, and temperature on the CO 2 separation performance was studied. The flux of the recovered CO 2 was 67.43 mmole/m 2 /h at a feed pressure of 4 bar. In situ Fourier transform infrared (FTIR) measurements combined with density functional theory (DFT)-based molecular dynamics simulations revealed that reline absorbs CO 2 by physical absorption without forming a new chemical compound, and CO 2 separation by reline occurs via the pressure swing mechanism. This research provides fundamental insights about physical solvent-based separation processes and a pathway toward practical deployment.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗