Recent advances in polymeric membranes for CO2 capture

Han, Yang; Ho, W.S. Winston

doi:10.1016/j.cjche.2018.07.010

Cited by 145 publications

(62 citation statements)

References 167 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fillers incorporated into the polymer matrix can be classified into porous (zeolite [65], graphene oxide [66], carbon molecular sieve (CMS) [67], metal organic framework (MOF) [68] and carbon nanotubes (CNTs) [69]) and nonporous (silica [70] and titanium oxide (TiO 2 ) [71]) fillers [72]. For porous filler, the transportation of gas molecules through the filler follows the effects of molecular sieve and surface diffusion [73]. The term molecular sieve defines a class of material that separates different gases in a mixture by their molecular size or shape [15].…”

Section: Gas Permeation Mechanism Through Mixed Matrix Membrane (Mmm)mentioning

confidence: 99%

Potential of adsorbents from agricultural wastes as alternative fillers in mixed matrix membrane for gas separation: A review

Ghazali

Rahman

Samah

2020

Green Processing and Synthesis

View full text Add to dashboard Cite

AbstractMixed matrix membrane (MMM), formed by dispersing fillers in polymer matrix, has attracted researchers’ attention due to its outstanding performance compared to polymeric membrane. However, its widespread use is limited due to high cost of the commercial filler which leads to the studies on alternative low-cost fillers. Recent works have focused on utilizing agricultural wastes as potential fillers in fabricating MMM. A membrane with good permeability and selectivity was able to be prepared at low cost. The objective of this review article is to compile all the available information on the potential agricultural wastes as fillers in fabricating MMM for gas separation application. The gas permeation mechanisms through polymeric and MMM as well as the chemical and physical properties of the agricultural waste fillers were also reviewed. Additionally, the economic study and future direction of MMM development especially in gas separation field were discussed.

show abstract

Section: Gas Permeation Mechanism Through Mixed Matrix Membrane (Mmm)mentioning

confidence: 99%

Potential of adsorbents from agricultural wastes as alternative fillers in mixed matrix membrane for gas separation: A review

Ghazali

Rahman

Samah

2020

Green Processing and Synthesis

View full text Add to dashboard Cite

show abstract

“…Nowadays, the most advanced and mature carbon capture technique is solvent absorption [ 7 , 8 , 9 ], but more environmentally friendly approaches have also been studied, such as mineralization [ 10 ], cryogenic separation [ 11 ] and, as in this work, membrane separation [ 12 , 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Pebax® 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture

et al. 2020

View full text Add to dashboard Cite

In this work, the behavior of new GO-based mixed matrix membranes was tested in view of their use as CO2-selective membrane in post combustion carbon capture applications. In particular, the new materials were obtained by mixing of Pebax® 2533 copolymer with different types of graphene oxide (GO). Pebax® 2533 has indeed lower selectivity, but higher permeability than Pebax® 1657, which is more commonly used for membranes, and it could therefore benefit from the addition of GO, which is endowed with very high selectivity of CO2 with respect to nitrogen. The mixed matrix membranes were obtained by adding different amounts of GO, from 0.02 to 1% by weight, to the commercial block copolymers. Porous graphene oxide (PGO) and GO functionalized with polyetheramine (PEAGO) were also considered in composites produced with similar procedure, with a loading of 0.02%wt. The obtained films were then characterized by using SEM, DSC, XPS analysis and permeability experiments. In particular, permeation tests with pure CO2 and N2 at 35°C and 1 bar of upstream pressure were conducted for the different materials to evaluate their separation performance. It has been discovered that adding these GO-based nanofillers to Pebax® 2533 matrix does not improve the ideal selectivity of the material, but it allows to increase CO2 permeability when a low filler content, not higher than 0.02 wt%, is considered. Among the different types of GO, then, porous GO seems the most promising as it shows CO2 permeability in the order of 400 barrer (with an increase of about 10% with respect to the unloaded block copolymer), obtained without reducing the CO2/N2 selectivity of the materials, which remained in the order of 25.

show abstract

“…Most membrane processes are driven by pressure difference that require less energy compared to thermal processes, making the overall processes high energy efficient. The membrane is characterised by high level of compactness, ability to address thermodynamic limitations [156], high contact area [157] owing to drastic reduction in the size of the unit [158] at the expense however of generally high membrane cost. This technology has been employed for carbon capture [159], in photochemical [160,161], electrochemical [162], and thermochemical [82] CO 2 conversion processes aiming to overcome mass transfer resistance and enhance energy efficiency.…”

Section: Intensification Using Membrane Separators and Reactorsmentioning

confidence: 99%

Process intensification technologies for CO2 capture and conversion – a review

2020

View full text Add to dashboard Cite

With the concentration of CO 2 in the atmosphere increasing beyond sustainable limits, much research is currently focused on developing solutions to mitigate this problem. Possible strategies involve sequestering the emitted CO 2 for long-term storage deep underground, and conversion of CO 2 into value-added products. Conventional processes for each of these solutions often have high-capital costs associated and kinetic limitations in different process steps. Additionally, CO 2 is thermodynamically a very stable molecule and difficult to activate. Despite such challenges, a number of methods for CO 2 capture and conversion have been investigated including absorption, photocatalysis, electrochemical and thermochemical methods. Conventional technologies employed in these processes often suffer from low selectivity and conversion, and lack energy efficiency. Therefore, suitable process intensification techniques based on equipment, material and process development strategies can play a key role at enabling the deployment of these processes. In this review paper, the cutting-edge intensification technologies being applied in CO 2 capture and conversion are reported and discussed, with the main focus on the chemical conversion methods.

show abstract

Recent advances in polymeric membranes for CO2 capture

Cited by 145 publications

References 167 publications

Potential of adsorbents from agricultural wastes as alternative fillers in mixed matrix membrane for gas separation: A review

Potential of adsorbents from agricultural wastes as alternative fillers in mixed matrix membrane for gas separation: A review

Pebax® 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture

Process intensification technologies for CO2 capture and conversion – a review

Contact Info

Product

Resources

About