scholarly journals A new strategy for membrane-based direct air capture

2020 ◽  
Vol 53 (1) ◽  
pp. 111-119
Author(s):  
Shigenori Fujikawa ◽  
Roman Selyanchyn ◽  
Toyoki Kunitake
Keyword(s):  
Membrane Separation ◽  
New Technology ◽  
Chemical Processes ◽  
Organic Polymer ◽  
Separation Performance ◽  
Separation Membranes ◽  
Direct Air Capture ◽  
New Strategy ◽  
Air Capture ◽  
And Performance

AbstractDirect CO2 capture from the air, so-called direct air capture (DAC), has become inevitable to reduce the concentration of CO2 in the atmosphere. Current DAC technologies consider only sorbent-based systems. Recently, there have been reports that show ultrahigh CO2 permeances in gas separation membranes and thus membrane separation could be a potential new technology for DAC in addition to sorbent-based CO2 capture. The simulation of chemical processes has been well established and is commonly used for the development and performance assessment of industrial chemical processes. These simulations offer a credible assessment of the feasibility of membrane-based DAC (m-DAC). In this paper, we discuss the potential of m-DAC considering the state-of-the-art performance of organic polymer membranes. The multistage membrane separation process was employed in process simulation to estimate the energy requirements for m-DAC. Based on the analysis, we propose the target membrane separation performance required for m-DAC with competitive energy expenses. Finally, we discuss the direction of future membrane development for DAC.

scholarly journals Correction: A new strategy for membrane-based direct air capture

2020 ◽  
Vol 53 (1) ◽  
pp. 219-219
Author(s):  
Shigenori Fujikawa ◽  
Roman Selyanchyn ◽  
Toyoki Kunitake
Keyword(s):  
Direct Air Capture ◽  
New Strategy ◽  
Air Capture

Grafting of multi-block copolymers: A new strategy for improving membrane separation performance for ethyl tert-butyl (ETBE) bio-fuel purification by pervaporation

2014 ◽  
Vol 469 ◽  
pp. 31-42 ◽  
Author(s):  
Miao Wang ◽  
Carole Arnal-Herault ◽  
Claire Rousseau ◽  
Aurélie Palenzuela ◽  
Jérôme Babin ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Membrane Separation ◽  
Separation Performance ◽  
Tert Butyl ◽  
New Strategy

scholarly journals Characterization and Performance of Direct Air Capture Sorbent

2017 ◽  
Vol 114 ◽  
pp. 6087-6101 ◽  
Author(s):  
Jere Elfving ◽  
Cyril Bajamundi ◽  
Juho Kauppinen
Keyword(s):  
Direct Air Capture ◽  
Air Capture ◽  
And Performance

Chlorinated reclaimed rubber: preparation, structure and performance

2019 ◽  
Vol 48 (3) ◽  
pp. 249-255 ◽  
Author(s):  
Yutian Yao ◽  
Qiusheng Song ◽  
Xiansu Cheng ◽  
Yonghai Song ◽  
Ben Liu
Keyword(s):  
Large Scale ◽  
Mechanical Performance ◽  
New Technology ◽  
New Materials ◽  
Content Type ◽  
Waste Rubber ◽  
New Strategy ◽  
Infrared Spectrometer ◽  
Recycled Rubber ◽  
And Performance

PurposeThe purpose of this study is to investigate the effect of chlorination on the structure and properties of reclaimed rubber and to discuss the feasibility of a novel method to chlorinate reclaimed rubber.Design/methodology/approachA series of chlorinated reclaimed rubber with different chlorination degrees (CD) was prepared by suspension chlorination in aqueous phase (SCAP). Their structure and performance were characterized by Fourier transform infrared spectrometer, energy dispersive spectroscopy, scanning electron microscopy, thermogravimetric and mechanical property test.FindingsThe chemistry structure, mechanical performance and heat resistance of CRR is affected greatly by its CD.Research limitations/implicationsAlthough in the present work only chlorination of reclaimed rubber is researched, but this method can be used to modify other recycled rubber.Practical implicationsSCAP is a useful method to produce CRR, and it is feasible for production of chlorinated recycled rubber in large scale. The present work provides a new strategy to fabricate new materials based on recycled rubber.Social implicationsChlorination of reclaimed rubber by SCAP is useful to convert waste rubber into new materials, and it is useful to decrease environment pollution.Originality/valueSCAP method provides a new technology to chlorinate waste rubber with many merits, such as chlorination rate of RR is accelerated and the reaction can be controlled or adjusted easily. Moreover, conversion of chlorine is increased remarkably.

scholarly journals CO2 from direct air capture as carbon feedstock for Fischer-Tropsch chemicals and fuels: Energy and economic analysis

2021 ◽  
Vol 46 ◽  
pp. 101487
Author(s):  
Marco Marchese ◽  
Giulio Buffo ◽  
Massimo Santarelli ◽  
Andrea Lanzini
Keyword(s):  
Economic Analysis ◽  
Fischer Tropsch ◽  
Direct Air Capture ◽  
Air Capture

Advances in MXene Films: Synthesis, Assembly, and Applications

2021 ◽  
Author(s):  
Xiaohua Li ◽  
Feitian Ran ◽  
Fan Yang ◽  
Jun Long ◽  
Lu Shao
Keyword(s):  
Spin Coating ◽  
Reaction Mechanisms ◽  
Membrane Separation ◽  
Synthesis Methods ◽  
Metal Carbides ◽  
Max Phases ◽  
Practical Applications ◽  
Coating Methods ◽  
And Performance ◽  
Important Form

AbstractA growing family of two-dimensional (2D) transition metal carbides or nitrides, known as MXenes, have received increasing attention because of their unique properties, such as metallic conductivity and good hydrophilicity. The studies on MXenes have been widely pursued, given the composition diversity of the parent MAX phases. This review focuses on MXene films, an important form of MXene-based materials for practical applications. We summarized the synthesis methods of MXenes, focusing on emerging synthesis strategies and reaction mechanisms. The advanced assembly technologies of MXene films, including vacuum-assisted filtration, spin-coating methods, and several other approaches, were then highlighted. Finally, recent progress in the applications of MXene films in electrochemical energy storage, membrane separation, electromagnetic shielding fields, and burgeoning areas, as well as the correlation between compositions, architecture, and performance, was discussed.

scholarly journals An inter-model assessment of the role of direct air capture in deep mitigation pathways

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Giulia Realmonte ◽  
Laurent Drouet ◽  
Ajay Gambhir ◽  
James Glynn ◽  
Adam Hawkes ◽  
...  
Keyword(s):  
Model Assessment ◽  
Direct Air Capture ◽  
Air Capture
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