scholarly journals Radiation-Induced Chemistry of Carbon Dioxide: A Pathway to Close the Carbon Loop for a Circular Economy

2020 ◽  
Vol 8 ◽  
Author(s):  
Maria M. Ramirez-Corredores ◽  
Greeshma Gadikota ◽  
Erin E. Huang ◽  
Anne M. Gaffney
1992 ◽  
Vol 4 (2) ◽  
pp. 278-284 ◽  
Author(s):  
A. E. Novembre ◽  
W. W. Tai ◽  
J. M. Kometani ◽  
J. E. Hanson ◽  
O. Nalamasu ◽  
...  

Author(s):  
Christopher Hall

‘Such quantities of sand’ looks at sustainability and considers three features of the global materials system that need fixing: carbon dioxide emissions, world energy supply, and finite material resources. All societies, however diverse, are comprehensively and universally dependent on material artefacts. The scale of global material flows is enormous, and now greater than for all of human history. In a finite world, there are limits and so it is wise, on some timescale, to favour a circular economy of closed systems (repair, re-use, recycle) over open systems (extract, make, use, discard). Whatever else we do, it helps if we reduce the rate of flow of materials through the economy (use less, use longer).


2020 ◽  
Vol 2 (4) ◽  
pp. 492-512
Author(s):  
Simon P. Philbin

Carbon capture and utilization (CCU) is the process of capturing unwanted carbon dioxide (CO2) and utilizing for further use. CCU offers significant potential as part of a sustainable circular economy solution to help mitigate the impact of climate change resulting from the burning of hydrocarbons and alongside adoption of other renewable energy technologies. However, implementation of CCU technologies faces a number of challenges, including identifying optimal pathways, technology maturity, economic viability, environmental considerations as well as regulatory and public perception issues. Consequently, this research study provides a critical analysis and evaluation of the technology pathways for CCU in order to explore the potential from a circular economy perspective of this emerging area of clean technology. This includes a bibliographic study on CCU, evaluation of carbon utilization processes, trend estimation of CO2 usage as well as evaluation of methane and methanol production. A value chain analysis is provided to support the development of CCU technologies. The research study aims to inform policy-makers engaged in developing strategies to mitigate climate change through reduced carbon dioxide emission levels and improve our understanding of the circular economy considerations of CCU in regard to production of alternative products. The study will also be of use to researchers concerned with pursuing empirical investigations of this important area of sustainability.


2021 ◽  
Vol 9 ◽  
Author(s):  
Elizabeth J. Abraham ◽  
Farah Ramadan ◽  
Dhabia M. Al-Mohannadi

Growing climate change concerns in recent years have led to an increased need for carbon dioxide emission reduction. This can be achieved by implementing the concept of circular economy, which promotes the practice of resource conservation, emission minimization, and the maintenance of sustainable revenue streams. A considerable amount of carbon dioxide emissions is a consequence of stationary sources from industrial processes. These emissions can be reduced using carbon capture utilization and storage (CCUS) or reduced at source by using emission free renewable resources. The method developed within this work uses mixed integer linear programming (MILP) to design sustainable clusters that convert seawater (including waste brine), air, and waste carbon dioxide emissions to value-added products with sunlight as the main energy source. In this way, circular economy is employed to minimize fresh resource consumption and maximize material reuse. The potential of this work is demonstrated through a case study, which shows that an industrial park may be profitable while adhering to strict emission and material constraints.


2020 ◽  
Vol 22 (25) ◽  
pp. 14155-14161
Author(s):  
Ekaterina S. Shiryaeva ◽  
Irina A. Baranova ◽  
Daniil A. Tyurin ◽  
Vladimir I. Feldman

The attachment of radiation-induced electrons to carbon dioxide in inert solid films is controlled by the conduction band energy of quasi-free electrons in the medium.


2019 ◽  
Vol 12 (12) ◽  
pp. 3515-3521 ◽  
Author(s):  
Bastian Molitor ◽  
Akanksha Mishra ◽  
Largus T. Angenent

To prevent an environmental collapse while feeding a population of 10 billion people, dilute nitrogen in waste streams as a nitrogen source and carbon dioxide as a carbon source should be converted into edible protein as part of the circular economy.


Physchem ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 82-94
Author(s):  
Stefano Falcinelli ◽  
Andrea Capriccioli ◽  
Marzio Rosi ◽  
Carles Martì ◽  
Marco Parriani ◽  
...  

The article illustrates the synergy between theoretical/computational advances and advanced experimental achievements to pursue green chemistry and circular economy technological implementations. The specific green chemistry focus concerns the production of carbon neutral fuels by converting waste carbon dioxide into methane. Both theoretical-computational and technological means were adopted to design a functional option implementing a heterogeneous catalysis process (Paul Sabatier (PS) catalytic reduction) to convert carbon dioxide into methane, and to further drive its evolution towards the employment of an alternative homogeneous gas phase plasma assisted technology. The details of both the theoretical and the experimental components of the study are presented and discussed. Future potential developments, including industrial ones, are outlined that are also from innovative collaborative economic prosumer model perspectives.


1965 ◽  
Vol 42 (6) ◽  
pp. 2154-2158 ◽  
Author(s):  
Tsutomu Watanabe ◽  
Hisao Matsumura ◽  
Masamitsu Washino ◽  
Makoto Natori

Sign in / Sign up

Export Citation Format

Share Document