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Gases, Volume 1, Issue 1

2021 March - 5 articles

Cover Story: Ozone is a powerful oxidant having bactericidal, virucidal, and fungicidal actions, but also adverse effects on human health and safety. This paper suggests contact times and ozone concentrations needed for 90% inactivation of different viruses and explores the safety measures developed under the stimulus of the COVID-19 pandemic outbreak. Ozone generated in situ from ambient air can be used for disinfection of workplaces and public places, but afterwards, its concentration must be reduced to the Occupational Exposure Limit Values set in different European and extra European countries. The paper also examines the disinfection of disposable personal protective equipment for reuse. The optimal use of ozone is without human presence, at a concentration effective for the destruction of viruses, but not high enough to deteriorate materials. View this paper
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Articles (5)

  • Article
  • Open Access
9 Citations
5,373 Views
15 Pages
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A Visual Investigation of CO2 Convective Mixing in Water and Oil at the Pore Scale Using a Micromodel Apparatus at Reservoir Conditions

  • Widuramina Amarasinghe,
  • Seyed Farzaneh,
  • Ingebret Fjelde,
  • Mehran Sohrabi and
  • Ying Guo
Gases2021, 1(1), 53-67;https://doi.org/10.3390/gases1010005

28 January 2021

CO2 convective mixing in water has been visualized in Hele-Shaw and PVT cell experiments but not at the pore scale. Furthermore, CO2 convective mixing in a three-phase system (i.e., CO2 in the presence of both water and oil) has not been visually inv...

Full Article
  • Article
  • Open Access
3 Citations
4,460 Views
18 Pages
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Effects of Pressurizing Cryogenic Treatments on Physical and Mechanical Properties of Shale Core Samples—An Experimental Study

  • Rayan Khalil,
  • Hossein Emadi and
  • Faisal Altawati
Gases2021, 1(1), 33-50;https://doi.org/10.3390/gases1010003

20 January 2021

The technique of cryogenic treatments requires injecting extremely cold fluids such as liquid nitrogen (LN2) into formations to create fractures in addition to connecting pre-existing fracture networks. This study investigated the effects of implemen...

Full Article
  • Technical Note
  • Open Access
67 Citations
29,296 Views
14 Pages
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Safe and Effective Use of Ozone as Air and Surface Disinfectant in the Conjuncture of Covid-19

  • Elena Grignani,
  • Antonella Mansi,
  • Renato Cabella,
  • Paola Castellano,
  • Angelo Tirabasso,
  • Renata Sisto,
  • Mariangela Spagnoli,
  • Giovanni Fabrizi,
  • Francesco Frigerio and
  • Giovanna Tranfo
Gases2021, 1(1), 19-32;https://doi.org/10.3390/gases1010002

24 December 2020

The present paper extrapolates quantitative data for ozone virucidal activity on the basis of the available scientific literature data for a safe and effective use of ozone in the appropriate cases and to explore the safety measures developed under t...

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  • Article
  • Open Access
5 Citations
5,538 Views
18 Pages
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A Techno-Economic Perspective on Natural Gas and Its Value Chain

  • Ruud Egging-Bratseth
Gases2021, 1(1), 1-18;https://doi.org/10.3390/gases1010001

24 November 2020

We describe the elements and actors in the global natural gas value chains with an emphasis on characteristics relevant for large-scale energy system and market modeling. We give backgrounds on natural gas as a hydrocarbon to provide a rationale and...

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Gases - ISSN 2673-5628
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