## 6 Discussion and Conclusions  
The obtained knowledge on the rapid generation of natural gas confirmed that it is possible to find a technological process that can generate natural gas hydrates in orders of magnitude shorter times compared to the classical methods of generating natural gas hydrates in autoclaves by water saturation only. While without mixing of water and gas it takes up to several hours to generate hydrates, our proposed and tested method of generating hydrates has times in the order of minutes. Hydrates of natural gas or methane have interesting potential, and therefore the future need for energy originating from hydrocarbon sources may be a requirement for improving synthetic hydrate formation processes. A promising option is to accumulate standard natural gas in the form of artificially formed hydrates, with subsequent storage and, in cases of need to cover energy peaks, future release. Gas storage in this form is possible at relatively high temperatures and low pressures compared to other gaseous hydrocarbon storage technologies. The technique of rapid and continuous gas hydrate formation could rival current means of storing and transporting these energy reserves in a more than economically efficient aspect, but again, development is needed in these new technologies. For rapid and continuous hydrate formation technologies, knowledge of the typical mechanisms of hydrate formation is required. Methane hydrate beds are formed at locations where methane and water are present at temperatures and pressures that are favorable for hydrate formation. These conditions are most commonly found in marine sediments and Arctic permafrost. However, this natural hydrate has been forming for hundreds and perhaps thousands of years. In our case, we were able to produce it in times corresponding to minutes and hours. I also consider the experimental verification of the energy-efficient formation of fast hydrates on a real experimental device to be a contribution. The proposed and implemented method of drying and cooling of the generated hydrate by means of gas flow cooled by the Joule-Thomson effect can also be evaluated as positive. The hydrate generated by us could be removed from the pressure vessel VN2 after removal of the sapphire visors and it showed stability for more than 1 h in air at an ambient temperature of about 30 \({}^{\circ}\)C.  
Hydrates can find applications in various sectors of technology or industry. Specifically, the solution is suitable for application in the energy and industrial sectors to cover energy peaks that are financially demanding, in cogeneration and trigeneration, e.g., with the possibility of using waste heat for heating and subsequent release of stored energy when needed. Very interesting applications of hydrates are emerging for carbon footprint reduction. Carbon dioxide together with water forms hydrates at even lower energy requirements than natural gas hydrates, and the hydrates thus formed are stable and keep carbon dioxide  
Figure 9: Images of the sapphire visor on VN2 during the experiment, scale 1:1.  
in a stable form for a long time. If the storage temperature of such CO\({}_{2}\) hydrate is not raised, the storage times of carbon dioxide are unlimited. Conceptualization, D.H. and P.M.; methodology, M.M. ; software, D.H.; validation, N.C.K., Z.K., and P.M.; formal analysis, P.B. ; investigation, P.H. ; resources, P.H. ; data curation, M.M. ; writing--original draft preparation, D.H.; writing--review and editing, D.H.; visualization, P.B. ; supervision, M.M. ; project administration, Z.K. ; funding acquisition, N.C.K. All authors have read and agreed to the published version of the manuscript. This paper was supported under the project of Operational Programme Integrated Infrastructure: Independent research and development of technological kits based on wearable electronics products, as tools for raising hygienic standards in a society exposed to the virus causing the COVID-19 disease, ITMS2014+ code 313011 ASK8.