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Open AccessArticle

High-Pressure and Automatized System for Study of Natural Gas Hydrates

1
Institute of Petroleum and Natural Resources, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Avenue, 6681 Porto Alegre/RS, Brazil
2
School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Avenue, 6681 Porto Alegre/RS, Brazil
3
SINC do Brasil Instrumentação Científica LTDA, Coronel Melo Oliveira Perdizes Street, 562 São Paulo/SP, Brazil
4
Department of Biology and Environmental Science, Linnaeus University, 391-82 Kalmar, Sweden
*
Author to whom correspondence should be addressed.
Energies 2019, 12(16), 3064; https://doi.org/10.3390/en12163064
Received: 24 April 2019 / Revised: 19 July 2019 / Accepted: 19 July 2019 / Published: 9 August 2019
(This article belongs to the Special Issue Advances in Natural Gas Hydrates)
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PDF [4184 KB, uploaded 9 August 2019]
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Abstract

Due to the declining of oil reserves in the world in the coming decades, gas hydrate (GH) is seen as the great promise to supply the planet’s energy demand. With this, the importance of studying the behavior of GH, several researchers have been developing different systems that allow greater truthfulness in relation to the conditions where GH is found in nature. This work describes a new system to simulate formation (precipitation) and dissociation of GH primarily at natural conditions at deep-sea, lakes, and permafrost, but also applied for artificial gas hydrates studies (pipelines, and transport of hydrocarbons, CO2, and hydrogen). This system is fully automated and unique, allowing the simultaneous work in two independent reactors, built in Hastelloy C-22, with a capacity of 1 L and 10 L, facilitating rapid analyses when compared to higher-volume systems. The system can operate using different mixtures of gases (methane, ethane, propane, carbon dioxide, nitrogen, ammonia), high pressure (up to 200 bar) with high operating safety, temperature (−30 to 200 °C), pH controllers, stirring system, water and gas samplers, and hyphenated system with gas chromatograph (GC) to analyze the composition of the gases formed in the GH and was projected to possibility the visualizations of experiments (quartz windows). View Full-Text
Keywords: gas hydrate; energy; reactor gas hydrate; energy; reactor
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Rodrigues, L.F.; Ramos, A.; de Araujo, G.; Silveira, E.; Ketzer, M.; Lourega, R. High-Pressure and Automatized System for Study of Natural Gas Hydrates. Energies 2019, 12, 3064.

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