Iranian Association of Chemical Engineering (IAChE) Iranian Journal of Chemical Engineering (IJChE) 1735-5397 11 3 2014 07 01 Effect of Single Walled Carbon Nanotubes on Natural Gas Hydrate Formation 67 73 10198 EN A. Ghozatloo Transport Phenomena and Nanotechnology Laboratory, Department of Chemical Eng., University of Tehran, Tehran, Iran M. Shariaty-Niassar Transport Phenomena and Nanotechnology Laboratory, Department of Chemical Eng., University of Tehran, Tehran, Iran M. Hassanisadi Nano Technology Research Center, Research Institute of Petroleum Industry (RIPI), West Blvd. Azadi Sport Complex, Tehran, Iran Journal Article 2015 07 27 Using Co-Mo/MgO catalyst, single walled carbon nanotubes with a diameter of 2nm and a length of 10 μm were produced by chemical vapor deposition process and characterized by XRD, FTIR and SEM. Synthesized single-walled carbon nanotubes were dissolved in water to make a 1w% solution and stabilized by adding sodium dodecyl sulfate surfactant. The synthesized stabilized nanofluid was used in the gaseous hydrate formation at a temperature of 4˚C and pressure of 1000 psig. The results were compared with a water/surfactant control solution and it was found that carbon<br />nanotubes have reduced the duration of dissolution process by 58.9% and duration of the induction process by 75.5%. In addition, the amount of gas entrapment and stability of the gas in the hydrate were increased by 13.6% and 18.2%,  respectively. https://www.ijche.com/article_10198_ebc52c59616af7800f2beee546111646.pdf