Author/Authors :
Ghozatloo، A نويسنده Transport Phenomena and Nanotechnology Laboratory, Department of Chemical Eng., University of Tehran, Tehran, Iran,Nano Technology Research Center, Research Institute of Petroleum Industry (RIPI), West Blvd. Azadi Sport Complex, Tehran, Iran , , Shariaty-Niassar، M نويسنده Transport Phenomena and Nanotechnology Laboratory, Department of Chemical Eng., University of Tehran, Tehran, Iran ,
Abstract :
Using Co-Mo/MgO catalyst, single walled carbon nanotubes with a diameter of 2 nm
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 1 w% 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
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.
