Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Polish Journal of Chemical Technology

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: nanowęgle

Sortuj według:

Ogranicz wyniki do:

Removal of SO2 from gases on carbon materials

Narkiewicz U., Pietrasz A., Pełech I., Arabczyk W.

Polish Journal of Chemical Technology

2012

Vol. 14, nr 1

41-45

The aim of the work is to describe a capability of the active carbon CARBON L-2-4 (AC) and of the nanocarbon (NC) materials containing iron nanoparticles to continuously remove SO2 from air. The carbon nanomaterials (NC) containing iron nanoparticles were synthesised using a chemical vapor deposition method - through catalytic decomposition of ethylene on nanocrystalline iron. The process of SO2 removal was carried out on dry and wet with water carbon catalyst (AC or NC) and was studied for inlet SO2 concentration 0.3 vol.% in the presence of O2, N2 and H2O, in the temperature range of 40-80°C.

Technology of the nanocarbon materials preparation

Narkiewicz U.

Polish Journal of Chemical Technology

2005

Vol. 7, nr 3

87-94

The technology of the nanocarbon materials preparation by the catalytic decomposition of hydrocarbons on nanocrystalline iron is described. Among different methods of nanocarbon materials preparation, this one, based on the catalytical gas-solid reaction can be recommended as a simple, inexpensive, easy to control and easy to process scale up-grading. The use of nanocrystalline iron as a raw material enables carrying out the process in the kinetics area of the reaction, when diffusion is not limiting. There is no need to apply special conditions, as high pressure or vacuum, laser ablation or high temperatures (the process can be carried out with good efficiency in the temperature range from 350 to 550°C). Depending on the process conditions, different forms of nanocarbons can be obtained (amorphous carbon, carbon nanofibers or nanotubes).