Steam Charcoal Activation from Bamboo

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UDС

662.71+630*867.5

DOI:

10.17238/issn0536-1036.2018.4.140

Abstract

The paper studies the pyrolysis of bamboo stems (Bambos bambusa) to preserve the original structure in the resulting lump charcoal. Bamboo pieces are subjected to slow pyrolysis in a 4-liter stainless steel reactor equipped with an external electric heater according to the periodic scheme. Activation of lump charcoal is carried out by superheated steam at a tempera-ture of 970 °C. The authors determine the adsorption activity for iodine, specific surface area, volume and pore size distribution for the obtained monolithic nanostructured carbon material. Analysis of sorption-desorption isotherms for the resulting material and pore size distribution diagrams indicate a microporous structure of the resulting material. The volume of micropores established by four different methods, is 0.26…0.29 cm³/g and is practically independent on the method of determination. Micropores make the main contribution to the porous structure of charcoal; their volume comprises the major part (85 %) of the total volume.

Authors

Chu Cong Nghi¹, Postgraduate Student
A. А. Spitsyn¹, Candidate of Engineering Sciences, Associate Professor
K. А. Romanenko², Postgraduate Student
D. A. Ponomarev¹, Doctor of Chemical Sciences, Professor

Affiliation

¹Saint Petersburg State Forest Technical University under name of S.M. Kirov, Institutskiy per., 5, У, Saint Petersburg, 194021, Russian Federation; e-mail: congnghich19a@gmail.com, spitsyn.andrey@gmail.com, dponomarev1@mail.ru
²Northern (Arctic) Federal University named after M.V. Lomonosov, Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, 163002, Russian Federation; e-mail: kristinaromanenko@yandex.ru

Keywords

bamboo, steam activation, active carbon, monolithic carbon, pyrolysis

For citation

Chu Cong Nghi, Spitsyn A.А., Romanenko K.А., Ponomarev D.A. Steam Charcoal Activation from Bamboo. Lesnoy zhurnal [Forestry journal], 2018, no. 4, pp. 140–149. DOI: 10.17238/issn0536-1036.2018.4.140

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Received on February 14, 2018