Mechanism of the thermochemical transformation of wheat grain’s processing waste during heat treatment

  • Khaidar S. Tassibekov Center of Physical and Chemical Methods of Research and Analysis, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Zhenis Zh. Bekishev Center of Physical and Chemical Methods of Research and Analysis, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Rustam R. Tokpayev Center of Physical and Chemical Methods of Research and Analysis, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Kanagat K. Kishibaev Center of Physical and Chemical Methods of Research and Analysis, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Akmaral G. Ismailova Center of Physical and Chemical Methods of Research and Analysis, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Sergey V. Nechipurenko Center of Physical and Chemical Methods of Research and Analysis, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Sergey A. Efremov Center of Physical and Chemical Methods of Research and Analysis, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Mikhail K. Nauryzbayev Center of Physical and Chemical Methods of Research and Analysis, al-Farabi Kazakh National University, Almaty, Kazakhstan
Keywords: processing waste, wheat grain, carbonaceous material, thermal degradation, physicochemical methods

Abstract

The thermal destruction of wheat grain’s processing wastes from Almaty and South Kazakhstan regions was studieв. The structure of the products obtained depending on the temperature of the carbonization process was formed, and the basic physico chemical characteristics of the obtained carbon material based on the WGPW were studied using thermogravimetric analysis, differential scanning calorimetry, IR spectroscopy and EPR spectroscopy. The analysis of the elemental composition of the obtained samples of the sorption material showed that the carbon content in the composition of the obtained carbon material is 75.08 - 76.12%, which in turn can cause a sufficiently high degree of sorption capacity of this material, as well as its mechanical strength. The obtained carbon materials based on OIP were modified with ammonium nitrate (NH4NO3) to improve its physico-chemical characteristics, such as specific surface area, porosity and adsorption capacity by iodine. It is shown that structural transformations of the processing waste of wheat grain (bran) in the process of heat treatment irrespective of temperature (in the studied interval) proceed through the stage of formation of free radicals. The concentration of free radicals formed in this process, as well as the composition of the graphite-like component of the products obtained, are determined by the temperature indices of the process.

References

1 Levin JeD, Barabash ND (1971) Wood Chemistry [Himiya drevesini] 9:145-152. (In Russian)

2 National report on the state of the environment and on the use of natural resources for 2015. 2.3.3. Recycling and recycling of waste [Nacional’nyj doklad o sostojanii okruzhajushhej sredy i ob ispol’zovanii prirodnyh resursov za 2015 god. 2.3.3. Pererabotka i vtorichnoe ispol’zovanie othodov]. Link. (In Russian)

3 Efremov SA, Bortnikova IN, Kovalenko NV, Nauryzbaev MK (2002) Study of the possibility of using a modified shungite sorbent in the processes of sorption of UDMH from soils [Issledovaniye vozmozhnosti ispol’zovaniya modifitsirovannogo shungitvogo sorbenta v protsessakh sorbtsii NDMG iz pochv]. II International Symposium “Physics and Chemistry of Carbon Materials [Fizika i khimiya uglerodnykh materialov]”, Almaty, Kazakhstan. P. 258-259. (In Russian)

4 Kurmanbekov AS, Zhubanova AA, Mansurova RM (2005) Chem Bull Kazakh Univ 41:46-51. (In Kazakh)

5 Veprikova EV, Kuznecova SA, Skvorcova GP, Shhipko ML (2008) Journal of Siberian Federal University. Chemistry 3:286-292. (In Russian)

6 Shilina JuA, Nechipurenko SV, Efremov SA, Nauryzbaev MK (2009) Preparation of polyfunctional sorbents on the basis of vegetable wastes of the Republic of Kazakhstan [Polucheniye polifunktsional’nykh sorbentov na osnove otkhodov rastitel’nogo syr’ya Respubliki Kazakhstan]. Materials of the International Conference “Environmental Problems of the Global World [Ekologicheskiye problemy global’nogo mira]”, Moscow, Russia. P.117-118. (In Russian)

7 Efremova SV (2011) Physicochemical basis and technology of thermal processing of rice husk [Fiziko-himicheskie osnovy i tehnologija termicheskoj pererabotki risovoj sheluhi. Monography. [b.i.], Almaty, Kazakhstan. ISBN 978-601-7146-16-0. (In Russian)

8 Klubova TT, Korolev JuM, Roznikova AP, et al (1986) Pore space and organic matter of collectors and tires [Porovoye prostranstvo i organicheskoye veshchestvo kollektorov i pokryshek]. Nauka, Moscow, Russia. (In Russian)

9 Korolev JuM (1995) Chemistry of Solid Fuel [Khimiya tverdogo topliva] 5:99-111. (In Russian)

10 Kronberg VZh, Sharapova TE, Domburg GJe (1987) Wood Chemistry [Khimiya drevesiny] 3:59-67. (In Russian)

11 Domburg GJe, Sergeeva VN, Trops ZJa (1971) Wood Chemistry [Khimiya drevesiny] 7:55-58. (In Russian)

12 Skljar MG (1984) Physico-chemical basis of sintering of coals [Fiziko-khimicheskiye osnovy spekaniya ugley]. Metallurgiya, Moscow, Russia. (In Russian)

13 Popov VT, Merkulov AA, Polak LS (1986) Russ Journal of Physical Chemistry LX:2692-2697. (In Russian)

14 Bujanov RA (1983) Coking of Catalysts [Zakoksovyvaniye katalizatorov]. Nauka, Novosibirsk, Russia. (In Russian)

15 Mansurov ZA (1998) Chem Bull Kazakh Univ 3:98-104. (In Russian)

16 Yefremova SV (2005) Rubber reinforcing mechanism by shungite filler. Materials of the international scientific and practical conference “The scientific heritage of E. Buketov” dedicated to the 80th anniversary of the birth of E. Buketov, Petropavlovsk, Kazakhstan. P.146-153.

17 Kislicyn AN (1974) Investigation of the chemistry of thermal decomposition of wood components [Issledovaniye khimizma termoraspada komponentov drevesiny]. The author’s abstract of Dissertation for Doctor of Chemical Sciences Degree, Leningrad, Russia. P.36.

18 Efremova SV, Kolesnikov BJa (2004) Strengthening elastomers with shungite filler [Usileniye elastomerov shungitovym napolnitelem]. Physics and Chemistry of Carbon Materials / Nanoengineering: Materials of the III International Symposium, Almaty, Kazakhstan. P.206-208. (In Russian)
Published
2018-06-30
How to Cite
Tassibekov, K., Bekishev, Z., Tokpayev, R., Kishibaev, K., Ismailova, A., Nechipurenko, S., Efremov, S., & Nauryzbayev, M. (2018). Mechanism of the thermochemical transformation of wheat grain’s processing waste during heat treatment. Chemical Bulletin of Kazakh National University, (2), 28-35. https://doi.org/https://doi.org/10.15328/cb1007
Section
Analytical Chemistry