Experimental and Mathematical Optimization of the Peroxide Delignification of Larch Wood in the Presence of MnSO(4)Catalyst : научное издание | Научно-инновационный портал СФУ

Experimental and Mathematical Optimization of the Peroxide Delignification of Larch Wood in the Presence of MnSO(4)Catalyst : научное издание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1134/S2070050420030125

Ключевые слова: larch wood, delignification, hydrogen peroxide, acetic acid, mnso(4)catalyst, mathematical optimization, cellulose, mnso4 catalyst

Аннотация: Experiments and calculations are used to determine the optimum parameters of the peroxide delignification of larch wood in the presence of MnSO(4)catalyst that provides high yields of cellulose (44.3 wt %) with low residual lignin contents at a temperature of 100 degrees C, an H(2)O(2)content of 6 wt %, a CH3COOH content of 25 wt %, a LWR of 15, and a duration of 3 h The cellulose obtained under optimum conditions has a chemical composition of cellulose, 92.7 wt %; lignin, 0.6 wt %; and hemicellulose, 5.7 wt %. IRS and X-ray diffraction are used to determine that cellulose obtained from larch wood has a structure similar to that of industrial microcrystalline cellulose. The proposed catalytic approach allows cellulose to be obtained from larch wood with a minimal lignin content under mild conditions in one step and with a high yield, a degree of crystallinity of 0.8, and a crystallite size of 3.0 nm.

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Издание

Журнал: CATALYSIS IN INDUSTRY

Выпуск журнала: Vol. 12, Is. 3

Номера страниц: 265-272

ISSN журнала: 20700504

Место издания: MOSCOW

Издатель: MAIK NAUKA-INTERPERIODICA

Авторы

  • Sudakova I.G. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia)
  • Garyntseva N.V. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia)
  • Chudina A.I. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia)
  • Kuznetsov B.N. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)

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