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The Technical and Economic Feasibility for the Production of Cellulose from Non-Wood – Agricultural Residues

Halysh Vita, Deykun Irina, Nikolaichuk Alina, Trembus Irina, Cheropkina Romaniia, Ostapenko Alina

Ecological Engineering & Environmental Technology

2022

Vol. 23, iss. 6

99--103

The paper is presented results of the technical and economical evaluation of the production of cellulose for the solving the problem of utilization of agricultural residues of lignocellulosic nature. Non-wood was used in this work for pulping. Treatment was proposed to carry out with the application of peracetic acid. Such method allows to obtain cellulose, lignin, furfural and xylose. Spent peracetic solution can be used to precipitate lignin and for regeneration of acetic acid and to recover furfural and xylose. A technological scheme for the processing of plant raw materials by this method has been developed. Economic efficiency was calculated. The sale of by-products can provide additional financial benefit. Such an approach in the processing of significant volumes of agricultural waste is effective from an economic point of view, as well as from an environmental point of view, as it allows to reduce the negative impact on the environment and to ensure its protection.

Hydroliza materiału roślinnego z gatunku Miscanthus giganteus pod wpływem termochemicznej obróbki

Michalska K., Miazek K., Krzystek L., Ledakowicz S.

Inżynieria i Aparatura Chemiczna

2010

Nr 4

50-51

W pracy zbadano kinetykę rozkładu rośliny Miscanthus giganteus na drodze hydrolizy kwaśnej w podwyższonej temperaturze. Model matematyczny wyznaczony w badaniach pozwala przewidzieć stężenie ksylozy dla różnych warunków prowadzenia reakcji. Jego zastosowanie w skali przemysłowej obniża koszty procesu uwalniania ksylozy przy jednoczesnych zwiększeniu wydajności reakcji hydrolizy. Stosunkowo niewielka energia aktywacji E - 90,32 kJ/mol czyni Miscantusa atrakcyjnym surowcem dla celów przemysłowych.

In this work the kinetics of Miscanthus giganteus decomposition during acid hydrolysis in higher temperature was studied. A mathematical model that was developed enabled us to predict a xylose concentration for different processing conditions. The use of this model in industrial scale leads to the cost reduction in the process of xylose release and increase of hydrolysis reaction efficiency. The relatively low activation energy E = 90.32 kJ/mol makes Miscanthus an attractive source for industrial purposes.