New Chemical Fibers Obtained from Wood, Activated by Steam Explosion Treatment

Сафин, Р. Г.; Просвирников, Д. Б.; Tuntsev, D.

doi:10.4028/www.scientific.net/ssp.299.1017

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…The actual gas velocity should coincide with the calculated one or exceed it by no more than 8% [21][22][23][24][25][26][27][28][29][30].…”

Section: Wd = Qv/smentioning

confidence: 75%

Simulation of the process of grinding and transporting organic waste in an activated carbon production unit

Safin,

Sotnikov

2023

E3S Web Conf.

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Today, the processing of organic waste, such as wood chips, technological chips, sawdust, sunflower husks, car tires, walnut shells, seeds of various vegetables and fruits, is becoming more and more popular. The industry is developing promising devices for waste processing with subsequent production of useful products for economic activity. Along the way, the question arises of grinding and transporting these wastes to the place of their processing. In particular, for an installation for the production of activated carbon from bulk waste, it is necessary to design grinding and transportation zones. In the work, on the basis of the selected grinder, a pneumotransport unit for feeding crushed organic waste to an activated carbon production unit was modeled. Mathematical modeling of the waste transfer process has been carried out, which makes it possible to determine the rational parameters of the raw material preparation zones. An algorithm for calculating a vertical pneumatic transport system has been developed, which can be used to calculate technological processes associated with the need to supply and subsequent vertical transportation of raw materials. Dependences were obtained: the speed of soaring on the bulk density of particles, the results of which revealed a significant effect of the thickness of the particle on its speed of soaring in the pneumatic pipeline, as well as the dependence of the diameter of the pipeline on the volumetric flow rate and type of raw material, which demonstrated an increase in the diameter of the pipeline with a decrease in the bulk particle density. The results of these dependencies can be used in the creation or modernization of vertical pneumatic transport systems designed for small volumes of transported raw materials.

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“…The actual gas velocity should coincide with the calculated one or exceed it by no more than 8% [21][22][23][24][25][26][27][28][29][30].…”

Section: Wd = Qv/smentioning

confidence: 75%

Simulation of the process of grinding and transporting organic waste in an activated carbon production unit

Safin,

Sotnikov

2023

E3S Web Conf.

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“…However, the production of such materials has a number of disadvantages, for example: chemically synthesized thermosets are used as adhesives for binding fibers and particles [6,7], which have an adverse effect on the environment and humans both during production and during further operation; synthetic binders are very expensive -their cost comes up to the most of the cost of the finished product [8,9]. The most promising method for recycling wood waste is the production of board materials based on a press mass obtained as a result of deep physical and mechanical modification of wood by the method of steam explosive treatment [10,11,12]. This activation method allows you to turn wood waste into a product suitable for the manufacture of board materials without the use of synthetic binders such as phenol-, urea-, amino-formaldehyde resins [13].…”

Section: Intorductionmentioning

confidence: 99%

Evaluation of the Influence of the Conditions of Catalytic Continuous Steam Explosive Activation of Wood on the Physical and Operational Properties of Wooded Composite Materials Based on Activated Fibers

Просвирников

Сафин

Kozlov

2021

KEM

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This article presents the results of studies of obtaining wood composite board materials without binders using the method of preliminary steam explosive treatment, as well as an assessment of the impact of impregnation conditions and continuous steam explosive activation of wood on the physical and operational properties of wood-based composite materials based on activated fibers. The rational operating parameters for obtaining board wood-composite materials (WCM) have been determined. We established the influence of impregnation modes (temperature, catalyst concentration), continuous steam explosive treatment with afterwash (temperature, pressure, intensity of mechanical action), as well as the properties of activated lignocellulose fibers (composition and morphological structure) on the operational properties of WCM. The expediency of introducing a catalyst (sodium bisulfite) at the washing stage has been proved, since the introduction of sodium bisulfite during impregnation before steam explosive treatment promotes the formation of lignosulfonates in the activated material, which participate in the formation of the physical properties of WCM.

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“…Данная стадия направлена на разделение оболочек в волокнистую массу заданных свойств. Наиболее приемлемым режимом является фибриллирующий размол [4,8].…”

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Producing cellulose fiber from husks sunflower

Tuntsev,

Kulikov,

Prosvirnikov

et al. 2023

asj

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The article discusses the results of research on obtaining cellulose fiber from sunflower husks. A complete technological scheme of plant raw materials processing is presented. The studies have proved the possibility of obtaining cellulose fiber from sunflower husk. The average weighted length of the fiber was 0.495 mm, width 30.8 microns. It has been revealed that 59,1 % of the total weight of the obtained fiber can be attributed to the conditioned fiber having bougoyage-forming properties.

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New Chemical Fibers Obtained from Wood, Activated by Steam Explosion Treatment

Cited by 4 publications

References 23 publications

Simulation of the process of grinding and transporting organic waste in an activated carbon production unit

Simulation of the process of grinding and transporting organic waste in an activated carbon production unit

Evaluation of the Influence of the Conditions of Catalytic Continuous Steam Explosive Activation of Wood on the Physical and Operational Properties of Wooded Composite Materials Based on Activated Fibers

Producing cellulose fiber from husks sunflower

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