Pyrolytic Processing of Cellulose-Containing Wastes from Food Industry Plants

Sklyadnev, E. V.; Ryazanov, A. N.; Panov, S. Yu.; Balabanova, M. Yu.; Зинковский, А. В.

doi:10.1007/s10556-016-0209-2

Cited by 2 publications

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“…For comparison, in the work of Aho et al [19], during pyrolysis of the beet pulp in a fluidized bed reactor at a temperature of 500 • C, the carbon content in the char was higher by 17.5% than it was in our research. However, in the studies of Sklyadnev et al [18], during pyrolysis of sugar beet pulp in a fixed bed reactor at 510 • C, the carbon content in the char was equal to 85.6 wt.%.…”

Section: Char Propertiesmentioning

confidence: 94%

“…Due to the lack of significant auto-gasification of the char, the yields of the pyrolysis process were determined at a temperature of 600 • C. The obtained yields of pyrolysis products were referred to dry basis (Figure 4). In the studies conducted by Sklyadnev et al [18], the temperature of 510 • C was assumed to be the optimal temperature for beet pulp pyrolysis. This work presents the yields of the pyrolysis process only for samples with a mass fraction of defecation lime in the range from 0 to 0.4, due to low HHV of pyrolysis products with a higher mass fraction of defecation lime.…”

Section: Production Yield Of Char Tar and Gasmentioning

confidence: 99%

“…Most of the research on sugar industry waste concerned the sugarcane bagasse [10][11][12][13][14] because the sugarcane bagasse has twice the cellulose content and more than 10 times higher lignin content than beet pulp [8]. To date, the pyrolysis process with sugar beet pulp has been studied in the thermobalance [15,16], in the fixed bed reactor [17,18] and in the fluidized bed reactor [19].…”

Section: Introductionmentioning

confidence: 99%

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Co-Pyrolysis of Beet Pulp and Defecation Lime in TG-MS System

et al. 2020

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The process of pyrolysis of beet pulp, a by-product after the extraction of raw sugar from sugar beet, with the addition of defecation lime was studied in a thermobalance coupled with a mass spectrometer. The beet pulp pyrolysis process took place completely at 600 °C, and the resulting char, tar and gas were characterized by higher heating values of 23.9, 21.6 and 7.77 MJ/kg, respectively. The addition of the defecation lime to beet pulp caused both an increase in the char production yield and a decrease in the tar production yield. At the same time, the higher heating value of char and tar decreased along with the increase of defecation lime added to the sample. The deconvolution of derivative thermogravimetric (DTG) curves allowed us to identify the basic components of beet pulp, for which the activation energy by isoconversion method was calculated. The 20 wt.% addition of defecation lime caused an increase of the activation energy by about 18%. Further increase in the defecation lime content resulted in a reduction of activation energy. At the temperature above 600 °C, calcination of calcium carbonate contained in defecation lime occurred. The CO2 produced during calcination process did not cause auto-gasification of char.

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Section: Char Propertiesmentioning

confidence: 94%

Section: Production Yield Of Char Tar and Gasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Co-Pyrolysis of Beet Pulp and Defecation Lime in TG-MS System

et al. 2020

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“…300–600 °C on average) [ 23 ]. Currently, these are used mainly as external energy sources (natural gas, electricity) to heat the reactor, which means that biomass processing in such a process may not be economically beneficial [ 24 ]. In some applications, the pyrolytic gas can be used to heat the reactor [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

“…Defecation lime, due to its high lime content (CaCO 3 ) and the presence of P 2 O 5 , K 2 O, MgO, and Na 2 O, is used as a fertilizer for plant cultivation. Fresh beet pulp contains cellulose and hemicellulose (~40%), pectin (up to 50%), proteins (2%), sugars (2–3%), minerals (2%), and a small number of vitamins and organic acids [ 24 ]. Beet pulp can be used as animal feed and as a raw material in cosmetic and paper industries [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Batch Pyrolysis and Co-Pyrolysis of Beet Pulp and Wheat Straw

et al. 2022

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Granulated beet pulp and wheat straw, first separately and then mixed in a weight ratio of 50/50%, underwent a pyrolysis process in a laboratory batch generator with process temperatures of 400 and 500 °C. The feedstock’s chemical composition and the pyrolysis products’ chemical composition (biochar and pyrolysis gas) were analysed. A synergistic effect was observed in the co-pyrolysis of the combined feedstock, which occurred as an increase the content of the arising gas in relation to the total weight of the products. and as a reduction of bio-oil content. The maximum gas proportion was 21.8% at 500 °C and the minimum between 12.6% and 18.4% for the pyrolysis of individual substrates at 400 °C. The proportions of the gases, including CO, CO2, CH4, H2, and O2, present in the resulting synthesis gases were also analysed. The usage of a higher pyrolysis final temperature strongly affected the increase of the CH4 and H2 concentration and the decrease of CO2 and CO concentration in the pyrolysis gas. The highest percentage of hydrogen in the synthesis gas, around 33%vol, occurred at 500 °C during co-pyrolysis.

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Pyrolytic Processing of Cellulose-Containing Wastes from Food Industry Plants

Cited by 2 publications

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Co-Pyrolysis of Beet Pulp and Defecation Lime in TG-MS System

Co-Pyrolysis of Beet Pulp and Defecation Lime in TG-MS System

Batch Pyrolysis and Co-Pyrolysis of Beet Pulp and Wheat Straw

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