Kinetics of thermal decomposition processes and kinetics of degradation in rumen liquor of glycerin derived from biodiesel production

Ítavo, Luís Carlos Vinhas; Ítavo, Camila Celeste Brandão Ferreira; Petit, H.V.; Dias, Alexandre Menezes; Santos, Maria da Conceição dos; Souza, Anderson Dias Vieira de; Goularte, Sandra Regina; Leal, Eduardo Souza; Mello, Juliana Antonia Tonetto de; Niwa, Marcus Vinicius Garcia; Moraes, Gabriella Jorgetti de

doi:10.1016/j.indcrop.2017.04.016

Cited by 7 publications

(3 citation statements)

References 33 publications

(41 reference statements)

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“…Employing thermogravimetric analysis, the thermal decomposition of SDBS and glycerol has been investigated previously. The results showed that glycerol can be completely decomposed at a relative low temperature of 290.8 °C, 59 while the decomposition of SDBS requires a much higher temperature. 60 No thermal decomposition happens for SDBS below 217 °C.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Additively Manufactured Zinc Oxide Thin-Film Transistors Using Directed Assembly

Chai

Abbasi

Busnaina

2023

ACS Appl. Electron. Mater.

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Zinc oxide (ZnO) has been extensively investigated for application in thin-film transistors (TFTs) due to its excellent electrical and optical properties. Although some ZnO-based TFTs have been successfully commercialized, the commercially available ZnO TFTs are mainly fabricated by physical vapor deposition methods, such as sputtering, which are costly and require state-of-the-art fabrication facilities. Here, we report the fabrication of ZnO TFTs using additive-directed assembly of ZnO particles into micropatterned films. By controlling the concentration of the ZnO nanoparticle suspension, void-free ZnO micropatterns can be assembled on silicon/silicon dioxide (Si/SiO2) substrates over a 4 in. wafer. The assembled ZnO micropatterns are thermally sintered prior to the deposition of the source/drain electrodes. The results demonstrate that the TFTs fabricated using ZnO micropatterns sintered at or below 800 °C possess high on-currents because of the removal of the stabilizers. However, the TFTs are normally on with I on/I off current ratios below 10 due to the intrinsic high carrier concentration of ZnO. Whereas when the patterns are sintered at 1000 °C, a gate-voltage-modulated field effect appears. The TFTs work in an accumulation mode with I on/I off ratios above 106. The emergent field effect is attributed to high-temperature sintering-induced interdiffusion of Si and Zn elements at the ZnO/SiO2 interface, which causes the formation of the zinc silicate (Zn2SiO4) phase and suppresses the carrier concentration.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Additively Manufactured Zinc Oxide Thin-Film Transistors Using Directed Assembly

Chai

Abbasi

Busnaina

2023

ACS Appl. Electron. Mater.

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“…Glycerinum is a flavoring compound in liquors (Ítavo et al, 2017). In small quantities, it renders the sweet and soft taste of the liquor and reduces spiciness.…”

Section: Results and Analysismentioning

confidence: 99%

Formation of basic soybean‐flavor substances using pork fat soaked in rice‐flavored liquor

Qin

Deng

2021

J. Food Process. Preserv.

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Soybean‐flavored liquor is a distilled low‐alcohol spirit that caters to the modern concept of health. The unique process of its formation involves soaking pork fat in rice liquor. However, fundamental research on this topic is limited. To understand the mechanism underlying soybean flavor formation from the pork fat soaking process, we determined the main flavor substances in soybean‐flavored liquor by optimizing the process of pork fat soaking and analyzed the mechanism underlying soybean flavor formation. The optimal content of pork fat for soaking was 10% (m/m). Pork fat hydrolyzes into glycerinum and short‐chain fatty acids, and subsequently forms esters with alcohol. These short‐chain fatty acids, glycerinum, and esters are important soybean flavor contributors. Soaking at 50°C reduced the time required for soybean flavor formation. However, a lower soaking temperature of 20°C affected the stability of soybean flavor. Practical applications This study is the fundamental research on the formation of soybean‐flavored liquor. More in‐depth research on this liquor will contribute to its scientific production and development, and increase its significance as a distilled low‐alcohol spirit, which could be directly imbibed without dilution or mixed with other liquors, and can be used in cooking to enhance the flavors of pork, fish, seafood, and chicken proteins.

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“…The second temperature range, from 221 to 337 °C, corresponded to the thermoset polymer products formed through the esterification of citric acid and glycerol [19]. Glycerol decomposes at around 290 °C [26]. The temperature response can also be complicated by the degradation of PKS components, and the last stage occurs from 337 to 417 °C with a peak at 317 °C.…”

Section: The Thermal Properties Of Psk Fine Particles Mixed With Glyc...mentioning

confidence: 99%

Employing a mixture of fine-particle PKS, glycerol, and citric acid as an eco-friendly binder for plywood production from rubberwood (Hevea brasiliensis) veneer

Choowang,

Luengchavanon,

Raknarong

2024

J Wood Sci

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Biomass-based adhesives, which are environmentally friendly and sustainable materials enabling low formaldehyde wood composites, have garnered interest. Therefore, palm kernel shells (PKS), available as industrial agricultural residue and rich in lignin, are mixed in form of fine particles with glycerol and citric acid, and tested as a candidate for binder in plywood production. The study focused on examining the effects of two factors: the quantity of adhesive used and the pressing temperature. Glycerol and citric acid are low-cost non-toxic chemicals that activate the functional groups and induce changes in the PKS component during hot pressing. Consequently, the mixtures with PKS as fine particles could cross-link with rubberwood veneer, forming a plywood panel with shear strength and bending strength that meet the requirements outlined in ISO 12466-2: part 2, and in Thai industrial standard (TIS 178-2549) for indoor use. The properties of plywood were primarily influenced by the pressing temperature rather than by the quantity of adhesive. Specifically, the temperatures 180 °C and 200 °C enhanced the extent to which the molten binder penetrated the rubberwood surface, consequently improving the mechanical properties and water resistance of the bonding.

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Kinetics of thermal decomposition processes and kinetics of degradation in rumen liquor of glycerin derived from biodiesel production

Cited by 7 publications

References 33 publications

Additively Manufactured Zinc Oxide Thin-Film Transistors Using Directed Assembly

Additively Manufactured Zinc Oxide Thin-Film Transistors Using Directed Assembly

Formation of basic soybean‐flavor substances using pork fat soaked in rice‐flavored liquor

Employing a mixture of fine-particle PKS, glycerol, and citric acid as an eco-friendly binder for plywood production from rubberwood (Hevea brasiliensis) veneer

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