Production of xylo-sugars from corncob by oxalic acid-assisted ball milling and microwave-induced hydrothermal treatments

Deng, Aojie; Ren, Junli; Wang, Wenju; Li, Huiling; Lin, Qixuan; Yan, Yuhuan; Sun, Run‐Cang; Liu, Guoliang

doi:10.1016/j.indcrop.2015.11.032

Cited by 55 publications

(23 citation statements)

References 32 publications

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“…After 400 • C, the curves of TG and DTG both reached a balanced state, and there was no obvious mass loss. Furthermore, the band at 3,332 cm −1 in the FTIR spectra in Figure 3 was attributed to O-H stretch and that at 2,909 cm −1 to the stretch of -CH 3 (Deng et al, 2016). The absorbance at 1,636 cm −1 characterizes the absorbed water (Peng and Wu, 2010).…”

Section: Analysis Of Carbonization Conditionsmentioning

confidence: 95%

Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde

Zhang

Lin

et al. 2019

Front. Chem.

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Formaldehyde is a colorless, highly toxic, and flammable gas that is harmful to human health. Recently, many efforts have been devoted to the application of activated carbon to absorb formaldehyde. In this work, lignocellulose-based activated carbon fiber paper (LACFP) loaded with manganese dioxide (MnO 2) was fabricated for the adsorption and in-situ catalytic degradation of formaldehyde. LACFP was prepared by two-stage carbonization and activation of sisal hemp pulp-formed paper and was then impregnated with manganese sulfate (MnSO 4) and potassium permanganate (KMnO 4) solutions; MnO 2 then formed by in situ growth on the LACFP base by calcination. The catalytic performance of MnO 2-loaded LACFP for formaldehyde was then investigated. It was found that the suitable carbonization conditions were elevating the temperature first by raising it at 10 • C/min from room temperature to 280 • C, then at 2 • C/min from 280 to 400 • C, maintaining the temperature at 400 • C for 1 h, and then increasing it quickly from 400 to 700 • C at 15 • C/min. The conditions used for activation were similar to those for carbonization, with the temperature additionally being held at 700 • C for 2 h. The conditions mentioned above were optimized to maintain the fiber structure and shape integrity of the paper, being conducive to loading with catalytically active substances. Regarding the catalytic activity of MnO 2-loaded LACFP, the concentration of formaldehyde decreased by 59 ± 6 ppm and the concentration of CO 2 increased by 75 ± 3 ppm when the reaction proceeded at room temperature for 10 h. The results indicated that MnO 2-loaded LACFP could catalyze formaldehyde into non-toxic substances.

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Section: Analysis Of Carbonization Conditionsmentioning

confidence: 95%

Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde

Zhang

Lin

et al. 2019

Front. Chem.

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“…Pretreatment using a combination of microwave heating and oxalic acid for moso bamboo and corncob have been reported by Li, et al [7] and Deng, et al [8], respectively. However, such pretreatment for OPEFB has not been reported.…”

Section: Introductionmentioning

confidence: 95%

Disruption of Oil Palm Empty Fruit Bunches by Microwave-assisted Oxalic Acid Pretreatment

Solihat

Sari

Risanto

et al. 2017

J. Math. Fund. Sci.

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Abstract. Developing an effective pretreatment for the conversion of lignocellulosic biomass to ethanol is an important effort in reducing the cost of this process. Microwave-assisted pretreatment is considered a green technology that can effectively break down lignocellulosic structures. The objective of this study was to investigate the most effective temperature for microwave-assisted oxalic acid pretreatment regarding the structural characteristic changes of oil palm empty fruit bunches (OPEFB) fibers. The fibers were subjected to microwave-assisted oxalic acid pretreatment at 160-200 °C with 2.5 minutes heating time and a liquid to solid ratio of 10. The effectiveness of the pretreatment was determined based on its delignification selectivity, morphological characteristics, and functional group changes. Microwave irradiation of OPEFB fibers at 180 ºC was effective in increasing the cellulose content by 24%. This pretreatment resulted in 1.82 delignification selectivity. More than 50% of the hemicellulose of the OPEFB was removed after this treatment, which was confirmed by a decrease of the absorption bands of functional groups at 1732 cm -1 . The increase of pretreatment temperature disrupted the morphological structure of the OPEFB and removed its hemicellulose but did not change its functional groups and lignin content.

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“…Sometimes, mechanical and chemical pretreatments are used in conjunction to overcome the disadvantages associated with the use of a single pretreatment method. Various combinations of pretreatments, such as hydrothermal and ball milling [12], hot water and disk milling [13], alkaline and dry milling [14], and acidic solutions and ball milling, have been reported to improve sugar production [15,16].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Continuous Pretreatment of Corn Stover: A Comparison of Three Commercially Available Continuous Pulverizing Devices

Kim

Sung

et al. 2019

Energies

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We determined the potential of three mechanical pulverizers—a continuous ball mill (CBM), an air classifier mill (ACM), and a high-speed mill (HSM)—in the continuous pretreatment of corn stover. The mean diameters of the pulverized biomasses were not significantly different in the three cases, and the glucose yields from the CBM-, ACM-, and HSM-pulverized samples were 29%, 49%, and 44%, respectively. The energy requirements and process capacities for the ACM and HSM were similar. We conclude that the ACM and HSM could be used in the continuous pretreatment of corn stover and would be useful in biofuel production.

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Production of xylo-sugars from corncob by oxalic acid-assisted ball milling and microwave-induced hydrothermal treatments

Cited by 55 publications

References 32 publications

Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde

Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde

Disruption of Oil Palm Empty Fruit Bunches by Microwave-assisted Oxalic Acid Pretreatment

Feasibility of Continuous Pretreatment of Corn Stover: A Comparison of Three Commercially Available Continuous Pulverizing Devices

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