Thermal stability and pyrolysis kinetics of organosolv lignins obtained from Eucalyptus globulus

Domínguez, Juan Carlos Castillo; Oliet, Mercedes; Alonso, Mar; Gilarranz, Miguel Á.; Rodrı́guez, Francisco

doi:10.1016/j.indcrop.2007.07.006

Cited by 154 publications

(87 citation statements)

References 21 publications

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“…The third stage involved weight loss according to the weight loss of 51.2 % volatile matter at temperature 500 -900 ⁰C. The same results have been reported in literature by Gao et al [14], Zhang et al [16] and Domingueza et al [17]. The DTG curve of Figure 4 shows a significant change occurred due to the weight loss of AC starting of the degradation of hemicelluloses, cellulose and lignin.…”

Section: Results and Discussion Characterization Of The Activated Carbonsupporting

confidence: 77%

Optimization of Activated Carbon Preparation From Spent Mushroom Farming Waste (Smfw) via Box–behnken Design of Response Surface Methodology

Md-Desa¹,

Ghani²,

Talib³

et al. 2016

MJAS

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This study focuses on activated carbon preparation from spent mushroom farming waste (SMFW) via chemical activation using Box-Behnken design (BBD) of Response Surface Methodology (RSM). Potassium hydroxide (KOH) functions as activating reagent and it plays an important role in enhancing the activated carbon porosity. Three input parameters and two responses were evaluated via this software generated experimental design. The effects of three preparation parameters of impregnation ratio, activation time and activation temperature as well as two responses of carbon yield and iodine number were investigated. The optimum conditions for preparing activated carbon from SMFW was found at SMFW: KOH impregnation ratio of 0.25, activation time of 30 min and activation temperature of 400 o C which resulted in 28.23 % of carbon yield and 314.14 mg/g of iodine number with desirability of 0.994. The predicted results were well corresponded with experimental results. This study is important in economical large scale SMFW activated carbon preparation for application study of adsorption process for metal treatment in wastewater with minimum chemical and energy input.Keywords: activated carbon, spent mushroom farming waste, Box-Behnken design, response surface methodology Abstrak Kajian ini memfokuskan penyediaan arang teraktif daripada sisa tanaman cendawan terpakai melalui reka bentuk box-behnken (BBD) dari kaedah gerak balas permukaan (RSM). Potasium hidroksida (KOH) berperanan sebagai agen pengaktifan dan penting untuk meningkatkan liang arang teraktif. Tiga parameter input dan dua respon telah dinilai oleh perisian ini yang dihasilkan oleh rekabentuk eksperimen. Kesan daripada penyediaan tiga parameter iaitu nisbah pemadatan, masa pengaktifan dan suhu pengaktifan serta dua respon iaitu hasil arang teraktif dan nilai iodin telah disiasat. Keadaan optimum dalam penyediaan arang teraktif telah didapati pada nisbah SMFW: KOH iaitu 0.25, tempoh pengaktifan selama 30 min dan suhu pengaktifan 400 °C, di mana ia menghasilkan jumlah maksimum arang teraktif sebanyak 28.23 % dan nilai iodin yang boleh diterima iaitu sebanyak 314.14 mg/g dengan ketepatan 0.994. Keputusan yang telah diramalkan adalah seiring dengan keputusan eksperimen. Kajian ini adalah penting dalam penyediaan arang teraktif secara berskala besar dengan ekonomi daripada sisa tanaman cendawan terpakai untuk kajian proses penjerapan terhadap rawatan logam dalam air sisa dengan input bahan kimia dan tenaga yang minimum. ISSN -2506 Nurul-Shuhada et al: OPTIMIZATION OF ACTIVATED CARBON PREPARATION FROM SPENT MUSHROOM FARMING WASTE (SMFW) VIA BOX-BEHNKEN DESIGN OF RESPONSE SURFACE METHODOLOGY 462Kata kunci: karbon teraktif, sisa tanaman cendawan terpakai, reka bentuk Box-Behnken, kaedah gerak balas permukaan Introduction Activated carbon (AC) is a carbonaceous material with large surface area and high porosity. The surface area and pore size distribution are important factors in determination of AC performance. The macropores act as the entrance to the AC, while the m...

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Section: Results and Discussion Characterization Of The Activated Carbonsupporting

confidence: 77%

Optimization of Activated Carbon Preparation From Spent Mushroom Farming Waste (Smfw) via Box–behnken Design of Response Surface Methodology

Md-Desa¹,

Ghani²,

Talib³

et al. 2016

MJAS

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“…The second weight loss phase is attributed to the lignin, in the temperature interval of 200 to 450 ºC. This extended range is due to the complex structure of the lignin (Domínguez et al 2008). The thermal degradation in this region involved fragmentation of inter-unit linkages between phenolic hydroxyl, carbonyl, and benzylic hydroxyl groups, releasing monomeric phenols (El-Saied and Nada 1993; Domínguez et al 2008;González et al 2009).…”

Section: Thermal Propertiesmentioning

confidence: 99%

“…The thermal degradation in this region involved fragmentation of inter-unit linkages between phenolic hydroxyl, carbonyl, and benzylic hydroxyl groups, releasing monomeric phenols (El-Saied and Nada 1993; Domínguez et al 2008;González et al 2009). At temperatures above approximately 450 °C, it was observed that the third and last stage was due to the condensation and/or decomposition reactions of the aromatic rings (Sun et al 2001;Domínguez et al 2008). …”

Section: Thermal Propertiesmentioning

confidence: 99%

Biorefinery Process Combining Specel® Process and Selective Lignin Precipitation using Mineral Acids

Domínguez-Robles¹,

Espinosa²,

Savy³

et al. 2016

BioResources

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“…Lignin is a promising plant material for the pyrolytic production of biofuels and renewable chemical feedstocks from bio-oils, which are pyrolysis liquids (Domínguez et al 2008). The fractional pyrolysis of lignin was studied over the temperature range 200-900°C in a laboratory scale reactor.…”

Section: New Fuels -New Waste Streamsmentioning

confidence: 99%

14th congress of combustion by-products and their health effects—origin, fate, and health effects of combustion-related air pollutants in the coming era of bio-based energy sources

Weidemann

Andersson

Bidleman

et al. 2016

Environ Sci Pollut Res

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Thermal stability and pyrolysis kinetics of organosolv lignins obtained from Eucalyptus globulus

Cited by 154 publications

References 21 publications

Optimization of Activated Carbon Preparation From Spent Mushroom Farming Waste (Smfw) via Box–behnken Design of Response Surface Methodology

Optimization of Activated Carbon Preparation From Spent Mushroom Farming Waste (Smfw) via Box–behnken Design of Response Surface Methodology

Biorefinery Process Combining Specel® Process and Selective Lignin Precipitation using Mineral Acids

14th congress of combustion by-products and their health effects—origin, fate, and health effects of combustion-related air pollutants in the coming era of bio-based energy sources

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