Steam explosion pretreatment of oil palm empty fruit bunches (EFB) using autocatalytic hydrolysis: A biorefinery approach

Medina, Jesús David Coral; Woiciechowski, Adenise Lorenci; Filho, Arion Zandoná; Nigam, Poonam Singh Nee; Ramos, Luiz Pereira; Soccol, Carlos Ricardo

doi:10.1016/j.biortech.2015.08.126

Cited by 83 publications

(40 citation statements)

References 29 publications

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“…However, the band at 1317 cm -1 in the pretreated samples, indicating O-H bending of alcohol group in the cellulose, was stronger than that in the untreated fibers due to the breakdown of ester bond linkages between lignin and carbohydrate, thus making the cellulose more exposed. This was confirmed by the results of the previous study by Medina, et al [29].…”

Section: Effect Of Pretreatment On the Functional Groups Of Opefb Fiberssupporting

confidence: 91%

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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Section: Effect Of Pretreatment On the Functional Groups Of Opefb Fiberssupporting

confidence: 91%

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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“…The results presented inTable 1also show that application of increasing acid concentration or pressure resulted in increased removal of hemicellulose, consistent with literature studies(Monschein & Nidetzky, 2016). More severe pretreatment conditions could also hydrolyze and degrade cellulose, leading to lesser cellulose content in the solid residues(Medina, Woiciechowski, Filho, Nigam, Ramos & Soccol, 2016;Monschein & Nidetzky, 2016). Cellulose degradation may have occurred for the samples pretreated with oxalic acid under 1.2Mpa, as shown inTable 1Compositions and Cellulose CrI of Corncob Samples…”

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confidence: 83%

Deconstruction of corncob by steam explosion pretreatment: Correlations between sugar conversion and recalcitrant structures

Zhang

Yuan

Cheng

2017

Carbohydrate Polymers

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“…The world largest palm oil producers are Indonesia and Malaysia, and Brazil holds the tenth position in the world market . Apart from its importance for the food industry, palm trees are also one of the most important perennial sources of oils for biodiesel production.…”

Section: Introductionmentioning

confidence: 99%

“…Apart from its importance for the food industry, palm trees are also one of the most important perennial sources of oils for biodiesel production. However, palm oil is semisolid at room temperature because it contains considerable amounts of saturated fatty acids in its chemical composition …”

Section: Introductionmentioning

confidence: 99%

Polymer Additives as Cold Flow Improvers for Palm Oil Methyl Esters

Muniz

Vlnieska

Ferraz

et al. 2019

Macromolecular Symposia

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Biodiesel is a fuel that can be originated from different raw materials. However, even a good quality biodiesel has its properties strongly dependent upon its fatty acid profile. For instance, samples with a high content of saturated fatty acids may present poor cold flow properties, meaning that they tend to solidify under low temperatures. In this work, we propose to synthesize polymer additives and apply them as cold flow improvers for palm methyl esters (biodiesel) and their blends with petrodiesel. The synthetic additives were evaluated at different concentrations to assess their effect on the pour point (PP) of the resulting neat or blended biofuel. By using 1000 ppm of poly(dodecyl acrylate‐co‐tetradecyl methacrylate), it was possible to decrease the PP of B5 (5 vol.% biodiesel + 95 vol.% diesel) and B20 (20 vol.% biodiesel + 80 vol.% diesel) to −35 °C and −14 °C, respectively, which allowed the use of these blends in regions where their flow properties would eventually be prohibitive. However, the performance of the additive on the neat fuel (B100) was negligible.

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Steam explosion pretreatment of oil palm empty fruit bunches (EFB) using autocatalytic hydrolysis: A biorefinery approach

Cited by 83 publications

References 29 publications

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

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

Deconstruction of corncob by steam explosion pretreatment: Correlations between sugar conversion and recalcitrant structures

Polymer Additives as Cold Flow Improvers for Palm Oil Methyl Esters

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