Biogasoline Production from the Co-cracking of the Distilled Fraction of Bio-oil and Ethanol

Wang, Shurong; Cai, Qinjie; Wang, Xiangyu; Zhang, Li; Wang, Yurong; Luo, Zhongyang

doi:10.1021/ef4012615

Cited by 79 publications

(50 citation statements)

References 27 publications

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“…Furthermore, the upgraded oils showed a higher degree of deoxygenation with a quite high heating value and a good combustibility. The upgrading of pyrolysis oil derived from rice husk was investigated by Wang et al (2013). They outlined a unique technique to produce highquality gasoline rich with aromatic hydrocarbons by using a distilled fraction of the pyrolysis oil with ethanol and investigated their co-cracking behaviour using the HZSM-5 catalyst.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Cracking of Pyrolysis Oil Derived from Rubberwood to Produce Green Gasoline Components

2015

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An attempt was made to generate gasoline-range aromatics from pyrolysis oil derived from rubberwood. Catalytic cracking of the pyrolysis oil was conducted using an HZSM-5 catalyst in a dual reactor. The effects of reaction temperature, catalyst weight, and nitrogen flow rate were investigated to determine the yield of organic liquid product (OLP) and the percentage of gasoline aromatics in the OLP. The results showed that the maximum OLP yield was about 13.6 wt%, which was achieved at 511 C, a catalyst weight of 3.2 g, and an N2 flow rate of 3 mL/min. The maximum percentage of gasoline aromatics was about 27 wt%, which was obtained at 595 C, a catalyst weight of 5 g, and an N2 flow rate of 3 mL/min. Although the yield of gasoline aromatics was low, the expected components were detected in the OLP, including benzene, toluene, ethyl benzene, and xylenes (BTEX). These findings demonstrated that green gasoline aromatics can be produced from rubberwood pyrolysis oil via zeolite cracking. University, Had Yai, Songkhla, 90112, Thailand; * Corresponding author: sukritthira.b@psu.ac.th Keywords: Pyrolysis oil; Zeolite cracking; Organic liquid product (OLP); Green gasoline-range aromatics Contact information: Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla INTRODUCTIONBiomass represents a potential alternative source of energy, which is an important complement to fossil fuels. As such, it attracted significant attention as a renewable source of energy after the global oil crisis of the 1970s (Demirbas 2007;Lucia 2008;Demirbas et al. 2009). In addition, biomass currently is considered to be the only sustainable source that can be used to produce energy-related products, including electricity, heat, and valuable chemicals such as resins, flavorings, and other materials (Huber et al. 2006;Dodds and Gross 2007).The first generation of biofuels were primarily bioethanol and biodiesel made from sugar, starch, and vegetable oil. To date, such biofuels have been widely produced across several countries and continents, notably Brazil, South America, Europe, and the United States (Charles et al. 2007;Mojoviä et al. 2009); however, they have been produced from food-grade biomass, which could lead to critical concerns related to food security (Gronowska et al. 2009). Therefore, it is very important to be able to produce biofuels from non-food resources such as ligno-cellulosic materials: wood chips, switch grasses and most importantly agricultural wastes, such as sugarcane bagasse, corn stover and rice straw.Pyrolysis oils derived from wood-based biomass are one of the most promising renewable fuels. They are environmentally-friendly candidates because they contain a low content of sulfur compared to fossil-derived oils (Czernik and Bridgwater 2004). Recently, extensive attention has been focused on the technology of fast pyrolysis rather than slow pyrolysis, as the former produces high yield of pyrolysis oil with low water content in a PEER-REVIEWED ARTICLE bioresources.com Saad et al. (2015). "Cr...

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Section: Introductionmentioning

confidence: 99%

Catalytic Cracking of Pyrolysis Oil Derived from Rubberwood to Produce Green Gasoline Components

2015

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“…The authors' previous study showed that the major components in the bio-oil distilled fraction were acids and ketones, with the total contents approximately 48.6% and 27.5%, respectively (Wang et al 2013b). In particular, HAc, HPO, and CPO derivatives were the typical compounds, with relative contents of 23.9%, 27.9%, and 5.1%, respectively.…”

Section: Methodsmentioning

confidence: 97%

“…The studied hydrogenation temperatures were 200 °C, 250 °C, and 300 °C, which were typically used in the hydrogenation study of bio-oil chemicals (Elliott and Hart 2009). The cracking temperature was set at 400 °C, which was a suitable cracking temperature for the generation of aromatic hydrocarbons as concluded by a previous study (Wang et al 2013b).…”

Section: Catalytic Reactionmentioning

confidence: 99%

“…Studies showed that reaction pressure could affect both hydrogenation and cracking processes: the elevation of hydrogen pressure could improve the hydrogenation efficiency of bio-oil components (Mortensen et al 2011); pressurized cracking favored the formation of liquid hydrocarbons, but this influence became insignificant when the pressure was above 2 MPa (Wang et al 2013b). 4 MPa was selected in this work because the author's previous study using this pressure successfully achieved the hydrogenation of aldehyde group , which is also a typical unsaturated functional group in bio-oil, and similar pressures were also used in the mild hydrogenation of bio-oil components (Vispute et al 2010;Chen et al 2016).…”

Section: Catalytic Reactionmentioning

confidence: 99%

“…The commonly used bio-oil light fractions for upgrading are an aqueous fraction and a distilled fraction (Vispute et al 2010;Wang et al 2013b). The authors' previous research has shown that the bio-oil distilled fraction could enrich light and active acids and ketones, such as acetic acid (HAc), hydroxypropanone (HPO), and cyclopentanone (CPO) derivatives (Wang et al 2009).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Aromatic Hydrocarbon Generation from a Simulated Bio-oil Fraction by Dual-stage Hydrogenation-cracking: Hydrogen Supply and Transfer Behaviors

Cai¹,

Xu²,

Zhang³

et al. 2017

BioResources

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The improvement of the hydrogen-poor composition of bio-oil is important for its cracking to produce aromatic hydrocarbons. In this work, a mild hydrogenation pre-treatment and methanol cocracking were combined to implement proper hydrogen supplementation for cracking. Acetic acid (HAc), hydroxypropanone (HPO), and cyclopentanone (CPO) were selected as model compounds and mixed to prepare a simulated distilled fraction (SDF) of bio-oil. The hydrogen supply and transfer behaviours in hydrogenation-cracking were investigated. For the conversion of individual components: HAc was difficult to be hydrogenated, and therefore in the cracking stage, the conversion and oil phase yield were low; ketones were successfully hydrogenated to alcohols, and thus high aromatic hydrocarbon yields were achieved. Hydrogenation-cracking of SDF showed that the inferior performance of HAc was improved by an internal hydrogen transfer, namely the alcohols produced from ketones supplied hydrogen for HAc conversion. However, because of the high HAc content in SDF, this hydrogen supplement was not sufficient. Therefore, methanol (MeOH) was used as the coreactant for secondary hydrogen supply. The integral efficient conversion of SDF and MeOH to aromatic hydrocarbons was achieved when the MeOH blending ratio was 30%. Finally, a reaction mechanism of hydrogenationcocracking was proposed.

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Dehydration of xylose to furfural in butanone catalyzed by Brønsted‐Lewis acidic ionic liquids

Zhao

et al. 2019

Energy Science & Engineering

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In this study, the most abundant C5 carbohydrate unit in biomass, namely xylose, was chosen as the feedstock, and its hydrothermal conversion for furfural production was carried out in a green and renewable solvent system composed of water and butanone, in order to study the role of FeCl3 and [bmim]Cl of ionic liquid catalyst in the conversion process of xylose. A key intermediate named xylulose from Lewis acid‐catalyzed xylose isomerization was quantified. It was concluded that appropriate content of FeCl3 and [bmim]Cl favored the isomerization‐dehydration reaction path along which xylose was converted into furfural, while excessive amount of either component would result in side reactions leading to furfural consumption at long reaction times. By comparison between ionic liquid catalysts that had different active metal sites, xylose conversion and furfural yields were found to increase when the Lewis acidity of the metal ions became stronger. Moreover, chlorometallate anions with better catalytic performance than the original neutral salts were formed during catalyst preparation, and in this way, the xylose conversion and furfural formation were further promoted. Finally, the optimized ionic liquid catalyst produced a highest furfural yield of 75% and xylose conversion of 99% at 140°C.

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Biogasoline Production from the Co-cracking of the Distilled Fraction of Bio-oil and Ethanol

Cited by 79 publications

References 27 publications

Catalytic Cracking of Pyrolysis Oil Derived from Rubberwood to Produce Green Gasoline Components

Catalytic Cracking of Pyrolysis Oil Derived from Rubberwood to Produce Green Gasoline Components

Aromatic Hydrocarbon Generation from a Simulated Bio-oil Fraction by Dual-stage Hydrogenation-cracking: Hydrogen Supply and Transfer Behaviors

Dehydration of xylose to furfural in butanone catalyzed by Brønsted‐Lewis acidic ionic liquids

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