Investigation on fuel properties and engine performance of the extraction phase liquid of bio-oil/biodiesel blends

Huang, Yongcheng; Li, Yaoting; Han, Xudong; Zhang, Jiating; Luo, Kun; Yang, Shangsheng; Wang, Jiyuan

doi:10.1016/j.renene.2019.10.028

Cited by 18 publications

(5 citation statements)

References 42 publications

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“…Some major fuel standards, like EN590 are limiting the biodiesel content in diesel fuel blends in order to preserve low-temperature performance of the fuel and reduce the impact on sealing materials which are well-known challenges related to biodiesel utilization. Common advantages of biodiesel over commercial diesel are reflected in reduced emissions of CO, HCs and soot, although some studies have shown a minimal increase of NO x emissions and brake specific fuel consumption [28].…”

Section: Conversion Of Wco To Biodieselmentioning

confidence: 99%

“…The method has also been widely used for the conversion of vegetable oils to biojet fuel. However, there are several challenges such as the catalyst formulation, carbon forming mechanism, evaluation of high pressure and source for hydrogen that need to be considered prior to commercialisation [28]. On the other hand, the CHJ processing method is a conversion technique often conducted on algal or oil plants under mild conditions (250 to 380°C, 5 to 30 MPa in the presence of water or methanol/ethanol solvents) [119],…”

Section: Conversion Of Wco To Biojet Fuelmentioning

confidence: 99%

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Progress in utilisation of waste cooking oil for sustainable biodiesel and biojet fuel production

Goh

Chong

et al. 2020

Energy Conversion and Management

185

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Section: Conversion Of Wco To Biodieselmentioning

confidence: 99%

Section: Conversion Of Wco To Biojet Fuelmentioning

confidence: 99%

Progress in utilisation of waste cooking oil for sustainable biodiesel and biojet fuel production

Goh

Chong

et al. 2020

Energy Conversion and Management

185

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“…As shown in Figure 3. The chemical components in the ES mainly consisted of small molecules and light compounds, 41 and the ether extraction process greatly enhanced the bio-oil quality. In comparison to primary catalytic pyrolysis bio-oil, the relative contents of hydrocarbons, acids, carbonyl groups, phenols, and furans in the ES increased, which was beneficial for promoting the hydrocarbon productions via subsequent catalytic upgrading, while those of alcohols, esters, and sugars decreased, and there was almost no sugar in ES, improving the ES stability.…”

Section: Resultsmentioning

confidence: 99%

Bio-oil Upgrading via Ether Extraction, Looped-Oxide Catalytic Deoxygenation, and Mild Electrocatalytic Hydrogenation Techniques

Zhong

Zhang

2020

Energy Fuels

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To overcome the disadvantages of primary bio-oil, two technical routes, namely, bio-oil ether extraction coupled with ether-soluble fraction microwave-assisted catalytic esterification (ES-MACE) and looped-oxide catalytic deoxygenation/mild electrocatalytic hydrogenation (MECH)/catalytic cracking to produce hydrocarbons, were conducted for bio-oil upgrading. With the first route, it was found that the highest ether extraction efficiency was achieved when the volume ratio of bio-oil/ether was 1:2 and the ES quality was effectively improved in comparison to primary bio-oil; after the ES-MACE, the relative content of acids in the ES decreased dramatically, while that of esters increased. With the second route, the oxygen content in the bio-oil deoxidized by a Zn powder decreased by 23.92%. Moreover, the relative contents of acids, alcohols, and sugars diminished, while those of esters, carbonyls, and phenols rose. Then, the MECH step further refined the deoxidized bio-oil; the relative contents of acids, esters, carbonyls, phenols, sugars, and furans decreased, and that of alcohols increased substantially. At the same time, the hydrogen/carbon effective ratio greatly improved after the refining process. Finally, catalytic cracking by proton-exchanged zeolite Socony Mobil-5 of the obtained bio-oil was carried out to produce hydrocarbons; the carbon yield of aromatics, olefins, and total chemicals increased along with the hydrogen/carbon effective ratio.

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“…In this study, nitrogen oxides (NO x ) values from the diesel engine emission could not be detected by NO x sensor for all tested fuels. The observed phenomenon can be attributed to the insufficient oxygen concentration in the fuels (Huang et al, 2020) in all tested fuels, as indicated by values of below 3% weight (Table 3). Additionally, the impact of testing conditions does not promote the dissociation of nitrogen molecules into N atoms or facilitate the reaction between oxygen and N atoms to generate NO x emissions.…”

Section: Emission Characteristicsmentioning

confidence: 94%

Biomass pyrolysis oil/diesel blends for a small agricultural engine

Mankeed,

Homdoung,

Wongsiriamnuay

et al. 2023

Energy Exploration & Exploitation

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The present study reports on an investigation of teak sawdust pyrolysis oil blended with commercial diesel in a small four-stroke compression ignited engine. The engine performance and emissions were evaluated. The teak sawdust pyrolysis oil was obtained from a single-stage fixed bed pyrolysis reactor at 600 °C. Its physicochemical properties were characterized and found to be acceptable for the engine. Teak sawdust pyrolysis oil blends with diesel at the ratios of 10%, 25%, and 50% by mass were utilized. The small engine was tested at constant speeds from 800 to 2600 r/min. 25% teak sawdust pyrolysis oil blend at 2000 r/min was found to have better brake thermal efficiency with lower brake-specific fuel consumption compared to the other teak sawdust pyrolysis oil blends. Meanwhile, the highest engine load was obtained at 50% teak sawdust pyrolysis oil blend and 2600 r/min to be 8 kW. Furthermore, the emissions of CO, CO2, and hydrocarbon at 50% teak sawdust pyrolysis oil and 2000 r/min were slightly lower than other teak sawdust pyrolysis oil blends, no NOx detection in tested fuels, moreover, at 2600 speed, the smoke opacities of the fuels show lower than those the others. It was noted that a blend of 25% teak sawdust pyrolysis oil with diesel was suitable for the small engine (at 2000 r/min) in terms of performance and CO, CO2, and NOX emission for sustainability in agriculture and rural areas.

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Investigation on fuel properties and engine performance of the extraction phase liquid of bio-oil/biodiesel blends

Cited by 18 publications

References 42 publications

Progress in utilisation of waste cooking oil for sustainable biodiesel and biojet fuel production

Progress in utilisation of waste cooking oil for sustainable biodiesel and biojet fuel production

Bio-oil Upgrading via Ether Extraction, Looped-Oxide Catalytic Deoxygenation, and Mild Electrocatalytic Hydrogenation Techniques

Biomass pyrolysis oil/diesel blends for a small agricultural engine

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