The impact of low to high waste cooking oil-based biodiesel blends on toxic organic pollutant emissions from heavy-duty diesel engines

Cheruiyot, Nicholas Kiprotich; Hou, Wen Che; Wang, Lin‐Chi; Chen, Chia Yang

doi:10.1016/j.chemosphere.2019.06.233

Cited by 21 publications

(3 citation statements)

References 54 publications

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“…Though oxygen was not a combustible matter, it was advantageous for the emission reduction. Due to the assistance of oxygen, the combustion of fir would be more completed, thereby reducing air pollution 32,33 …”

Section: Resultsmentioning

confidence: 99%

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Effects of torrefaction and water washing on the properties and combustion reactivity of various wastes

Chen

Ilham

2020

Int J Energy Res

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On account of increasing waste problems and energy crisis, this study performed waste-to-energy on three kinds of intermediate waste epoxy resins, including the one used for printed circuit board manufacture (WE1), the one from Bisphenol A type epoxy resin (WE2), and the one from purifying process (WE3), using water washing and torrefaction. Biomass and coal were also tested for comparison. The properties, including proximate analysis, elemental analysis, higher heating value (HHV), and combustion characteristics of the feedstocks before/after the pretreatments, were analyzed. Coal and WE3 did not need any pretreatment to be fuel because their HHVs were high already (26.7 and 34.12 MJ/kg, respectively). Torrefaction presented a good modification on fir in that its fixed carbon content increases a lot, resulting in a 42% enhancement in HHV. However, the high thermal resistance of the intermediate waste epoxy resins let them show merely upgrade after torrefaction pretreatment, especially for WE2. After torrefaction, the ash content of it attained 77% that was not suitable as a fuel. On the other hand, water washing displayed good performance on it where its ash content was reduced by over 88% coupled with the 270% increment on HHV. This was attributed to the removal of salt in WE2 during water washing. The TGA/DTG proved that salt inside intermediate waste epoxy resins was diminished after water washing. Furthermore, after water washing, all the combustible contents concentrated at a lower temperature (250 C-500 C) which benefited the real application.

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Section: Resultsmentioning

confidence: 99%

“…Due to the assistance of oxygen, the combustion of fir would be more completed, thereby reducing air pollution. 32,33 3.2 | Water washing…”

Section: Elemental Analysis and Hhvmentioning

confidence: 99%

Effects of torrefaction and water washing on the properties and combustion reactivity of various wastes

Chen

Ilham

2020

Int J Energy Res

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“…The ignition delay for D100 was lower than for B25 and B50 (Figure 9). The ignition delay for D100 was 12.02º, and it was 12.65º for the fuel blends of CNT, pre biodiesel, B25 and B50, which is lower due to a CR of 17.5 [49][50][51][52][53]. Emissions are reduced by maintaining the pressure and temperature, resulting in the stable operation of the engine.…”

Section: Ignition Delaymentioning

confidence: 99%

Economic Considerations on Nutrient Utilization in Wastewater Management

Maroušek

Maroušková

2021

Energies

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There is wide consensus that Spirulina can serve as a tool for wastewater management and simultaneously provide feedstock for biorefining. However, the economic aspects associated with its use remain a significant challenge. Spirulina cultivated in wastewater decreased the concentrations of both ammonia and nitrate and also served as a biodiesel source. The oil obtained in the feedstock was subjected to transesterification and turned into biodiesel. The biodiesel was subsequently analyzed in a test motor (water-cooled, four-stroke, single-cylinder compression ignition with injection). The tests were conducted at a constant 1500 rpm, and the output power was 3.7 kW. Mixtures of diesel and biodiesel were also enriched with carbon nanotubes (CNTs). The amount of CNTs added to the diesel was 30 mg L−1. The algae and de-oiled biomass were characterized using XRD analysis, and an ultrasonicator was used to mix the CNTs with diesel and spirulina blends. A series of tests were conducted at different load conditions (25%, 50%, 75%, and 100%) for all fuel blends. Test results were compared with a neat diesel engine with a CR of 17.5:1. Among the fuel blends, the B25 reported improved brake thermal efficiency and reduced emissions. The outcomes are a reduction in thermal efficiency of 0.98% and exhaust gas temperature of 1.7%. The addition of Spirulina biodiesel blends had a positive impact on the reduction of greenhouse gas emissions, including reductions of 16.3%, 3.6%, 6.8%, and 12.35% of CO, NOx, and smoke, respectively. The specific fuel consumption and CO2 emissions were reduced by 5.2% and 2.8%, respectively, for B25 fuel blends compared to plain diesel and B50. Concerning cost competitiveness, vigorous research on microalgae for the production of biodiesel can cut production costs in the future.

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Recent Updates of Biodiesel Production: Source, Production Methods, and Metagenomic Approach

Singh

2021

Bioenergy Research: Revisiting Latest Development

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The impact of low to high waste cooking oil-based biodiesel blends on toxic organic pollutant emissions from heavy-duty diesel engines

Cited by 21 publications

References 54 publications

Effects of torrefaction and water washing on the properties and combustion reactivity of various wastes

Effects of torrefaction and water washing on the properties and combustion reactivity of various wastes

Economic Considerations on Nutrient Utilization in Wastewater Management

Recent Updates of Biodiesel Production: Source, Production Methods, and Metagenomic Approach

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