Optimization and Recovery of a Pressure Swing Adsorption Process for the Purification and Production of Bioethanol

Núñez, Adolfo; Rumbo‐Morales, Jesse Y.; Villalobos, Alexis U. Salas; Cruz-Soto, Javier de la; Torres, Gerardo Ortiz; Cerda, Julio César Rodríguez; Calixto-Rodríguez, M.; Mendoza, Jorge A. Brizuela; Molina, Yehoshua Aguilar; Zatarain-Durán, Omar Alí; Vidal, Alan Francisco Pérez

doi:10.3390/fermentation8070293

Cited by 11 publications

(5 citation statements)

References 38 publications

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“…In the field of powering compression-ignition engines, work is currently being carried out to obtain and use the following alternative fuels derived primarily from biomass: fatty acid esters (FAME and FAEE, from transesterification processes of rapeseed, sunflower, and soybean oils), dimethyl ether, fuel emulsions (water, pure vegetable oils, and hydrocarbon synthetic fuels), and fatty acid esters (FAME and FAEE). Fermentation and distillation are the two basic processes involved in the manufacturing of ethanol [61]. Using this method to produce fuel results in high overall production costs.…”

Section: Introductionmentioning

confidence: 99%

Compression Ignition Internal Combustion Engine’s Energy Parameter Research Using Variable (HVO) Biodiesel and Biobutanol Fuel Blends

Valeika,

Matijošius,

Orynycz

et al. 2024

Energies

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This study investigates the impact of different biofuels, such as pure hydrogenated vegetable oil, hydrogenated vegetable oil, and biobutanol, as well as their blends, on the non-energetic operational characteristics of a compression ignition internal combustion engine. The research investigations were conducted using a turbocharged direct injection compression ignition engine that was put within a Skoda Octavia 1.9 TDI automobile. Throughout the investigation, the primary emphasis was placed on analyzing energy characteristics such as power, brake-specific fuel consumption (BSFC), brake thermal efficiency (BTE), and other related factors. The analysis involved the utilization of multiple combinations of bio-based fuels, namely four mixes of HVO with biobutanol (HVO100, HVOB5, HVOB10, and HVOB20), which were subsequently compared to fossil diesel (D100). The findings of the study indicate that the utilization of HVO100 fuel results in notable reductions in power output and mass fraction when compared to D100 gasoline. HVO100 fuel demonstrates superior performance to D100 gasoline, exhibiting a range of 1.7% to 28% improvement in brake-specific fuel consumption. Additionally, at an engine speed of 4500 rpm, the use of HVO100 fuel leads to a decrease in brake thermal efficiency of 4.4%.

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Section: Introductionmentioning

confidence: 99%

Compression Ignition Internal Combustion Engine’s Energy Parameter Research Using Variable (HVO) Biodiesel and Biobutanol Fuel Blends

Valeika,

Matijošius,

Orynycz

et al. 2024

Energies

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“…As we navigate the challenges of climate change, fostering energy efficiency remains a vital imperative for achieving a low-carbon and environmentally responsible global economy [2]. At the same time, broader efforts to reduce greenhouse gas emissions in the pursuit of a sustainable future hold promise for reducing the carbon footprint associated with transportation fuels [3,4]. In expanding our understanding of sustainable energies with a global impact, it is crucial to delve into various sources that highlight the diverse forms of sustainable energy.…”

Section: Introductionmentioning

confidence: 99%

Energy Labels and Consumer Attitudes: A Study among University Staff

Durmus Senyapar,

Duzgun,

Boran

2024

Sustainability

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This study investigates energy label awareness among Gazi University staff, exploring the influence of demographic factors on attitudes and perceptions. Using the Theory of Planned Behavior (TPB), the research examines individual attitudes, subjective norms, and perceived behavioral control in shaping energy efficiency awareness. A cross-sectional survey of academic and administrative staff reveals significant differences in awareness across demographic groups. Gender-specific variations in attitudes towards energy-efficient products are evident, with the greatest difference observed between female (M = 3.93, SD = 1.16) and male staff (M = 3.58, SD = 1.30) on Capacity (I-11) (Z = −2.805, p = 0.005 < 0.05). Education level also significantly influences awareness scores, particularly on the status symbol item (I-18) (χ2 = 24.543, p = 0.00 < 0.05). These findings, analyzed through Wilcoxon Rank Sum and Kruskal–Wallis Tests, provide nuanced insights into the demographic factors impacting energy label awareness. Interpretation of the findings on the complex relationship between demographic characteristics and energy label awareness with TPB provided valuable insights. The practical implications of the study highlight the imperative for tailored communication strategies and targeted interventions to raise awareness among different staff groups. By addressing these nuanced factors, the study significantly contributes to the development of effective energy policies, fostering a sustainable and energy-conscious academic community.

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“…Alternative fuels attracting a lot of attention include alcohols (ethanol, methanol and butanol) [10][11][12]. This is associated with a number of advantages presented by these liquids, such as high oxygen content and low viscosity.…”

Section: Introductionmentioning

confidence: 99%

Visualisation Testing of the Vertex Angle of the Spray Formed by Injected Diesel–Ethanol Fuel Blends

Krzemiński,

Ustrzycki

2024

Energies

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The internal combustion engine continues to be the main source of power in various modes of transport and industrial machines. This is due to its numerous advantages, such as easy adaptability, high efficiency, reliability and low fuel consumption. Despite these beneficial qualities of internal combustion engines, growing concerns are related to their negative environmental impacts. As a result, environmental protection has become a major factor determining advancements in the automotive industry in recent years, with the search for alternative fuels being one of the priorities in research and development activities. Among these, fuels of plant origin, mainly alcohols, are attracting a lot of attention due to their high oxygen content (around 35%). These fuels differ from diesel oil, for instance, in kinematic viscosity and density, which can affect the formation of the fuel spray and, consequently, the proper functioning of the compression–ignition engine, as well as the performance and purity of the exhaust gases emitted into the environment. The process of spray formation in direct injection compression–ignition engines is extremely complicated and requires detailed analysis of the fast-changing variables. This explains the need for using complicated research equipment enabling visualisation tests and making it possible to gain a more accurate understanding of the processes that take place. The present article aims to present the methodology for alternative fuel visualisation tests. To achieve this purpose, sprays formed by diesel–ethanol blends were recorded. A visualisation chamber and a high-speed camera were used for this purpose. The acquired video provided the material for the analysis of the changes in the vertex angle of the spray formed by the fuel blends. The test was carried out under reproducible conditions in line with the test methodology. The shape of the fuel spray is impacted by an increase in the proportional content of ethanol in the diesel and dodecanol blend. Based on the present findings, it is possible to note that the values of the vertex angle in the spray produced by the diesel–ethanol blend with the addition of dodecanol are most similar to those produced by diesel oil at an injection pressure of 100 MPa. The proposed methodology enables an analysis of the injection process based on the spray macrostructure parameters, and it can be applied in the testing of alternative fuels.

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Optimization and Recovery of a Pressure Swing Adsorption Process for the Purification and Production of Bioethanol

Cited by 11 publications

References 38 publications

Compression Ignition Internal Combustion Engine’s Energy Parameter Research Using Variable (HVO) Biodiesel and Biobutanol Fuel Blends

Compression Ignition Internal Combustion Engine’s Energy Parameter Research Using Variable (HVO) Biodiesel and Biobutanol Fuel Blends

Energy Labels and Consumer Attitudes: A Study among University Staff

Visualisation Testing of the Vertex Angle of the Spray Formed by Injected Diesel–Ethanol Fuel Blends

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