Production process of di-amyl ether and its use as an additive in the formulation of aviation fuels

Cataluña, Renato; Shah, Zeban; Venturi, Vanessa; Caetano, Nattan Roberto; Silva, Bibiana Porto da; Azevedo, Carla M.N.; Silva, Rosangela da; Suarez, Paulo A. Z.; Oliveira, Lincoln Pinheiro

doi:10.1016/j.fuel.2018.04.167

Cited by 30 publications

(15 citation statements)

References 33 publications

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“…The volume of weight, V, is given by the height h of the cylinder and the diameter d, according to Equation (6). It has been considered that the system uses a cylindrical piston, therefore:…”

Section: System Sizingmentioning

confidence: 99%

“…The increased demand for energy, without increasing CO 2 emissions and exclusive reliance on finite resources, such as fossil fuels, has made necessary the development of advanced renewable energy technologies [3,4]. Many authors have been conducting research to find solutions for the optimal and quality generation, distribution and use of renewable sources [5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Storage Gravitational Energy for Small Scale Industrial and Residential Applications

2019

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Photovoltaic cells produce electric energy in a short interval during a period of low demand and show high levels of intermittency. One of the well-known solutions is to store the energy and convert it into a more stable form, to transform again into electricity during periods of high demand, in which the energy has a higher value. This process provides economic viability for most energy-storage projects, even for the least efficient and most common, such as batteries. Therefore, this paper aims to propose a storage system that operates with gravitational potential energy, considering a small-scale use. The development of this methodology presents the mathematical modeling of the system and compares the main characteristics with other systems. The dimensions of the considered system are 12-m shaft, 5-m piston height, and 4 m of diameter; it presented an energy storage of 11 kWh. Also, it has an efficiency of about 90%, a lifetime of 50 years, and higher storage densities compared to other systems.

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Section: System Sizingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Storage Gravitational Energy for Small Scale Industrial and Residential Applications

2019

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“…These additions assist to identify the suitable sources to approach the ideal ratio during synthesis of zeolites. The synthesized zeolites can be used for the adsorption of carbon dioxide (CO 2 ) to mitigate the environmental impacts caused by greenhouse gas emissions [20][21][22][23][24]. The wide application of zeolites for CO 2 adsorption is enabled due to larger pore cavities compared to the molecular diameter of carbon dioxide [25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Comparative study using different external sources of aluminum on the zeolites synthesis from rice husk ash

Klunk

Das

Dasgupta

et al. 2020

Mater. Res. Express

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Rice husk is considered as a waste in the rice industry but is proficient in manufacturing different materials, such as zeolites, which is produced in large quantities all over the world, for example in Brazil. Zeolite is an adsorbent support material, which can be synthesized from rice husk ash (RHA) with external sources of aluminium (ESA). The scientific community has been conducting several measures to minimize the environmental impacts caused by greenhouse gases. Several mitigation processes are presently investigated, which includes carbon dioxide injections into adsorbent materials (e.g. zeolites). The efficiency of this technology involves a zeolitic material with high crystallinity and high concentrations of SiO 2 and Al 2 O 3 (aluminosilicates). In the present work, zeolites have been synthesized from rice husk ash (SiO 2 source) and external aluminium sources (Al 2 O 3 -alumina, gibbsite and metakaolin) to fulfill that purpose. With the aid of XRF, XRD, SEM/ EDS and FTIR techniques, the zeolitic material was characterized in two distinct crystalline phases: Mordenite and ZSM-5. The synthesis was carried out by the ideal addition of ESA (2.5 g) to RHA. According to the literature, the zeolitic materials formed by the mixture of Mordenite and ZSM-5 can be availed for gas separation and greenhouse gas storage.

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“…According to data from the International Energy Agency, the world demand for energy grows by 56% by 2040 [5][6][7]. Carbon emissions, associated with energy generation and consumption worldwide, are expected to increase by 46% over the next 30 years [8][9][10][11]. In this scenario, there is a growing need for processes that improve efficiency and reduce the emission of air pollutants [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Experimental Assessment of Thermal Radiation Behavior Emitted by Solid Porous Material

Caetano¹,

Lorenzini²,

Lhamby³

et al. 2020

IJHT

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Porous media burners have been the focus of many studies due to the advantage in different applications in industry, which exhibit a directional emission of thermal radiation and low emission of pollutants. Indeed, these characteristics yields benefits regarding productivity by an environment friendly process. Thus, this work analyzes the behavior of radiation heat flux emitted by materials of different linear densities and porosities, varying the rate of air/fuel mixture and the flame power. In this way, was constructed an experimental setup that consists in a supply system of air/fuel, data acquisition, burner support for the radiation sensor, and the radiometer. This structure enables the displacement from 0°C to 90°C allowing the analysis of radiation in the area of a semisphere. The results shown that the silicon carbide has higher radiation efficiency than zirconia, due the higher thermal conductivity and emissivity. However, the silicon carbide degraded in one of the measurements. The ZrO2 media has proved challenging to stabilize for equivalence ratios below 0.6. Regarding the porosity, it is concluded that the higher the porosity, the greater the radiation efficiency, the expected result because there is a larger contact area for the reaction to occur within the pores.

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Production process of di-amyl ether and its use as an additive in the formulation of aviation fuels

Cited by 30 publications

References 33 publications

Storage Gravitational Energy for Small Scale Industrial and Residential Applications

Storage Gravitational Energy for Small Scale Industrial and Residential Applications

Comparative study using different external sources of aluminum on the zeolites synthesis from rice husk ash

Experimental Assessment of Thermal Radiation Behavior Emitted by Solid Porous Material

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