Moises Teles

Moises Teles
University of São Paulo | USP · Departamento de Engenharia Química (PQI) (POLI)

About

47
Publications
6,943
Reads
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287
Citations
Citations since 2016
27 Research Items
239 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050

Publications

Publications (47)
Poster
BL gasification for chemicals/fuels production proves to be useful in reducing the exergy consumed and net CO2 emissions, whereas maintaining attractive the revenues of the integrated plant. The best alternatives of utility systems maximize the recovery of the available waste heat exergy. The exergy efficiencies of the conventional and integrated c...
Chapter
In this chapter, a brief overview of the theoretical background, commercial process, modeling methods, and optimization opportunities for methane production are presented and discussed. Today, there are two main routes for methane production, methanation and anaerobic digestion, each one having its own technical particularities. The numerical model...
Conference Paper
The pursuit of alternative energy sources for the nitrogen fertilizers sector has recently earned renewed interest due to increasing concerns regarding the world dependence on non-renewable energy resources and also motivated by the more stringent environmental regulations. The decarbonization of this sector, responsible for 2% of the global energy...
Conference Paper
BioLPG is a partially renewable fuel that can be produced through different conversion routes, such as the hydrotreatment of vegetable oils (HVO) process. This study evaluates the environmental impacts associated with the HVO bioLPG using the Life Cycle Assessment (LCA) technique. The analysis was performed for processing conditions practiced in Br...
Presentation
Complex industrial processes are often modelled using flow-sheeting software, wherein any change in inputs may require significant computation time. For studying the integration of complex processes into industrial clusters and explore synergies among them, computationally inexpensive surrogate models proved to be a smart solution. This study devel...
Conference Paper
Complex industrial processes are often modelled using flow-sheeting software, wherein any change in inputs may require significant computation time. For studying the integration of complex processes into industrial clusters and explore synergies among them, computationally inexpensive surrogate models proved to be a smart solution. This study devel...
Presentation
In this work, the conventional scenario of the black liquor (BL) concentration and combustion is compared with the BL upgrading gasification process for ammonia production. The chemical processes synthesis, modeling and simulation are performed by using Aspen Plus® software. The determination of the heat recovery and the solution of the energy inte...
Conference Paper
In this work, the conventional scenario of the black liquor (BL) concentration and combustion is compared with the BL upgrading gasification process for ammonia production. The chemical processes synthesis, modeling and simulation are performed by using Aspen Plus® software. The determination of the heat recovery and the solution of the energy inte...
Article
Full-text available
The conventional configuration of a pulp mill, in which black liquor is concentrated and burnt, is compared with the upgrading gasification routes for methanol (MeOH) or dimethyl ether (DME) co-production. To this end, various exergy-based and environmental impact indicators are assessed in the light of different utility supply scenarios. The combi...
Article
Stochastic reasoning must be part of the comprehension of chemical and physical processes that occur in Nature. Stochastic phenomena can be found in several natural observations and in numerous Chemical Engineering related issues, such as optimization, process control, molecular diffusion, and chemical reaction kinetics. In the present work, an Act...
Conference Paper
The conventional application of a pulp and paper mill, in which black liquor is typically concentrated and burnt, is compared with the upgrading gasification route for methanol (MeOH) and dimethyl ether (DME) co-production. This comparison is made in terms of exergy efficiency and environmental impact indicators, under different utilities supply sc...
Article
Full-text available
The black liquor is a byproduct of the kraft pulping process that contains more than half of the exergy content in the total woody biomass fed to the digester, representing a key supply of renewable energy to the pulping process. In this work, the conventional scenario of the black liquor use (i.e., concentration and combustion) is compared with th...
Chapter
The conventional application of a pulp and paper mill, in which black liquor is typically concentrated and burnt, is compared with the upgrading gasification route for methanol (MeOH) and dimethyl ether (DME) co-production. This comparison is made in terms of exergy efficiency and environmental impact indicators, under different utilities supply sc...
Article
Forest systems represent an important source of biomass for biorefineries. However, very complex dynamics impose difficulties in its efficient design. The present work proposes an optimization framework for biorefineries design that considers these dynamics. Four interconnected decision layers were considered: biomass supply, conversion processes,...
Poster
Black liquor gasification for ammonia production proves to be useful in reducing the exergy consumed and net CO2 emissions, whereas maintaining attractive the revenues of the integrated plant. The best alternatives of utility systems maximize the recovery of the available waste heat exergy. The exergy efficiencies of the conventional and integrated...
Article
A reflection on teaching programming at undergraduate level using advanced tools is presented. Advanced digital tools and computational evolution have shaped different areas, such as industrial process, communications, education and innovation. New technologies, such as the Internet of Things-IoT, cloud computing and artificial intelligence, have b...
Article
Full-text available
The Amazon region has richness of oleaginous plants that have attracted attention due to its unique properties. Integrating local communities in an economic chain of valorization of fats/oils can enhance the social dimension of local oleaginous industry sustainability. Given the large diversity of raw materials and the possibility to mix them in di...
Presentation
Full-text available
The objective of this work is to assess the thermoeconomics of three biomass upgrading processes. The production processes under scrutiny are those for wood pellets, torrefied wood pellets and pyrolysis slurry (a mixture of pyrolysis char and oil). By process simulation, all processes were integrated with a communal combined heat and power plant. T...
Article
In order to evaluate thermal properties of fats and oils for product design, palm stearin, canola oil and fully hydrogenated soybean oil blends were studied. The fatty acids composition (by gas chromatography), the regiospecific distribution of saturated, monounsaturated and polyunsaturated fatty acids (by Nuclear Magnetic Resonance), the softening...
Article
We investigate the use of computer aided molecular design (CAMD) approach for enhancing the properties of existing molecules by modifying their chemical structure to match target property values. The activity of tailoring molecules requires to aggregate knowledge disseminated across the whole chemical enterprise hierarchy, from the manager level to...
Chapter
This work deals with Product Design by means of theoretical predictions of the Solid Fat Content of different formulations using 3 vegetable oils. A Soli-Liquid Equilibrium (SLE) model was implemented and integrated into an optimization algorithm based on the Generalized Reduced Gradient method. A total of 3,696 SLE problems are solved, covering 57...
Article
Full-text available
A computer aided product design (CAPD) tool is proposed that finds mixtures matching target properties. Genetic algorithm crossover and mutation operators are completed with insertion or deletion operators adapted for side branches. A new substitution operator is devised for cyclic molecules. The mixture fitness is evaluated by a weighted sum of pr...
Article
Despite the greater attention given to biofuels application in the literature, there are many economic and environmental drivers to use vegetables oils (VOs) as a renewable feedstock for other applications. These drivers are discussed in the present work and the technological challenges imposed by this shift towards new VOs uses are also discussed....
Article
Full-text available
The Solid Fat Content (SFC) of vegetable oils is a fundamental property in fatty foods. Also, chemical interesterification (the exchange of fatty acids within and between triacylglycerols) has been used to enhance the melting profile of vegetable oils blends used in food industry. The present work uses a computational approach using Solid–Liquid Eq...
Article
A Solid–Liquid Equilibrium model coupled with an algorithm for direct minimization of the Gibbs free energy function was used to compute the melting profiles for binary blends of vegetable oils. The effect of interesterification on the Solid Fat Content (SFC) is simulated by using a completely random distribution of fatty acids on the glycerol stru...
Article
Computer-Aided Mixture Design using an evolutionary genetic algorithm was used to find substitutes to blanket wash solvent in lithographic printing process. Both molecular structure and composition of each molecule were run together as decision variables in order to find binary aqueous mixtures able to dissolve a phenolic resin. Bio-sourced molecul...
Article
We compare experimental and predicted differential scanning calorimetry (DSC) curves for palm oil (PO), peanut oil (PeO) and grapeseed oil (GO). The predicted curves are computed from the solid–liquid equilibrium modelling and direct minimization of the Gibbs free energy. For PO, the lower the scan rate, the better the agreement. The temperature tr...
Article
Full-text available
Solid-liquid phase equilibrium modeling of triacylglycerols mixtures is essential for lipids design. Considering the α polymorphism and liquid phase as ideal, the Margules 2-suffix excess Gibbs energy model with predictive binary parameter correlations describes the non ideal β and β’ solid polymorphs. Solving by direct optimization of the Gibbs fr...
Article
The aim of this work is use phase equilibrium modeling as an auxiliary tool for product design, especially for those whose desired final properties are directly related to solid fat content (SFC) and melting behaviour. Solid-liquid equilibrium (SLE) modeling has been implemented for triacylglycerols mixtures, the main components of vegetable oils,...
Article
It becomes necessary the standardization of environmental sustainability indicators for energy conversion systems as well as the measurement of the impact of their emissions on the environment. The exergy concept has been evaluated as a useful tool for this purpose. It is based on thermodynamic criteria and reveals the transformation capacity of a...
Article
Computer-Aided Mixture Design for product development can take advantage from equilibrium modelling. Systems composed by triacylglycerols (TAG) mixtures are widely used for many applications (foods, cosmetics, pharmaceutical and lubricants) and their end-use properties are very close related to phase behaviour (melting and crystallization). Such mo...
Article
Full-text available
Important end-use properties of vegetable oils based edible products are strong related to the equilibrium between a solid crystalline network and a liquid phase. This work presents the available literature development of solid-liquid equilibrium in triacylglycerol systems and highlights how it can be coupled with a Computer-Aided Mixture and Blend...
Article
The use of available vegetable oils natural resources for producing improved molecules/mixtures is a promising area in tailor-made lipids. For this, it is necessary a multi-scale modelling of different properties, taking into account the relations between molecular structure and desired properties. This modelling by predictive methods can be couple...
Article
Issues de ressources renouvelables, les huiles végétales (mélanges de triacylglycérols) sont des matières premières aux multiples applications dans divers secteurs, tels que l’industrie alimentaire, les lubrifiants, les solvants, les cosmétiques, la pharmacie, parmi autres. Pour faciliter le développement de produits utilisant de telles matières pr...

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