César Ramírez Márquez

César Ramírez Márquez
Universidad Michoacana de San Nicolás de Hidalgo | UMSNH · Faculty of Chemical Engineering

Doctor of Engineering

About

65
Publications
3,769
Reads
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455
Citations
Citations since 2017
52 Research Items
432 Citations
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
Education
December 2015 - November 2019
Universidad de Guanajuato
Field of study
  • Process optimization

Publications

Publications (65)
Article
Today, one of the main lines of solar energy development is the creation of environmentally friendly, waste-free and inexpensive solar grade silicon production technologies. Presently, the main solar grade silicon production technologies are based on the reduction of silicon hydrogen chloride compounds (trichlorosilane, tetrachlorosilane and silane...
Article
Sustainable process design problems are multi-faceted approaches that pose challenges in terms of the evaluation of indicators to optimize inherent safety, economics, and control. In recent years, chemical engineering has taken advantage of recent advances in process systems engineering more notably considering intensification to generate green and...
Article
Green chemistry and green engineering, projected in the concept of sustainability, provide inherently safe processes. These safety aspects can be determined indirectly through process controllability and flexibility. Although several indexes have been proposed to measure these parameters, the flexibility index and controllability measured by the co...
Article
Full-text available
Assessing the security of the water-energy-food nexus is a topic of great importance, which allows determining the situation of each resource to implement actions for sustainable management of these resources in today's society. For this reason, a systematic procedure is proposed to evaluate the synergies of the water-energy-food nexus in a large r...
Article
The present work aims to obtain an optimal design of a multi-product solar grade silicon refinery under a systematic approach, considering different equity schemes and always seeking to maximize the profit of the facility. The proposed refinery is intensified to satisfy the demands with the use of minimum resources. Our motivation is to include a f...
Article
Prickly pear (Opuntia streptacantha) peel is a potential source of biocompounds, such as flavonoids, anthocyanins, betacyanins, and betalains. To obtain its biocompounds, two consecutive processes are commonly used: drying and extraction. Nevertheless, these conventional processes often lack the principles of sustainability and circular economy. Th...
Chapter
Hemicellulose is an important fraction of biomass, which can be used to produce different biochemicals. In this chapter is addressed the production of furfural, which is one of the most important biochemicals produced from hemicellulose fraction. According to US National Renewable Energy Laboratory (NREL), Furfural is one of the most important comp...
Chapter
Methyl ethyl ketone (MEK) is a highly versatile compound with diverse industrial applications. Currently, the demand for this compound is increasing due to its application in various applications. Recently, its potential application as a fuel has been pointed out. In this chapter, the role of process intensification in the production of MEK in two...
Chapter
Currently, the design, simulation, control, and optimization of biochemical systems and processes is receiving a great amount of attention due to the recent availability of experimental data of biochemical processes within this field. That is why the development of numerous tools for the design, simulation, control, and optimization of biochemical...
Chapter
This chapter addresses the production of ethyl levulinate (EL), which is one of the most important derivatives of levulinic acid, owing to its potential to be used as a fuel additive and precursor of several high-value chemicals. In this sense, different general features and data of this compound such as current producers, markets, growth prospects...
Chapter
Cellulose is the main component of biomass and the most plentiful worldwide renewable raw material. For this reason, cellulose is considered as an attractive source to produce green chemicals and materials. This chapter addresses the production of levulinic acid (LA), which is considered by several researchers, as one of the most promising chemical...
Chapter
Butanol is an organic compound that is used in various industries, mainly as a solvent. The growing need to reduce climate effects by the use of compounds of fossil origin, has increased the research of this compound oriented toward its use as a biofuel. In this chapter, the main characteristics of butanol as a chemical compound will be discussed i...
Chapter
2,3-Butanediol (2,3-BD) is a very interesting compound with multiple applications. Due to the presence of several stereoisomers, the industrial development of this compound has not been studied so thoroughly. However, it can be considered as a platform compound that can be the beginning of several compounds of great added value. In this chapter, we...
Chapter
Around the world, significant steps are being taken to move from today’s fossil-based economy to a more sustainable economy based on biomass. The transition to a bio-based economy has multiple drivers: (a) the need to develop an environmentally, economically, and socially sustainable global economy; (b) the anticipation that oil, gas, coal, and oth...
Chapter
Facing numerous challenges such as minimizing energy and waste generation or improving economic as well as environmental metrics, the chemical industry constantly seeks new solutions to fulfill ever-evolving demands. Process intensification (PI) has received significant attention, due to its potential to realize innovative and more sustainable proc...
Chapter
In this chapter, the reader will find the motivation behind the production of bioethanol, in an intensification approach process and sustainability concepts. Bioethanol is a chemical product obtained from the fermentation of sugars found in plant-based products. When mixed with gasoline, bioethanol produces a high-energy biofuel with characteristic...
Chapter
The development of biomass-based (“bio-based”) chemicals and materials has really taken off over the past decade. Technology has been developed and upscaled from lab scale to demo scale, and for some chemicals the technology has been sufficiently developed to enable commercial production. Current production is often just a fraction of the petrochem...
Chapter
Lactic acid is a well-established biobased chemical, which can be produced using renewable resources from various wild-type strains. Lactic acid can be used in a wide variety of industries, including the food industry, the pharmaceutical industry, the chemical industry, the cosmetic industry and more recently, the medical industry. One way to produ...
Chapter
This chapter evaluates the synthesis of polysilicon and the development of photovoltaic panels for the production of electricity from solar energy. The process from quartz to solar grade silicon is analyzed unit by units presenting the mechanism and its kinetics as well as the units themselves. Next, the solar cells are analyzed and their efficienc...
Chapter
Butanol is a compound of high interest today since it has different uses and one of the most attractive is as a biofuel. Currently, it is produced by the petrochemical route, but it can also be produced through acetone-butanol-ethanol (ABE) fermentation. Unfortunately, this process is inefficient due to two major problems, obtaining highly diluted...
Chapter
Solar cell manufacturing is based on solar grade silicon which can be obtained using Silane as precursor instead of Trichlorosilane in the well-known Siemen’s process. The silane production can be done in a reactive distillation (RD) column in which reaction and separation take place simultaneously. The typical RD column has one reactive section, b...
Book
Improvements in Bio-Based Building Blocks Production Through Process Intensification and Sustainability Concepts discusses new information on the production and cost of bio-based building blocks. From a technical point-of-view, almost all industrial materials made from fossil resources can be substituted using bio-based counterparts. However, the c...
Chapter
The need to use clean sources for producing electricity has been a great topic of discussion in recent years. Many countries have begun to take advantage of solar energy through the production of solar panels for electric power generation. In addition, knowing people's preferences allows predicting their behavior to propose better planning at macro...
Chapter
Sustainable and green industrial chemical processes enhance the profitability, production of merchandises, inherent safety, and minimize the generation of waste. Among them, profitability, and especially inherent safety, can be characterized indirectly through the controllability and flexibility of the processes. Although several indices have been...
Article
The need to use clean sources for producing electricity has been a great topic of discussion in recent years. Many countries have begun to take advantage of solar energy through the production of solar panels for electric power generation. In addition, knowing people's preferences allows predicting their behavior to propose better planning at macro...
Article
Furfural is one of those promising chemicals obtained from biomass that is able to compete with petrochemicals. The purification of furfural is one the most critical stages during its production process, due to it requires a great amount of energy. In this sense, liquid-liquid extraction is one of the most promising alternatives. However, the main...
Chapter
Several routes for the production of renewable energy have been proposed. From the alternatives, it is possible to highlight four categories: (i) integration of solar and wind power to produce fuels and chemicals; (ii) biomass conversion; (iii) a polygeneration process which can produce simultaneously transportation fuels, energy, and high value ad...
Article
For sustainable production and consumption, emerging green technologies need to be optimized toward a minimal environmental impact, a maximal economic impact and a dynamic behavior. This need for an environmentally sustainable production and consumption is now considered one of the principal sustainable development goals. To enable a more sustainab...
Article
A hybrid polycrystalline silicon production route is optimized following a two-step procedure. First, surrogate models for the main units are developed following different techniques which depend on the available information. Secondly, the optimization of the entire process flowsheet allows determining the optimal tradeoff between yield and energy...
Article
The silicon industry is a source of various types of products, including materials for the implementation of renewable energy systems, with a comparatively lower environmental impact than conventional fossil energy sources and high added value by-products. In this context, the exploitation of the different by-products generated in the production of...
Article
Solar energy has become one of the most developed renewable energy sources in recent years. As with any energy source or product, there are health risks associated with the manufacturing of solar cells. And even though the photovoltaic industry uses far lesser amounts of toxic and flammable substances than many other industries, the use of hazardou...
Article
This paper presents a new optimization approach for the simultaneous structural optimization of process flowsheets with the operating conditions through combining process simulators with metaheuristic techniques. The proposed approach allows optimization of a superstructure in process simulators and reduce the computation time. A superstructure for...
Article
Current policies lead the design of chemical processes towards a sustainability environment. In the downstream process research, the Dividing Wall Columns are well-known for their capabilities of saving energy. Those policies demand continuous improvement. Many authors highlight metrics to define a sustainable process, the energetic saving, greenho...
Chapter
The silicon industry is a source of different types of products, including materials for the implementation of renewable energy systems, with a comparatively lower environmental impact than conventional fossil energy sources, and high added value byproducts. In this context, the exploitation of the different by-products generated in the production...
Article
This work addresses two key issues in the design of control systems based on PI lineal controllers for intensified reactive distillation configurations to produce diphenyl carbonate: (i) the practical controllability of the process that inherently leads to the setting of control configurations, and (ii) the tuning of corresponding PI controllers in...
Article
In this work, we present the multiobjective optimization of the Siemens Process, the Intensified FBR Union Carbide Process and the Hybrid Process (the three processes to obtain solar grade silicon), including considerations of safety, economic and environmental impact in the design stage of the process. Safety is involved through the individual ris...
Article
Inherent safety and control properties for a reactive distillation column for the production of tetraethoxysilane is compared to those of conventional process based in reactor / distillation column. The preliminary design of reactive distillation column and the analysis of total annual cost and environmental indicator were obtained previously [Sánc...
Article
This work shows a comparative assessment of open-loop and closed-loop processes to select, among a set of alternatives, the best distillation scheme regarding its controllability. A new point of view to assess the controllability using the information from the singular value decomposition (SVD) technique is proposed. In the research, the techniques...
Article
2,3-Butanediol is a promising chemical due to its several applications. Nowadays, 2,3-Butanediol is produced by a chemical process. However, it is also produced by microbial production. Several metabolic strategies attempt to enhance the production of 2,3-Butanediol; yet, the recovery of 2,3-Butanediol from the fermentation broth is yet a challenge...
Article
Separation and dehydration process is a key step to reduce the total production cost of lignocellulosic bioethanol. In the earlier work (Torres-Ortega and Rong, 2016), we have obtained new intensified systems for lignocellulosic bioethanol separation and dehydration through dividing wall columns, which have considerable reduction to both capital an...
Article
Alkoxysilanes, are silicon compounds containing a Si-OR bond. The applications of tetraalkoxysilanes cover a wide range depending if the Si-OR bond remains intact or is hydrolyzed. Currently, tetraethoxysilane (TEOS) is the most prominent derivative of such silicon compound family. The best known and used method of synthesis of TEOS is the esterifi...
Chapter
In this work we have developed and analyzed two alternative Si(SG) production processes using a stochastic optimization scheme within ASPEN PLUS. The first one is an intensified Fluidized Bed Reactor (FBR) process using a reactive distillation column. The second process is a hybrid process combining both the Siemens and the conventional FBR process...
Chapter
Full-text available
In this work is presented the simultaneous design and optimization of three alternatives of azeotropic distillation processes to purify Furfural by the mathematical technique called Differential Evolution with Tabu List (DETL), having as objective functions economic, environmental and safety criteria to the processes were evaluated. The schemes her...
Article
Solar grade silicon (SiSG) is typically used in photovoltaic applications, and it is commercially manufactured via the Siemens process. Despite the fact that current levels of demand are satisfied, there may be a shortage of SiSG in the near future. To improve the low yield of the Siemens process, two alternative types of SiSG production processes...
Article
Reactive Distillation is one of the most representative examples of Process Intensification due this technology allows to simplify and to unify the reaction and separation processes in only one equipment, reducing in this way the total cost of the process. However, the RD technology can be improved through energy integration in order to reduce the...
Chapter
The reactive distillation process (RD) has been a focus of special interest in the creation of new processes with lower cost, environmental impact, and risk minimization because RD combines several process units in fewer devices. Nevertheless, the complexity in the design of reactive distillation process increases because of the several design vari...
Chapter
The tuning control problem is crucial in the proper dynamic behaviour of a process, because depending on the controller parameters, the process can exhibit poor control characteristics and even it becomes unstable. So it becomes necessary to tune the controller parameters to achieve good control performance with the proper choice of tuning constant...
Chapter
In recent decades, the production of solar cells, along with the associated technologies has become important research topics in the field of chemical engineering, due to the increasing application of solar energy. The solar cell manufacturing is based on solar grade silicon, which can be obtained by decomposition of silane to trichlorosilane. The...
Article
The use of conventional reactive distillation columns for silane production has the disadvantage of large consumption of refrigerant because the silane is produced in the dome of the column and this must be condensed at about −78 °C. The incorporation of intercondensers may improve the cost and safety of the system; however, a proper study for the...
Article
Polycarbonate has a very extensive commercial application thanks to its multiple physical properties. The environmental problems associated with the conventional process to obtain polycarbonate by the phosgene route has stimulated the research of intensified schemes as is the case of the reactive distillation for the synthesis of Diphenyl Carbonate...
Article
Thermally coupled distillation columns (TCDC) are used to reduce energy requirements on the separation of liquid mixtures, also reducing the environmental impact. The Petlyuk column is one of the TCDC with the highest reductions on heat duty. In this work, the use of distillation trains with Petlyuk columns is proposed to purify a multicomponent hy...
Article
The aviation sector is nowadays looking for a biofuel to partially substitute the fossil fuel used for flights, namely jet fuel. Among the proposed processes for the production of the renewable jet fuel, the hydrotreating process has the better performance to the date. At the final stage of the hydrotreating process, a distillation train is require...
Article
Silane and chlorosilanes are essential materials for manufacturing silicon solar cells, glass microscope slides, oxidation masks, and corrosion-resistant films among other products. Monochlorosilane (SiH3Cl) and dichlorosilane (SiH2Cl2) are produced on a large scale as intermediates in the synthesis of silane (SiH4) by disproportionation of trichlo...
Article
Process intensification emerges as an important tool in the synthesis of multicomponent distillation configurations aimed at the reduction of the energy use and capital costs. Operational and fixed costs savings coupled with simplicity and controllability design configurations appear as an essential characteristic for industrial acceptance of inten...
Article
Solar cell manufacturing is based on solar grade silicon which can be obtained using silane as precursor. Silane is produced by redistribution reactions of trichlorosilane. The aim of the present work is to study the control properties of a multitasking reactive distillation column to produce silane, dichlorosilane and monochlorosilane. Control adj...
Article
BACKGROUND: Butanol produced from fermentation has attracted the interest of research groups because its physicochemical properties show several enhancements over bioethanol. Recent studies have proposed alternative methods to separate and purify biobutanol from a fermentation broth. These alternatives offer energy and economic savings; in addition...
Article
Background Bioethanol is a green fuel considered as a sustainable alternative to petro-derived gasoline. The transport sector higly contributes to carbon dioxide emission and consequently has a negative impact to the air quality and it is responsible to the increase of the greenhouse effect. The availability of enviromental friendly and economic fu...
Article
Ethanol is attracting the attention of researchers because of its potential in reducing the dependence on crude oil together with the possible reduction in the pollution associated with the combustion process. The ethanol dehydration process is significant in terms of its production cost. Recently, new distillation sequences have been proposed for...

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