Publications by Adriano Viana Ensinas

A Holistic Methodology for Optimizing Industrial Resource Efficiency

François Maréchal, Maziar Kermani, Adriano Viana Ensinas, Anna Sophia Wallerand, Ivan Daniel Kantor, Julia Granacher

Efficient consumption of energy and material resources, including water, is the primary focus for process industries to reduce their environmental impact. The Conference of Parties in Paris (COP21) highlighted the prominent role of industrial energy effici ...

2019

Next generation cogeneration system for industry - Combined heat and fuel plant using biomass resources

François Maréchal, Adriano Viana Ensinas, Ayse Dilan Celebi

The requirement for sustainable development has prompted the researchers to explore solutions for better utilization of renewable energy resources in the future. Biomass is a promising resource and it can be converted to multiple products and services incl ...

Elsevier2019

Review of design works for the conversion of sugarcane to first and second-generation ethanol and electricity

François Maréchal, Adriano Viana Ensinas, Rami Bechara, Jean-Marc Schweitzer

The conversion of sugarcane, the world's largest crop, to energy vectors, namely first and second-generation ethanol and electricity, is an ongoing scientific endeavor. This conversion makes use of complex processes with numerous unit operations and proces ...

2018

Comparison of extraction techniques for product diversification in a supercritical water gasification-based sugarcane-wet microalgae biorefinery: Thermoeconomic and environmental analysis

François Maréchal, Adriano Viana Ensinas

This study presents a thermoeconomic and environmental assessment of the extraction of lipids and proteins from wet microalgal biomass in a 3G biorefinery by two different technologies: supercritical fluid extraction (SFE) and low-pressure solvent extracti ...

ELSEVIER SCI LTD2018

Reduction of process steam demand and water-usage through heat integration in sugar and ethanol production from sugarcane - Evaluation of different plant configurations

Adriano Viana Ensinas

The sugarcane industry represents one of the most important economic activities in Brazil producing sugar and ethanol for the internal and external markets. There are also plants dedicated only to ethanol production. The aim of this study is to accomplish ...

2017

Product diversification in the sugarcane biorefinery through algae growth and supercritical CO 2 extraction: Thermal and economic analysis

François Maréchal, Adriano Viana Ensinas

The sugarcane sector in Brazil has undergone a major modernization in the last thirty years. Embracing the biorefinery concept, this sector is investigating bioproduct diversification and mostly putting a lot of effort and investment on second generation e ...

Pergamon-Elsevier Science Ltd2017

Techno-Economic and Environmental Optimization of Palm-based Biorefineries in the Brazilian Context, 27th European Symposium on Computer Aided Process Engineering

François Maréchal, Maziar Kermani, Adriano Viana Ensinas, Anna Sophia Wallerand, Ayse Dilan Celebi, Ivan Daniel Kantor

Due to the global increase in energy consumption, greenhouse gas emissions, and the depletion of fossil energy resources, the research presented here is focused on finding economically and environmentally competitive renewable energy resources. Fuel produc ...

Elsevier Science2017

Multi-objective optimization of a sugarcane biorefinery for integrated ethanol and methanol production

François Maréchal, Emanuela Peduzzi, Adriano Viana Ensinas, Priscilla Caliandro, Sandro Onorati

The present study evaluates a sugarcane biorefinery producing ethanol through juice fermentation and methanol via gasification of sugarcane lignocellulosic residues and liquid fuel synthesis. Two technologies of gasification named entrained flow and circul ...

2017

Multi-objective optimization of utility systems and heat exchanger networks: method and application to the solar assisted hydrothermal gasification case

François Maréchal, Alberto Mian, Adriano Viana Ensinas, Emanuele Martelli

This work presents a novel framework for the multi-objective synthesis of utility systems and Heat Exchanger Networks (HEN) under single or multi-period operations. In order to solve the resulting Mixed Integer Non Linear (MINLP) programming problem, a bi- ...

Elsevier Science Bv2017

Thermo-economic and environmental comparison of supercritical water and enzymatic hydrolysis of sugarcane bagasse in a biorefinery concept

François Maréchal, Adriano Viana Ensinas

In this study, we discuss the difference regarding thermo-economic and environmental (water intake) aspects between two methods of biomass hydrolysis. A thermo-economic model was developed using Aspen Plus® and MATLAB software in order to analyze the energ ...

2017

Multi-objective Optimization of Supercritical Water Gasification of Leftover Brazilian Ginseng Roots After Phytochemical Recovery Steps

François Maréchal, Alberto Mian, Adriano Viana Ensinas, Diego Tresinari dos Santos, Juliana Queiroz Albarelli

The present study aims at studying the supercritical water gasification (SCWG) of the leftover Brazilian ginseng roots after phytochemicals extraction for synthetic natural gas (SNG) production, envisioning the development of a promising Brazilian ginseng ...

2017

Early-stage decision making approach for the selection of optimally integrated biorefinery processes

François Maréchal, Adriano Viana Ensinas, Ayse Dilan Celebi, Shivom Sharma

Lignocellulosic biorefineries are the best non-petroleum alternatives for a sustainable development. In the biorefinery process design, it is important to implement an algorithm that allows the systematic generation and the evaluation of energy conversion ...

2017

Apparatus for salt separation under supercritical water conditions

Daniel Favrat, François Maréchal, Alberto Mian, Adriano Viana Ensinas

Apparatus for salt separation (2) under supercritical water conditions, comprising a heat exchanger (4) and a fluidized bed reactor (6). The fluidized bed reactor comprising a supercritical water pressure containing wall (8) defining therein a fluidized be ...

2016

A method for aggregating external operating conditions in multi-generation system optimization models

Adriano Viana Ensinas, Christoffer Lythcke-Jørgensen

This paper presents a novel, simple method for reducing external operating condition datasets to be used in multi-generation system optimization models. The method, called the Characteristic Operating Pattern (CHOP) method, is a visually-based aggregation ...

2016

A methodology for designing flexible multi-generation systems

Adriano Viana Ensinas, Christoffer Lythcke-Jørgensen

An FMG (flexible multi-generation system) consists of integrated and flexibly operated facilities that provide multiple links between the various layers of the energy system. FMGs may facilitate integration and balancing of fluctuating renewable energy sou ...

Pergamon-Elsevier Science Ltd2016

Valorization of sugarcane biorefinery residues using supercritical water gasification: A case study and perspectives

François Maréchal, Alberto Mian, Adriano Viana Ensinas

The present study evaluates the use of supercritical fluid technology, particularly supercritical water gasification (SCWG), to add value to residues from a sugarcane biorefinery that produces first and second generation ethanol. This case study aims at el ...

2015

Optimum Biorefinery Pathways Selection Using the Integer-Cuts Constraint Method Applied to a MILP Problem

François Maréchal, Alberto Mian, Adriano Viana Ensinas, Stefano Maronese

Biorefineries are multi-product facilities that convert biomass into a broad variety of products (energy, biofuels, chemicals, feed, and food). In this paper, a new systematic approach to select and rank different biorefinery conversion pathways is propose ...

2015

Multi-objective optimization of SNG production from microalgae through hydrothermal gasification

François Maréchal, Alberto Mian, Adriano Viana Ensinas

The conversion of microalgae biomass into biofuels is a quite well explored field of research. Due to high photosynthetic efficiency, microalgae are considered as a potential feedstock for next-generations biofuel conversion processes. This paper addresses ...

2015

New alternatives for the fermentation process in the ethanol production from sugarcane: Extractive and low temperature fermentation

Adriano Viana Ensinas

Ethanol is produced in large scale from sugarcane in Brazil by fermentation of sugars and distillation. This is currently considered as an efficient biofuel technology, leading to significant reduction on greenhouse gases emissions. However, some improveme ...

Elsevier2014

Thermo-Economic Optimisation of Integrated Ethanol and Methanol Production in the Sugarcane Industry

François Maréchal, Emanuela Peduzzi, Adriano Viana Ensinas, Priscilla Caliandro, Sandro Onorati

The present paper evaluated a sugarcane biorefinery producing ethanol, through the conventional process by sugars fermentation and methanol through bagasse and leaves gasification, hot cleaning and synthesis. The sugarcane biorefinery was modelled using fl ...

Aidic Servizi Srl2014