Optimal Design End of Product – TRAVOR

To carry out this project, we consider three ways:
• Integration of new criteria to optimize the decision-making; addition to economic and technical criteria, it must also take into account environmental aspects and impairment during recycling. These criteria are not sufficiently considered despite their significant impact on production costs and the volume of sales.
• the treatment of choice in the shares of value (recycling function, material, energy recovery, storage ...), the temporal aspects (succession process waste to be implemented), the spatial aspects of the concept of eco-industrial parks or industrial symbiosis (development of waste as close to their place of production).
• taking into account the context of uncertainty around systems or waste to be recovered. Indeed there are many uncertainties: variability of material flow, quality of products within a trajectory, product heterogeneity.

The problem of waste has enhanced with people's awareness of some new difficulties in the last three decades. The quantity of waste grows year by year and the processing becomes more and more difficult. Consequently, it is necessary to develop waste recovery to reduce the disposal of waste and to encourage recovery methods. A methodology based on Case Based Reasoning proposes the possible and value added process and technology for waste recovery. We propose two elements. The first is the creation of a framework for problem representation. The second element is to assess the different recovery processes. The economic criterion gives information about investment, operating costs and profit. For the environmental criterion, the method Eco-cost has been selected because it is focus on a lot of elements and not only in one like carbon footprint. This method is based on damage cost and therefore gives an economic value of the impact of the process. The last criterion is the social impact on population. Among the different indicators, we develop a new method to calculate the total number of accrued jobs, i.e. direct, indirect and induced job. To illustrate our method, we propose a case study: used tyres treatment. Moreover, this biorefinery study proposes to detail the black box model by using a sequence of real unit operations due to the complex thermodynamic. In addition, the process modeling allows improving several other aspects compared to the black box model for instance: the accurate calculation of energy balance or the determination of the physically impossible steps. Moreover, this approach provides a more accurate economic and environmental assessment in order to compare the different process alternatives. A multiobjective optimization are adapted and applied to design an optimal configuration of water and energy exchanges in a park following the rules fixed by the authority of the EIP.

in the future

M. Ramos, M. Boix, L. Montastruc, S.Domenech, Multiobjective Optimization Using Goal Programming for Industrial Water Network Design, Industrial & Engineering Chemistry Research 53 (Vol .45) pp.17722-17735, 2014

Chazara, S. Negny, L. Montastruc, Methodological framework for modeling and evaluating reuse logistics strategies for waste recycling, 4th international Congress on Green Process Engineering, 7-10 April 2014 Sevilla (Spain)

S. Negny, L. Montastruc, F. Fabre, S. Domenech, Multi Scale optimal design of biomass supply chain: From facility to the processing route, 4th international Congress on Green Process Engineering, 7-10 April 2014 Sevilla (Spain)

M. Ramos, M. Boix, D. Aussel, L. Montastruc, P. Vilamajo, S. Domenech, Water Exchanges in Eco-industrial Parks through Multiobjective Optimization and Game Theory, ESCAPE 25 June 1-4, 2015, Copenhague, Danemark

C. Miret, L. Montastruc, S. Negny, S. Domenech, Environmental, Societal and Economical optimization of a bioethanol supply chain, ESCAPE 25 June 1-4, 2015, Copenhague, Danemark

S. Belletante, L. Montastruc, S. Negny, S. Domenech, Influence of the Acetone-Butanol-Ethanol fermentation kinetics on the separation/purification structure, Biorefinery for Food, Fuels and Materials, 15-17 June 2015. Montpellier France

S. Belletante, L. Montastruc, S. Negny, S. Domenech, Modeling of acetone-butanol ethanol production from biomass: generation of a feasible superstructure, ECCE10+ECAB3+EPIC5, September 27th - October 1st 2015, Nice, France

L. Montastruc, M. Ramos, M. Boix, D. Aussel, S. Domenech, Optimization methods for industrial ecology : design of water and energy exchanges in ecoindustrial parks, ECCE10+ECAB3+EPIC5, September 27th - October 1st 2015, Nice, France

P. Chazara, S. Negny L. Montastruc, Framework for modelling and evaluating processes for waste recycling, ECCE10+ECAB3+EPIC5, September 27th - October 1st 2015, Nice, France

Many initiatives in France and Europe deal with the problem of chemistry and sustainable processes, thanks to the interest of the industrial, academic and institutional. These issues of the future are recent and still poorly understood, and in some areas suffer from a lack of research as evidenced by the analysis of Pipame (2010). This is especially true of the theme of recycling with an obvious lack of research in France, given the multiple challenges and potentials described in the next section. All in all countries are behind this theme in relation to Japan. Yet it is a major issue in maintaining security of supply of certain channels in France but also in Europe.
From a macroscopic point of view, the recovery of waste is broken down into three phases: collection, sorting, followed by recovery processes. Due to the skills of the project team and the state of the art on current research, this project focuses mainly on the last step, the least processed.
The TRAVOR project objective is to model and optimize the trajectories of recovery (recycling alternatives) for a end of life waste, or more broadly to improve the control of the impact of chemical products and processes. In the present context, the waste should only be considered as a constraint to minimize but also as a resource to be optimized, allowing the emergence of a circular economy (due to the scarcity of some resources). This project will target a portion of the area covered by the four major missions of the green supply chain (supply chain, reverse supply chain, end of product).
To carry out this project, we consider three ways:
• Integration of new criteria to optimize the decision-making; addition to economic and technical criteria, it must also take into account environmental aspects and impairment during recycling. These criteria are not sufficiently considered despite their significant impact on production costs and the volume of sales.
• the treatment of choice in the shares of value (recycling function, material, energy recovery, storage ...), the temporal aspects (succession process waste to be implemented), the spatial aspects of the concept of eco-industrial parks or industrial symbiosis (development of waste as close to their place of production).
• taking into account the context of uncertainty around systems or waste to be recovered. Indeed there are many uncertainties: variability of material flow, quality of products within a trajectory, product heterogeneity.