Conceptual model-based design and environmental evaluation of waste solvent technologies: Application to the separation of the mixture acetone-water
| Autor: | Antonio Amelio, Danilo Alexander Figueroa Paredes, Bart Van der Bruggen, José Espinosa, Patricia Luis, Jan Degrève |
|---|---|
| Přispěvatelé: | UCL - SST/IMMC/IMAP - Materials and process engineering |
| Rok vydání: | 2018 |
| Předmět: |
Environmental evaluation
General Chemical Engineering Filtration and Separation DISTILLATION/PERVAPORATION INGENIERÍAS Y TECNOLOGÍAS 02 engineering and technology law.invention chemistry.chemical_compound CONSEQUENTIAL LIFE CYCLE ASSESSMENT 020401 chemical engineering Conceptual design law Acetone Economic analysis 0204 chemical engineering Distillation DISTILLATION/INCINERATION ECONOMIC ANALYSIS Waste management Ingeniería de Procesos Químicos Chemistry Process Chemistry and Technology Conceptual model (computer science) General Chemistry 021001 nanoscience & nanotechnology Incineration CONCEPTUAL DESIGN Ingeniería Química Solvent 0210 nano-technology |
| Zdroj: | Separation Science and Technology, Vol. 53, no. 11, p. 1791-1810 (2018) |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496395.2018.1442858 |
| Popis: | In this paper, two waste solvent technologies are presented as alternatives to the disposal of spent acetone-water mixtures. In the first alternative, a batch rectifier is used to concentrate the waste in order to obtain a distillate with a higher calorific value, which is then sent to off-site incineration either in a cement kiln or in a conventional waste solvent incinerator. The second alternative is a hybrid process composed by a batch rectifier and a pervaporation unit that processes in batchwise mode the first cut from the distillation task to obtain a dehydrated solvent. Here, four scenarios are considered, comprising two kinds of membrane materials and two different vacuum systems. For each alternative, the conceptual design was carried out with the aid of conceptual models of the unit operations involved. Quasi-optimal values for design and operation variables were used as input data to perform an economical and an environmental assessment of each alternative. The economic analysis suggests that the hybrid process is the best alternative given that the replacement cost of fresh solvent (about 850 U$S/ton) is considered as a credit value. From the environmental analysis with life cycle assessment, two main conclusions can be drawn: i) the use of the distillate as an alternative fuel in a cement kiln leads to a reduction in emissions that is relevant for the categories related to human health and ecosystem quality; and ii) in terms of resource depletion, the hybrid process distillation/pervaporation with the ceramic membrane HybSi (Pervatech) shows the lowest impact due to the solvent recovery. Fil: Amelio, Antonio. Politecnico di Torino; Italia. Katholikie Universiteit Leuven; Bélgica Fil: Figueroa Paredes, Danilo Alexander. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo y Diseño. Universidad Tecnológica Nacional. Facultad Regional Santa Fe. Instituto de Desarrollo y Diseño; Argentina Fil: Degrève, Jan. Katholikie Universiteit Leuven; Bélgica Fil: Luis, Patricia. Université Catholique de Louvain; Bélgica Fil: Van der Bruggen, Bart. Katholikie Universiteit Leuven; Bélgica Fil: Espinosa, Hector Jose Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo y Diseño. Universidad Tecnológica Nacional. Facultad Regional Santa Fe. Instituto de Desarrollo y Diseño; Argentina |
| Databáze: | OpenAIRE |
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