Yuri Nariyoshi - Academia.edu (original) (raw)
Papers by Yuri Nariyoshi
Blucher Chemical Engineering Proceedings, 2018
RESUMO-Um modelo matemático foi proposto para predição do fluxo transmembrana em um processo de c... more RESUMO-Um modelo matemático foi proposto para predição do fluxo transmembrana em um processo de cristalização assistida por membranas submersas. O modelo proposto foi validado utilizando-se solução salina saturada (NaCl) e suspensões salinas (NaCl) com concentração de sólidos de 10% e Reynolds entre 9000 e 38000. O modelo prevê para o processo valores de CPC próximos a 1.
Brazilian Journal of Chemical Engineering, 2016
Crystallization in a Direct Contact Membrane Distillation (DCMD) process was studied both theoret... more Crystallization in a Direct Contact Membrane Distillation (DCMD) process was studied both theoretically and experimentally. A mathematical model was proposed in order to predict the transmembrane flux in DCMD. The model fitted well experimental data for the system NaCl-H2O from undersaturated to supersaturated conditions in a specially designed crystallization setup at a bench scale. It was found that higher transmembrane fluxes induce higher temperature and concentration polarizations, as well as higher supersaturation in the vicinity of the solution-vapor interface. In this region, the supersaturation ratio largely exceeded the metastable limit for NaCl crystallization for the whole range of transmembrane fluxes of 0.37 to 1.54 kg/ (m 2 h), implying that heterogeneous primary nucleation occurred close to such interface either in solution or on the membrane surface. Solids formed in solution accounted for 14 to 36% of the total solids, whereas solid formed on the membrane surface (fouling) was responsible for 6 to 19%. The remaining solids deposited on other surfaces such as in pumps and pipe fittings. It was also discovered that, by increasing the supersaturation ratio, heterogeneous nucleation in solution increased and on the membrane surface decreased. Heterogeneous nuclei in solution grew in size both by a molecular mechanism and by agglomeration. Single crystals were cubic shaped with well-formed edges and dominant size of about 40 µm whereas agglomerates were about 240 µm in size. The approach developed here may be applied to understanding crystallization phenomena in Membrane Distillation Crystallization (MDC) processes of any scale.
Anais do XX Congresso Brasileiro de Engenharia Química, 2015
Anais do XX Congresso Brasileiro de Engenharia Química, 2015
RESUMO-Um modelo matemático foi desenvolvido para predição do fluxo transmembrana de vapor de águ... more RESUMO-Um modelo matemático foi desenvolvido para predição do fluxo transmembrana de vapor de água em processos de destilação com membranas (DM). O modelo se ajustou favoravelmente a dados experimentais com soluções aquosas concentradas de cloreto de sódio (NaCl). Devido à elevada concentração salina, um método termodinâmico robusto foi empregado para a correta predição da pressão de vapor da água. Também foram considerados efeitos de polarização de temperaturas e de concentração. O modelo mostrou ser uma ferramenta útil para prever o comportamento da DM em altas concentrações salinas, que é necessário para o desenvolvimento de processos de cristalização assistida por destilação com membranas (CDM).
Industrial & Engineering Chemistry Research, 2015
A hierarchical design procedure for membrane distillation crystallization processes based on a ri... more A hierarchical design procedure for membrane distillation crystallization processes based on a rigorous mathematical model and presented in a previous article is extended to address important aspects of this technology not yet discussed. The possibility of pore blockage due to premature crystallization inside the membrane distillation module is analyzed, and additional design criteria based on solubility curve shapes and metastable zone limit widths are established. An alternative process configuration is proposed for the treatment of dilute feeds in order to take advantage of the higher transmembrane fluxes characteristic of low-concentration solutions.
Blucher Chemical Engineering Proceedings, 2018
Brazilian Journal of Production Engineering
A transformação de minérios de ferro em aço gera grandes volumes de diferentes tipos de resíduos.... more A transformação de minérios de ferro em aço gera grandes volumes de diferentes tipos de resíduos. Esses são resultantes das mais diversas etapas deste processamento. Devido à crescente preocupação da sociedade com questões ambientais, as legislações ambientais estão ficando cada vez mais restritivas. Nesse cenário, as indústrias do setor siderúrgico estão buscando continuamente alternativas que atendam com margem essas restrições. Posto isso, ressalta-se que a sinterização dos minérios de ferro trata-se de um processo atrativo no que tange ao reuso de resíduos. Em tempo, por ser uma alternativa inteligente, segura e sustentável, o reuso de resíduos siderúrgicos na sinterização vem ganhando atenção da comunidade científica. Assim sendo, realiza-se neste trabalho uma revisão bibliométrica acerca da temática, tendo como base de dados a Scopus e Web of Science. Para isso, foi realizado um mapeamento sistemático da literatura, identificando os artigos de maior relevância e evidenciando a...
Brazilian Journal of Production Engineering
Pyrolysis of macadamia nut shells (MNS) in a fluidized bed reactor has excellent potential to pro... more Pyrolysis of macadamia nut shells (MNS) in a fluidized bed reactor has excellent potential to produce bio-oil. High heat transfer rates and uniform temperature in the fluidized bed can be achieved due to effective gas-solid contact in the reactor. However, binary mixtures can lead to the segregation of particles, which negatively affects heat and mass transfer in such a reactor. Therefore, a 2³ statistical experimental design was used to assess the effects of parameters (i.e., air velocity, particle diameter ratio, and mass fraction of MNS) on the mixing index of the bed of MNS and sand. Among the analyzed factors, only DMNS/DS and V/VMF influenced the mixing index (Im) within a confidence interval of 95%. Based on statistical data analysis, an air velocity 20% above the minimum fluidization and particle diameter ratio (DMNS/DS) smaller than 3 results in uniform particle mixing in the bed (i.e., reaching ideal mixing index values). Moreover, the experimental results indicate that fl...
Universidade Federal do Espírito Santo, Aug 1, 2018
The non-process-elements (NPE's) in the pulp and paper industry, in particular chloride (Cl-) and... more The non-process-elements (NPE's) in the pulp and paper industry, in particular chloride (Cl-) and potassium (K +), eventually accumulate in the chemical recovering cycle. This accumulation often leads to fouling and corrosion inside the recovery boiler. To overcome such problems, an ash leaching system is typically employed in order to remove Cl-/K + and recover Na + /(SO 4)-2 from the recovery boiler ashes. In this context, this research proposes to evaluate the effects of temperature, slurry concentration and pH on the separation efficiency of a laboratorial ash leaching system fed with recovery boiler ashes from a pulp and paper mill. As expected from the literature, the result reveals that concentration has the most significant effect on the response variables, whereas pHnot mentioned in the literaturealso has a significant effect. The optimum operating conditions (84% sulfate recovery efficiency and 97 % chloride removal efficiency) can be achieved at 60ºC, 50% slurry concentration and pH 9.0.
Blucher Chemical Engineering Proceedings, 2018
Programa de Pós-Graduação em Energia, Aug 1, 2018
Primeiramente agradeço a Deus por toda proteção, discernimento, força e por me permitir realizar ... more Primeiramente agradeço a Deus por toda proteção, discernimento, força e por me permitir realizar mais um sonho. Aos meus pais e irmão por todo carinho e apoio quando mais precisei e por serem meu porto seguro. Vocês são especiais em minha vida. Ao meu marido por todo incentivo, compreensão, amor e por ser meu companheiro durante toda essa jornada. Você sempre foi meu grande inspirador. À minha orientadora, Profa. Dra. Taisa Shimosakai de Lira, por toda paciência e dedicação durante o desenvolvimento deste trabalho. Por toda compreensão nos momentos que mais precisei. E principalmente por toda a aprendizagem adquirida durante estes últimos anos. Ao meu co-orientador, Prof. Dr. Thiago Padovani Xavier, por colaborar para o enriquecimento deste estudo. Ao amigo Tiago Agrizzi, por me incentiva a fazer o mestrado, por ser meu parceiro de todas idas e vindas ao Ceunes, por todo conhecimentos adquiridos juntos, por todo confiança, apoio e força nos momentos de mais desespero, enfim por todos os dias empenhados em conquistarmos juntos mais um sonho. Palavras Chaves: Biomassa residual. Pirólise. Termogravimetria. Modelo cinético.
Journal of Membrane Science, 2005
Membrane distillation crystallization (MDC) can be used to process highly concentrated aqueous so... more Membrane distillation crystallization (MDC) can be used to process highly concentrated aqueous solutions. In MDC, membrane distillation (MD) is used to recover water and to generate the desired supersaturation in the crystallizer where product crystals can be precipitated. This paper discusses factors influencing flux at close to saturation and the formation of salt crystals. The flux behaviour was investigated using two aqueous salt solutions of sodium sulfate (Na 2 SO 4) and sodium chloride (NaCl) which have different solubility-temperature coefficients. For both salts it was observed that MD was operable at high concentrations at feed temperatures of 50 and 60 • C with fluxes up to 20 L m −2 h −1. It was found that both concentration and temperature polarization influenced the performance of MD. When operated in batch concentration mode without the crystallizer the flux gradually declined due to vapour pressure suppression and concentration polarization, up to a critical degree of saturation. The flux data could be predicted by heat and mass transfer modeling or by a simple empirical relationship involving the overall vapour pressure driving force and the degree of saturation. Beyond the critical degree of saturation, rapid flux decline was observed due to crystal deposition and scale formation on the membrane which reduced the membrane permeability. The Na 2 SO 4 solution was able to operate at slightly higher degrees of saturation, which may be because the negative solubility-temperature coefficient favours solubility in the polarization layer. In MDC the temperature and saturation level both in the MD and the crystallizer are critical operating parameters. Anhydrous sodium sulfate crystals can be produced by means of MDC with a relatively narrow crystal size distribution and average size of 60-80 m.
The polysaccharides that have sulfates in its composition have been widely studied due to their p... more The polysaccharides that have sulfates in its composition have been widely studied due to their pharmacological potential. One of the main sources are marine algae because they are rich in sulfated polysaccharides and also because they have the advantage of being abundant in nature and are renewable natural resources. The objective of this work was to partially characterize sulfated polysaccharide fractions obtained from the algae species Dictyota cerviconi, Sargassum vulgare C. and Padina boergesenii and evaluate their antioxidants activities. The macroalgae were dried, powdered and treated with acetone to remove lipids and pigments. The extraction of polysaccharide fractions were obtained with increasing amounts of acetone and all the fractions have been assessed for antioxidant activity against DPPH (1,1-dyphenyl-2-picrylhydrazyil) radical. The results show that the fractional polysaccharides of all species of algae showed antioxidant activity, and the brown seaweed Sargassum vul...
Brazilian Journal of Chemical Engineering
Crystallization in a Direct Contact Membrane Distillation (DCMD) process was studied both theoret... more Crystallization in a Direct Contact Membrane Distillation (DCMD) process was studied both theoretically and experimentally. A mathematical model was proposed in order to predict the transmembrane flux in DCMD. The model fitted well experimental data for the system NaCl-H2O from undersaturated to supersaturated conditions in a specially designed crystallization setup at a bench scale. It was found that higher transmembrane fluxes induce higher temperature and concentration polarizations, as well as higher supersaturation in the vicinity of the solution-vapor interface. In this region, the supersaturation ratio largely exceeded the metastable limit for NaCl crystallization for the whole range of transmembrane fluxes of 0.37 to 1.54 kg/ (m 2 h), implying that heterogeneous primary nucleation occurred close to such interface either in solution or on the membrane surface. Solids formed in solution accounted for 14 to 36% of the total solids, whereas solid formed on the membrane surface (fouling) was responsible for 6 to 19%. The remaining solids deposited on other surfaces such as in pumps and pipe fittings. It was also discovered that, by increasing the supersaturation ratio, heterogeneous nucleation in solution increased and on the membrane surface decreased. Heterogeneous nuclei in solution grew in size both by a molecular mechanism and by agglomeration. Single crystals were cubic shaped with well-formed edges and dominant size of about 40 µm whereas agglomerates were about 240 µm in size. The approach developed here may be applied to understanding crystallization phenomena in Membrane Distillation Crystallization (MDC) processes of any scale.
Blucher Chemical Engineering Proceedings
RESUMO-Um modelo matemático foi proposto para predição do fluxo transmembrana em um processo de c... more RESUMO-Um modelo matemático foi proposto para predição do fluxo transmembrana em um processo de cristalização assistida por membranas submersas. O modelo proposto foi validado utilizando-se solução salina saturada (NaCl) e suspensões salinas (NaCl) com concentração de sólidos de 10% e Reynolds entre 9000 e 38000. O modelo prevê para o processo valores de CPC próximos a 1.
Blucher Chemical Engineering Proceedings, 2018
RESUMO-Um modelo matemático foi proposto para predição do fluxo transmembrana em um processo de c... more RESUMO-Um modelo matemático foi proposto para predição do fluxo transmembrana em um processo de cristalização assistida por membranas submersas. O modelo proposto foi validado utilizando-se solução salina saturada (NaCl) e suspensões salinas (NaCl) com concentração de sólidos de 10% e Reynolds entre 9000 e 38000. O modelo prevê para o processo valores de CPC próximos a 1.
Brazilian Journal of Chemical Engineering, 2016
Crystallization in a Direct Contact Membrane Distillation (DCMD) process was studied both theoret... more Crystallization in a Direct Contact Membrane Distillation (DCMD) process was studied both theoretically and experimentally. A mathematical model was proposed in order to predict the transmembrane flux in DCMD. The model fitted well experimental data for the system NaCl-H2O from undersaturated to supersaturated conditions in a specially designed crystallization setup at a bench scale. It was found that higher transmembrane fluxes induce higher temperature and concentration polarizations, as well as higher supersaturation in the vicinity of the solution-vapor interface. In this region, the supersaturation ratio largely exceeded the metastable limit for NaCl crystallization for the whole range of transmembrane fluxes of 0.37 to 1.54 kg/ (m 2 h), implying that heterogeneous primary nucleation occurred close to such interface either in solution or on the membrane surface. Solids formed in solution accounted for 14 to 36% of the total solids, whereas solid formed on the membrane surface (fouling) was responsible for 6 to 19%. The remaining solids deposited on other surfaces such as in pumps and pipe fittings. It was also discovered that, by increasing the supersaturation ratio, heterogeneous nucleation in solution increased and on the membrane surface decreased. Heterogeneous nuclei in solution grew in size both by a molecular mechanism and by agglomeration. Single crystals were cubic shaped with well-formed edges and dominant size of about 40 µm whereas agglomerates were about 240 µm in size. The approach developed here may be applied to understanding crystallization phenomena in Membrane Distillation Crystallization (MDC) processes of any scale.
Anais do XX Congresso Brasileiro de Engenharia Química, 2015
Anais do XX Congresso Brasileiro de Engenharia Química, 2015
RESUMO-Um modelo matemático foi desenvolvido para predição do fluxo transmembrana de vapor de águ... more RESUMO-Um modelo matemático foi desenvolvido para predição do fluxo transmembrana de vapor de água em processos de destilação com membranas (DM). O modelo se ajustou favoravelmente a dados experimentais com soluções aquosas concentradas de cloreto de sódio (NaCl). Devido à elevada concentração salina, um método termodinâmico robusto foi empregado para a correta predição da pressão de vapor da água. Também foram considerados efeitos de polarização de temperaturas e de concentração. O modelo mostrou ser uma ferramenta útil para prever o comportamento da DM em altas concentrações salinas, que é necessário para o desenvolvimento de processos de cristalização assistida por destilação com membranas (CDM).
Industrial & Engineering Chemistry Research, 2015
A hierarchical design procedure for membrane distillation crystallization processes based on a ri... more A hierarchical design procedure for membrane distillation crystallization processes based on a rigorous mathematical model and presented in a previous article is extended to address important aspects of this technology not yet discussed. The possibility of pore blockage due to premature crystallization inside the membrane distillation module is analyzed, and additional design criteria based on solubility curve shapes and metastable zone limit widths are established. An alternative process configuration is proposed for the treatment of dilute feeds in order to take advantage of the higher transmembrane fluxes characteristic of low-concentration solutions.
Blucher Chemical Engineering Proceedings, 2018
Brazilian Journal of Production Engineering
A transformação de minérios de ferro em aço gera grandes volumes de diferentes tipos de resíduos.... more A transformação de minérios de ferro em aço gera grandes volumes de diferentes tipos de resíduos. Esses são resultantes das mais diversas etapas deste processamento. Devido à crescente preocupação da sociedade com questões ambientais, as legislações ambientais estão ficando cada vez mais restritivas. Nesse cenário, as indústrias do setor siderúrgico estão buscando continuamente alternativas que atendam com margem essas restrições. Posto isso, ressalta-se que a sinterização dos minérios de ferro trata-se de um processo atrativo no que tange ao reuso de resíduos. Em tempo, por ser uma alternativa inteligente, segura e sustentável, o reuso de resíduos siderúrgicos na sinterização vem ganhando atenção da comunidade científica. Assim sendo, realiza-se neste trabalho uma revisão bibliométrica acerca da temática, tendo como base de dados a Scopus e Web of Science. Para isso, foi realizado um mapeamento sistemático da literatura, identificando os artigos de maior relevância e evidenciando a...
Brazilian Journal of Production Engineering
Pyrolysis of macadamia nut shells (MNS) in a fluidized bed reactor has excellent potential to pro... more Pyrolysis of macadamia nut shells (MNS) in a fluidized bed reactor has excellent potential to produce bio-oil. High heat transfer rates and uniform temperature in the fluidized bed can be achieved due to effective gas-solid contact in the reactor. However, binary mixtures can lead to the segregation of particles, which negatively affects heat and mass transfer in such a reactor. Therefore, a 2³ statistical experimental design was used to assess the effects of parameters (i.e., air velocity, particle diameter ratio, and mass fraction of MNS) on the mixing index of the bed of MNS and sand. Among the analyzed factors, only DMNS/DS and V/VMF influenced the mixing index (Im) within a confidence interval of 95%. Based on statistical data analysis, an air velocity 20% above the minimum fluidization and particle diameter ratio (DMNS/DS) smaller than 3 results in uniform particle mixing in the bed (i.e., reaching ideal mixing index values). Moreover, the experimental results indicate that fl...
Universidade Federal do Espírito Santo, Aug 1, 2018
The non-process-elements (NPE's) in the pulp and paper industry, in particular chloride (Cl-) and... more The non-process-elements (NPE's) in the pulp and paper industry, in particular chloride (Cl-) and potassium (K +), eventually accumulate in the chemical recovering cycle. This accumulation often leads to fouling and corrosion inside the recovery boiler. To overcome such problems, an ash leaching system is typically employed in order to remove Cl-/K + and recover Na + /(SO 4)-2 from the recovery boiler ashes. In this context, this research proposes to evaluate the effects of temperature, slurry concentration and pH on the separation efficiency of a laboratorial ash leaching system fed with recovery boiler ashes from a pulp and paper mill. As expected from the literature, the result reveals that concentration has the most significant effect on the response variables, whereas pHnot mentioned in the literaturealso has a significant effect. The optimum operating conditions (84% sulfate recovery efficiency and 97 % chloride removal efficiency) can be achieved at 60ºC, 50% slurry concentration and pH 9.0.
Blucher Chemical Engineering Proceedings, 2018
Programa de Pós-Graduação em Energia, Aug 1, 2018
Primeiramente agradeço a Deus por toda proteção, discernimento, força e por me permitir realizar ... more Primeiramente agradeço a Deus por toda proteção, discernimento, força e por me permitir realizar mais um sonho. Aos meus pais e irmão por todo carinho e apoio quando mais precisei e por serem meu porto seguro. Vocês são especiais em minha vida. Ao meu marido por todo incentivo, compreensão, amor e por ser meu companheiro durante toda essa jornada. Você sempre foi meu grande inspirador. À minha orientadora, Profa. Dra. Taisa Shimosakai de Lira, por toda paciência e dedicação durante o desenvolvimento deste trabalho. Por toda compreensão nos momentos que mais precisei. E principalmente por toda a aprendizagem adquirida durante estes últimos anos. Ao meu co-orientador, Prof. Dr. Thiago Padovani Xavier, por colaborar para o enriquecimento deste estudo. Ao amigo Tiago Agrizzi, por me incentiva a fazer o mestrado, por ser meu parceiro de todas idas e vindas ao Ceunes, por todo conhecimentos adquiridos juntos, por todo confiança, apoio e força nos momentos de mais desespero, enfim por todos os dias empenhados em conquistarmos juntos mais um sonho. Palavras Chaves: Biomassa residual. Pirólise. Termogravimetria. Modelo cinético.
Journal of Membrane Science, 2005
Membrane distillation crystallization (MDC) can be used to process highly concentrated aqueous so... more Membrane distillation crystallization (MDC) can be used to process highly concentrated aqueous solutions. In MDC, membrane distillation (MD) is used to recover water and to generate the desired supersaturation in the crystallizer where product crystals can be precipitated. This paper discusses factors influencing flux at close to saturation and the formation of salt crystals. The flux behaviour was investigated using two aqueous salt solutions of sodium sulfate (Na 2 SO 4) and sodium chloride (NaCl) which have different solubility-temperature coefficients. For both salts it was observed that MD was operable at high concentrations at feed temperatures of 50 and 60 • C with fluxes up to 20 L m −2 h −1. It was found that both concentration and temperature polarization influenced the performance of MD. When operated in batch concentration mode without the crystallizer the flux gradually declined due to vapour pressure suppression and concentration polarization, up to a critical degree of saturation. The flux data could be predicted by heat and mass transfer modeling or by a simple empirical relationship involving the overall vapour pressure driving force and the degree of saturation. Beyond the critical degree of saturation, rapid flux decline was observed due to crystal deposition and scale formation on the membrane which reduced the membrane permeability. The Na 2 SO 4 solution was able to operate at slightly higher degrees of saturation, which may be because the negative solubility-temperature coefficient favours solubility in the polarization layer. In MDC the temperature and saturation level both in the MD and the crystallizer are critical operating parameters. Anhydrous sodium sulfate crystals can be produced by means of MDC with a relatively narrow crystal size distribution and average size of 60-80 m.
The polysaccharides that have sulfates in its composition have been widely studied due to their p... more The polysaccharides that have sulfates in its composition have been widely studied due to their pharmacological potential. One of the main sources are marine algae because they are rich in sulfated polysaccharides and also because they have the advantage of being abundant in nature and are renewable natural resources. The objective of this work was to partially characterize sulfated polysaccharide fractions obtained from the algae species Dictyota cerviconi, Sargassum vulgare C. and Padina boergesenii and evaluate their antioxidants activities. The macroalgae were dried, powdered and treated with acetone to remove lipids and pigments. The extraction of polysaccharide fractions were obtained with increasing amounts of acetone and all the fractions have been assessed for antioxidant activity against DPPH (1,1-dyphenyl-2-picrylhydrazyil) radical. The results show that the fractional polysaccharides of all species of algae showed antioxidant activity, and the brown seaweed Sargassum vul...
Brazilian Journal of Chemical Engineering
Crystallization in a Direct Contact Membrane Distillation (DCMD) process was studied both theoret... more Crystallization in a Direct Contact Membrane Distillation (DCMD) process was studied both theoretically and experimentally. A mathematical model was proposed in order to predict the transmembrane flux in DCMD. The model fitted well experimental data for the system NaCl-H2O from undersaturated to supersaturated conditions in a specially designed crystallization setup at a bench scale. It was found that higher transmembrane fluxes induce higher temperature and concentration polarizations, as well as higher supersaturation in the vicinity of the solution-vapor interface. In this region, the supersaturation ratio largely exceeded the metastable limit for NaCl crystallization for the whole range of transmembrane fluxes of 0.37 to 1.54 kg/ (m 2 h), implying that heterogeneous primary nucleation occurred close to such interface either in solution or on the membrane surface. Solids formed in solution accounted for 14 to 36% of the total solids, whereas solid formed on the membrane surface (fouling) was responsible for 6 to 19%. The remaining solids deposited on other surfaces such as in pumps and pipe fittings. It was also discovered that, by increasing the supersaturation ratio, heterogeneous nucleation in solution increased and on the membrane surface decreased. Heterogeneous nuclei in solution grew in size both by a molecular mechanism and by agglomeration. Single crystals were cubic shaped with well-formed edges and dominant size of about 40 µm whereas agglomerates were about 240 µm in size. The approach developed here may be applied to understanding crystallization phenomena in Membrane Distillation Crystallization (MDC) processes of any scale.
Blucher Chemical Engineering Proceedings
RESUMO-Um modelo matemático foi proposto para predição do fluxo transmembrana em um processo de c... more RESUMO-Um modelo matemático foi proposto para predição do fluxo transmembrana em um processo de cristalização assistida por membranas submersas. O modelo proposto foi validado utilizando-se solução salina saturada (NaCl) e suspensões salinas (NaCl) com concentração de sólidos de 10% e Reynolds entre 9000 e 38000. O modelo prevê para o processo valores de CPC próximos a 1.
The transformation of iron ores into steel generates large volumes of different types of ... more The transformation of iron ores into steel generates large volumes of different types of waste. These are the result of the most diverse stages of this processing. Due to society's growing concern with environmental issues, environmental legislation is becoming increasingly restrictive. In this scenario, the industries of the steel sector are continuously looking for alternatives that meet these restrictions with margin. That said, it should be noted that the sintering of iron ores is an attractive process in terms of waste reuse. In time, as an intelligent, safe and sustainable alternative, the reuse of steel waste in sintering has been gaining attention from the scientific community. Therefore, a bibliometric review on the subject is carried out in this work, based on Scopus and Web of Science. For this, a systematic mapping of the literature was carried out, identifying the most relevant articles and highlighting outstanding aspects. The results obtained indicate a scarcity of articles aimed at the reuse of steel waste in the sintering process, even though it is a promising alternative. Furthermore, it is important to pay attention to technical limitations, as these can make reuse an unfeasible solution.