Distillation design and optimization of quaternary azeotropic mixtures for waste solvent recovery

Yus Donald Chaniago,이문용 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.67 No.-

The huge amount of solvents used in the semi-conductor and display industry typically result in waste of valuable solvents which often form complex azeotropic mixtures. This study explored a recovery process of a quaternary waste solvent, comprising methyl 2-hydroxybutyrate, propylene glycol monomethyl ether acetate, ethyl lactate, and ethyl-3-ethoxy propionate. In this study, a novel shortcut column method with a graphical approach was exploited for the distillation column design of complex quaternary azeotropic mixtures. As a result, the proposed shortcut method and design procedure solved the complex separation paths successfully with less computational efforts while achieving all requirements for component purity.

Distillation design and optimization of quaternary azeotropic mixtures for waste solvent recovery

Chaniago, Yus Donald,Lee, Moonyong Elsevier 2018 Journal of industrial and engineering chemistry Vol.67 No.-

<P><B>Abstract</B></P> <P>The huge amount of solvents used in the semi-conductor and display industry typically result in waste of valuable solvents which often form complex azeotropic mixtures. This study explored a recovery process of a quaternary waste solvent, comprising methyl 2-hydroxybutyrate, propylene glycol monomethyl ether acetate, ethyl lactate, and ethyl-3-ethoxy propionate. In this study, a novel shortcut column method with a graphical approach was exploited for the distillation column design of complex quaternary azeotropic mixtures. As a result, the proposed shortcut method and design procedure solved the complex separation paths successfully with less computational efforts while achieving all requirements for component purity.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Effective waste solvent recovery from semiconductor and display industries. </LI> <LI> Simple distillation design procedure for quaternary azeotropic mixtures by exploiting a shortcut method. </LI> <LI> Novel graphical design method for complex separation of column paths. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Significance of operating pressure on process intensification in a distillation with side-reactor configuration

Hussain, Arif,Chaniago, Yus Donald,Riaz, Amjad,Lee, Moonyong Elsevier 2019 Separation and purification technology Vol.213 No.-

<P><B>Abstract</B></P> <P>Distillation with side-reactor (SRC) has already established its potential for understanding the energetic and economic performances of chemical processes. This study assesses the impact of operating pressure on reaction performances and overall economics in the SRC design. In conventional distillation operation, pressure is adjusted such that it permits the use of less expensive cooling water (318 K) in the condenser. However, the pressure of the nonreactive distillation column coupled to a side-reactor should be more carefully managed to obtain the process-intensification potential benefits. In the SRC design, the feed to the side-reactor is withdrawn from the column trays where the reactants are more abundant. Higher column pressure requires a more expensive heat source for the column base and causes temperature rise on the column trays. Depending on the kinetic parameters of the reaction, the pressure of the column can be adjusted to improve the conversion, selectivity, yield, and overall economics of the chemical process in an SRC design. A foremost trade-off between the operating pressure and reactor size/catalyst/heat load is demonstrated through three industrial-chemical processes. The outcome of this study affirmed the importance of understanding the impact, on process intensification, of selecting the appropriate operating pressure during the SRC conceptual design.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The effect of operating pressure on process intensification in SRC design was studied. </LI> <LI> The dependence of side-reactor volume/catalyst weight/heat duty on pressure was studied. </LI> <LI> Three real chemical processes were simulated to analyze the results. </LI> <LI> Optimal design of SRC configurations was obtained by optimizing pressure. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Process Design Alternatives for Producing Ultra-high-purity Electronic-Grade Propylene Glycol Monomethyl Ether Acetate

Hussain, Arif,Chaniago, Yus Donald,Riaz, Amjad,Lee, Moonyong American Chemical Society 2019 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH - Vol.58 No.6

<P>Ultra-high-purity propylene glycol monomethyl ether acetate (PGMEA) is required as a solvent to meet the stringent requirements of the electronic-grade semiconductor industry. Here, a comparative study of two process intensification configurations-a coupling reaction and separation in the transesterification route for PGMEA production-is presented. Reactive distillation (RD), despite being technically feasible for the transesterification reaction, poses severe challenges owing to its operational/design limitations. For instance, the homogeneous catalyst sodium methoxide is insoluble in the reaction mixture and deposited on the reactive packing surface of the RD column. An intensified configuration of the side-reactor column (SRC) configuration is analyzed as an alternative to mitigate the operational limitations of RD. An economic evaluation is conducted for both configurations, showing that the SRC configuration can match the performance of an RD column with only a 5% increase in total annual cost.</P> [FIG OMISSION]</BR>

Design method for the feasibility and technical evaluation of side-reactor column configurations

Hussain, Arif,Chaniago, Yus Donald,Riaz, Amjad,Lee, Moonyong ELSEVIER 2019 CHEMICAL ENGINEERING AND PROCESSING Vol.144 No.-

<P><B>Abstract</B></P> <P>A distillation column with side-reactor column (SRC) configuration is recommended for intensifying the conventional chemical processes in which traditional process intensification (PI) techniques negate the overall economic benefits owing to operational and technical constraints. Existing methods, however, lack systematic approaches to quickly identify whether PI using SRC design is a viable alternative, and therefore requires extensive simulation studies to verify its technical feasibility. This paper presents guidelines that quickly provide insights into the applicability of SRC to a wide range of conventional or reactive distillation (RD) processes. The reported applicability of SRC to three chemical processes clearly demonstrates the reliability of the projected framework. This paper also summarizes basic design parameters to maximize PI benefits from a practical point of view, while considering the applicability of SRC.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Side reactor column (SRC) as process intensification (PI) of reactor and distillation column are studied. </LI> <LI> Guidelines that quickly provide insights into the applicability of SRC to a wide range of reactive distillation (RD). </LI> <LI> Detail on basic design parameters to maximize PI benefits from a practical point of view and the applicability of SRC. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Coal to clean energy: Energy-efficient single-loop mixed-refrigerant-based schemes for the liquefaction of synthetic natural gas

Qyyum, Muhammad Abdul,Chaniago, Yus Donald,Ali, Wahid,Qadeer, Kinza,Lee, Moonyong Elsevier 2019 Journal of Cleaner Production Vol.211 No.-

<P><B>Abstract</B></P> <P>Higher air-pollutant (CO<SUB>2</SUB>, SO<SUB>2</SUB>, particulates, etc.) emission from coal burning prohibits the direct use of coal. The demand for clean and sustainable energy is increasing with the growth of population and living standards. Considering the current energy challenges, coal-enriched countries have focused on the green utilization of coal by converting it to a clean energy source, such as synthetic natural gas (SNG). To fulfill the global clean energy demand, liquefaction is a promising and feasible approach enabling safe storage and transportation. However, the liquefaction of SNG is an energy- and cost-intensive process, primarily owing to the presence of low-boiling impurities such as hydrogen and nitrogen. This paper describes the major challenges and issues associated with the SNG liquefaction process for its commercialization and attempts to solve the issues inherent to the SNG liquefaction industry. The optimal energy-efficient single-loop mixed-refrigerant-based liquefaction schemes, with the separation of low-boiling impurities (hydrogen and/or nitrogen), are presented as a major contribution of this study. The proposed SNG liquefaction schemes are analyzed in comparison with the latest SNG liquefaction study. Liquefied SNG can be produced with energy savings of up to 30.4% compared to the published base case.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Green utilization of coal to convert it to clean energy i.e., LNG. </LI> <LI> Synthetic natural gas liquefaction with the removal of low-boiling impurities. </LI> <LI> Single-loop mixed refrigerant for energy-efficient liquefaction. </LI> <LI> Hydrogen (H<SUB>2</SUB>) and nitrogen (N<SUB>2</SUB>) removal from synthetic natural gas. </LI> <LI> Flash, stripper, and distillation-based separation for H<SUB>2</SUB> and N<SUB>2</SUB> recovery. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Simulation Study of a Reactive Batch Distillation Column

Wahid Ali,Mohd. Shariq Khan,Yus Donald Chaniago,Reizqa Andika,Le Cao Nhien,Bong Gu Choi,Moonyong Lee 제어로봇시스템학회 2014 제어로봇시스템학회 국내학술대회 논문집 Vol.2014 No.5

Conceptual designs of integrated process for simultaneous production of potable water, electricity, and salt

Husnil, Yuli Amalia,Harvianto, Gregorius Rionugroho,Andika, Riezqa,Chaniago, Yus Donald,Lee, Moonyong Elsevier 2017 Desalination Vol.409 No.-

<P><B>Abstract</B></P> <P>The main aim of this study was to conduct preliminary analysis on the performance of two conceptual designs that integrate the production of potable water, electricity, and salt. We used reverse osmosis (RO), pressure-retarded osmosis (PRO), and electrodialysis (ED) to produce potable water, electricity, and salt, respectively. The objective of the analysis is to observe how the relative positions of RO and PRO in the integrated process affect the five key parameters, i.e. the total dissolved solids (TDS) of potable water, permeate rate, the total energy requirement of the RO and ED units, net delivered power, and salt potential. We simulated each integrated design using previously validated mathematical expressions of RO, PRO, and ED. We found that the net delivered power is higher when the RO unit is located before the PRO unit. The same sequence also results in lower energy requirement for producing potable water, although the permeate rate is smaller than that of the rival sequence. On the other hand, the salt potential is not affected by the relative positions of the RO and PRO units.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Integrated process for the production of potable water, electricity, and salt </LI> <LI> Process simulation analysis for the integrated process system </LI> <LI> The effects of different water sources and temperature in the process are studied. </LI> <LI> The design proposed represents a feasible option for the production of water, electricity, and salt </LI> </UL> </P>