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Emerging Trends in Chemical Engineering

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Abhijit Mondal Assistant Professor, Chemical Engineering Dept. National Institute of Technology Agartala India.

Ajay Bansal Associate Professor Head, Department of Chemical Engineering National Institute of Technology, Jhallandhar, Punjab, India.

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Alirio Rodrigues Emeritus Professor LSRE-Laboratory of Separation and Reaction Engineering, Departamento de Engenharia QuĂmica, Faculdade de Engenharia da Universidade do Porto, Portugal.

Animes Kumar Golder Department of Chemical Engineering Indian Institute of Technology Guwahati Assam-781039, India.

Anirbid Sircar Director School of Petroleum Technology Pandit Deendayal Petroleum University Raisan, India.

Ankur Gaur Assistant Professor Department of Chemical Engineering Motilal Nehru National Institute of Technology Allahabad, India.

Antonio Gil Professor of Chemical Engineering Department of Applied Chemistry Universidad Publica de Navarra, Spain.

Bharat Modhera Assistant Professor Chemical Engineering Maulana Azad National Institute of Technology, Bhopal, India.

Bibhab Kumar Lodh Assistant Professor Department of Chemical Engineering National Institute Technology, Agartala, India.

Chitturi Venkateswara Rao Research Scientist University of Puerto Rico, USA.

CM Narayanan Professor of Chemical Engineering National Institute of Technology Durgapur, India.

Gomathi Priya Ponnaiah Alagappa college of technology Department of chemical engineering Anna University Chennai, India.

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Emerging Trends in Chemical Engineering

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I take the privilege to present the print version for the [Volume 1 Issue (3)] of Trends in Chemical Engineering. The intension of Emerging Trends in Chemical Engineering is to create an atmosphere that stimulates creativeness, research and growth in the area of Chemical Engineering. The development and growth of the mankind is the consequence of brilliant Research done by eminent Scientists and Engineers in every field. ETCE provides an outlet for Research findings and reviews in areas of Chemical Engineering found to be relevant for National and International recent developments & research initiative. The aim and scope of the Journal is to provide an academic medium and an important reference for the advancement and dissemination of Research results that support high level learning, teaching and research in the domain of Chemical Engineering. Finally, I would like to thank Editors and Authors for their continued support and invaluable contributions and suggestions in the form of authoring. I express my sincere gratitude and thanks to our Editorial board for providing write ups, reviewing and providing constructive comments for the advancement of the journals. With their continuous support and co-operation, we have been able to publish quality Research/Reviews findings for our customers base. I hope you will enjoy reading this issue and we welcome your feedback on any aspect of the Journal.

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Emerging Trends in Chemical Engineering

Contents

1. Mass Transfer Correlation Development in Circular Conduit with the Presence of Entry Region Spiral Tape Wound on Rod as Turbulence Promoter in Homogeneous Flow D.N.V. Satyanarayana, M. Venkateswara Rao, K. Nagamalleswara Rao, P. Rajendra Prasad, V. Sujatha

2. Design and Pinch Analysis of Mono-Isopropyl Amine Production Process Using Aspen Plus and Aspen Energy Analyzer K. Nagamalleswara Rao, G. Koteswara Reddy, P.Rajendra Prasad, V. Sujatha

3. Pinch Analysis of Acetone Production Process Using Aspen Energy Analyzer K. Nagamalleswara Rao, G. Koteswara Reddy, P. RajendraPrasad, V. Sujatha

4. Parametric Studies of In-house Resin for Hardness Removal Anuja Tripathi

Emerging Trends in Chemical Engineering ISSN: 2349-4786 (online) Volume 1, Issue 3 www.stmjournals.com

Mass Transfer Correlation Development in Circular Conduit with the Presence of Entry Region Spiral Tape Wound on Rod as Turbulence Promoter in Homogeneous Flow D.N.V. Satyanarayana1*, M. Venkateswara Rao1, K. Nagamalleswara Rao2, P. Rajendra Prasad3, V. Sujatha4 1

Department of Chemical Engineering, RVR&JC Engineering College (Autonomous), Guntur, Andhra Pradesh, India 2 Department of Chemical Engineering, Bapatla Engineering College (Autonomous), Andhra Pradesh, India 3,4 Department of Chemical Engineering, AU College of Engineering, Andhra University, Vizag, India Abstract In this study, an experimental investigation has been carried out to develop a model for mass transfer correlation. As a part of that experimental data obtained in terms of limiting current values and the data was measured for various flow rates using spiral tape wound on a rod promoters of varying geometric parameters. The geometric parameters are height (H), width (W) and the pitch (P). The experiment carried out for a total of 48 promoters and the limiting current data obtained for 4800 local limiting currents and 240 pressure drop measurements. The spiral tape wound of rod with geometric parameters 0.07 m height, 0.04 m width and 0.04 m pitch given maximum augmentation of 15 fold compared to the empty column without promoter. Keywords: Mass transfer correlation, circular conduit, spiral tape wound on rod, turbulence promoter, homogeneous flow

Emerging Trends in Chemical Engineering ISSN: 2349-4786 (online) Volume 1, Issue 3 www.stmjournals.com

Design and Pinch Analysis of Mono-Isopropyl Amine Production Process Using Aspen Plus and Aspen Energy Analyzer K. Nagamalleswara Rao1*, G. Koteswara Reddy1, P.Rajendra Prasad2, V. Sujatha2 1

Department of Chemical Engineering, Bapatla Engineering College (Autonomous), Andhra Pradesh, India 2 Department of Chemical Engineering, AU College of Engineering, Andhra University, Vizag, India

Abstract This paper presents the design of Mono-isopropyl amine production process. Process flow diagram is designed with Aspen Plus user interface. Mono-isopropyl amine obtained is of purity 100% and the designed plant is safe to environment with less emissions. After the design of the process pinch analysis is applied for the entire process by using Aspen Energy analyzer. From the extracted data using Aspen Energy Analyzer a HEN (Heat Exchanger Network) is developed for the base case design and this HEN is subjected to retrofit analysis to find an alternative energy efficient HEN which minimizes the operating costs. In retrofit analysis four new heat exchangers are added to the base case HEN which reduced the operating cost with the payback period of 1.763 years.

Keywords: Aspen Plus, Aspen Energy Analyzer, pinch analysis, heat exchanger networks (HEN), retrofit analysis

Emerging Trends in Chemical Engineering ISSN: 2349-4786 (online) Volume 1, Issue 3 www.stmjournals.com

Pinch Analysis of Acetone Production Process Using Aspen Energy Analyzer K. Nagamalleswara Rao1*, G. Koteswara Reddy1, P. RajendraPrasad2, V. Sujatha2 1

Department of Chemical Engineering, Bapatla Engineering College (Autonomous), Andhra Pradesh, India 2 Department of Chemical Engineering, AU College of Engineering, Andhra University, Vizag, India

Abstract This article is divided into two parts. In the first part a process flow diagram for the production of Acetone was designed with Aspen HYSYS. Acetone obtained is 94.6% pure and the designed plant is safe to environment with less emissions. In the second part HEN (Heat exchanger networks) was developed for the process plant by performing pinch analysis using Aspen Energy Analyzer. Retrofit analysis was applied to find an alternative HEN which saves the energy of the process by minimizing the operating costs. In retrofit mode four new heat exchangers are added to the base case HEN which reduced the operating cost with the payback period of 0.72 years.

Keywords: Pinch analysis, HYSYS, heat exchanger networks (HEN), Aspen energy analyzer, retrofit analysis

Emerging Trends in Chemical Engineering ISSN: 2349-4786 (online) Volume 1, Issue 3 www.stmjournals.com

Parametric Studies of In-house Resin for Hardness Removal Anuja Tripathi* Chemical Engineering Department, Indian School of Mines, Dhanbad, Jharkhand, India Abstract Presence of high amount of calcium and/or magnesium makes the water hard as these ions in water react with other chemical agents and constituents of metallic plumbing etc. The process accelerates in the presence of heat. It decreases the efficiency of the unit operation due to the formation of scales. Hence, scaling is the main issue for which hard water is required to be treated or polished. De-mineralized water finds wide application in the fields of steam generation plant, high-pressure boiler feed, power-production plant, process plant, cooling systems, steel mills, refineries, petrochemical complexes, hydrometallurgical, metals finishing etc. The high-purity water from a de-mineralized plant is typically used in computer chip, micro-electronics, semiconductor industries. A highly efficient resin Polyacrylamide Carboxylic acid has been developed in-house in Desalination Division, which is capable of removing calcium to the extent of 98.5% in substantially short span of time of 5 min from feed containing calcium as high as 500 ppm and the resin work excellently for streams having pH 4â&#x20AC;&#x201C;7. Also, the loaded metal ions can be recovered and resin can be reused. In this regard, experimental studies by varying different process parameters viz., concentration, time, loading, mesh size, elution etc. have been reported in this paper to highlight the basic parameters for resin selection.

Keywords: hardness removal, poly (acrylamide carboxylic acid) or PAC, scaling, calcium, resin, effluent, parametric studies