L1 Overview
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Chemical Process Technology CHE F419
Dr. Jegatha Nambi Krishnan
Department of Chemical Engineering
14th Jan. 2015
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Course Description – BITS Pilani
Chemical industries Facts and Figures
Unit operations & processes involved
Separation task selection and examples
Production of Sulfuric acid
Production of Nitric acid
Production of Fertilizers
Production of Pulp and Paper
Production of Cement
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Course Description – BITS Pilani
Manufacturing process involved in Edible &
essential oil, Soap, detergents etc
Coal based technologies
Crude oil refining processes
Petrochemical processes
Polymerization processes
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Text (T), Reference book (R)
T1: “Dryden’s Outlines of Chemical Technology for the 21st Century" Edited by M. Gopala Rao and Marshall Sittig. East West Press, 3rd Ed., 1997.
References suggested based on the topic of discussion
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Evaluation Scheme
Evaluation Component
Duration (min) Weightage (%) Date & TIme Nature of Component
Test I 60 20% 27-02-15 (8.30-9.30 AM)
CB
Test II 60 20% 27 -03-15 (8.30-9.30 AM)
CB
Seminar (1)/ Assignments (2)
- 20% To be announced by I/C
Compre 180 40% May 6th 2014 (FN)
CB
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Aspects of Industrial Chemical Processes
• Products
• Types of process
• Flow sheets
• Mass balances
• Energy balances
• Heat transfer and heat exchangers
• Reactor design and operation
• Separation and purification processes
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Aspects of chemical processes cont.
• Process instrumentation and process control
• Materials handling
• Process economics
• Safety and environmental issues
• Quality
etc
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Classification of chemical products
• Bulk chemicals e.g. sulphuric acid
• Fine chemicals e.g. ‘ibuprofen’
• Speciality chemicals e.g. adhesives
• Inorganic/organic
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Chemical processes
Chemical processes consist of a number of sequential and integrated operations carried out in appropriate equipment.
For example chemical reaction carried out in a chemical reactor.
The precise operations, sequence of operations and equipment specifications depend on the nature of the process, operating conditions, materials used and product produced.
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Chemical processes
Operation equipment Chemical reaction reactor Distillation distillation column Filtration filter units Drying dryers (various
types) Fluid transport pipes, valves, pumps etc Process control measurement devices, controllers, control valves etc Evaporation evaporators Centrifugation centrifuges Heat transfer heat exchangers Granulation granulator etc
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Flowsheets
Flowsheets are used to describe the operating details of chemical processes. There are a number of basic types:
Flowcharts (or block diagrams),
Process flowsheets (or Process Flow Diagram),
Piping and Instrumentation Diagrams (PID).
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Flowsheets
• Schematic representations
• Arrangement of equipment
• Interconnections
• Movement of material
• Stream connections
• Stream flows/quantities
• Stream compositions
• Operating conditions
etc
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Process flowsheet
• Symbols
• Stream information
• Layout
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Exercise
Construct a process flowsheet for a batch esterification reaction from the information given.
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Scope and Objective
o Insight into various manufacturing technologies.
o Apply knowledge gained in chemical technology in the
manufacturing plants.
o Branch of chemical engineering that applies physical
science/life science together mathematics and economics to
process that convert raw materials /chemicals into more
useful or valuable forms.
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Chemical Process Eng. – University of Surrey
From detergents and fast computers to cost effective cost effective drugs to safer air travel- Chemical engineering make
tangible difference across industries
Gas – powered
future
Biofuel production
Water crisis
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Why Chemical Process Technology?
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