handling chemicals & chemical processes - tips, tricks & tools
DESCRIPTION
This will provide you with practical knowledge (including tips, tricks and tools) covering the fundamentals of chemistry, chemical and process engineering. It will greatly assist you in communicating more effectively with your chemical engineering colleagues. In industry, handling chemicals is considered a hazardous occupation. Chemical engineers are a trained set of specialists who have spent years in understanding the nature and behavior of chemicals and chemical process systems. If you are a non-chemical engineer we aim at bringing this knowledge to you in a two-day interactive workshop.TRANSCRIPT
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Handling Chemicals & Chemical Processes – Tips, Tricks & Tools
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Introduction to chemicals Chemicals play a vital role in life Lower living beings, like birds and animals, take
‘medicines’ to supplement deficiencies in their system Today, chemicals are found in every aspect of life In the industrial world
» Chemistry – Explains the structure of every known substance
» Chemical Engineering - Standardization of chemical production processes
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Basics of chemical engineering and chemistry
• Efficient and economic control of chemical processes
• Design of chemical reactors and process plants
• Development of sustainable products
• Pollution control and treatment of industrial wastes
•Chemical engineering is associated with:
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Typical chemical process plant
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Unit operations
• Processing and manufacturing of chemicals in industries :
Heat transfer, mass transfer, fluid flow, distillation, evaporation, absorption, drying, leaching, mixing, crystallization, adsorption and humidification
Operations
Physical operations necessary formanufacturing chemicals
• Unit operations
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Fluid mechanics
Branch of engineering that investigates the behavior of fluid
• Fluid mechanics
• Fluid statics• Fluid dynamics
Source: http://homepages.cae.wisc.edu/~chinwu/CEE310_Fluid_Mechanics/CEE310.html
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ThermodynamicsBranch of engineering science and deals with the transformation of heat energy into other
forms of energy or vice versa
• Chemical kinetics : Goal is the successful design and operation of chemical reactors
Source: http://www.idea.wsu.edu/ChemKinetics/
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Chemical Engineers – scope and responsibilities
Mainly deals with industrial processes in which raw materials are changed into useful products
Chemical engineers:» Develop, design and engineer complete processes and the
equipment used in them» Choose the proper raw material» Operate the plants efficiently, safely and economically» Ensure that the products meet the requirements set by
customers
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Operation Smooth operation of a plant is a very difficult task and requires
the close attention of the engineer at all times Quality and quantity of the product is also directly dependent on
the efficient operation of a plant Familiarity with industrial equipment such as pumps,
compressors etc. is necessary for a chemical engineer The (chemical) manufacturing process can be divided into the
following steps:» Raw materials» Physical treatment steps» Chemical treatment steps» Recycling» Products
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Instrumentation and control
• Necessary to maintain the plant in a proper working condition
• Batch operation utilizes fewer instruments and requires more supervision from the workers and the chemical engineer
• Use of computers has reduced this cost to some extent
• DCS (Distributed Control System) :
• Reduces labor cost & Supervision costs • Relative unreliability of human actions• Availability of many types of instruments at a
low price and high reliability
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Process system engineering
A major improvement over envisioning design, which involves simple, non-interacting, static systems that use
only operations and unit processes.
Source: http://www.surrey.ac.uk/postgraduate/process-systems-engineering
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Environment
• Environmental engineering - To develop new methods and techniques to minimize waste generation, treat wastes generated by process industries, and develop renewable sources of material and energy
• Design :
Designing is one of the most creative, satisfying and rewarding activities undertaken by a chemical engineer
Also includes economic evaluations of new processes, designs individual pieces of equipment for the proposed new venture, or development of a plant layout for coordination of the overall operation
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The ten ‘greatest achievements’ of chemical engineering
The atom The plastic age The human reactor Wonder drugs for the masses Synthetic fibers Liquefied air The environment Source: http://www.epa.gov/radiation/understand/atom.html
Food Petrochemicals Synthetic rubber
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Summary Ten greatest achievements in the field of chemical engineering are:
» Understanding the structure of atoms» Development of plastics» Understanding the human reactor» Production of wonder drugs for the masses» Production of synthetic fibers» Liquefied air» Saving the environment (harnessing the power of nature)» Food processing» Petrochemicals» Production of synthetic rubber
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Quick Quiz Who are Alchemists?
Why is their work of importance?
What was the first parameter used to measure the industrial strength of a country?
How does Chemical Engineering differ from any other branch of engineering?
What was the first naturally occurring substance used in the development of plastics?
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DO YOU WANT TO KNOW MORE?
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