PROCESS INSTRUMENTATION Introduction to ISA Symbology Miss Anis Atikah Ahmad Email:anisatikah@unimap.edu.my) Tel: 04-976 3245

Process & Instrumentation Pump, Compressor, Fan & Blower LEARNING FLOW Valves In Industry Process & Instrumentation Diagram (P&ID) Pump, Compressor, Fan & Blower ISA Symbology Process Flow Diagram (PFD)

Learning Outcomes: By the end of this lecture, you should be able to Identify ISA Symbology used to show unit operations, valves, connections, pumps, compressors and heat exchangers.

Outline Introduction ISA Symbology for Unit operations Valves Connections Pumps Compressors Heat Exchangers

Introduction to ISA Symbology Abbreviation of ISA Stands for Instrumentation, Systems & Automation Society ISA Symbology A standard developed by ISA towards a goal of uniformity in the field of instrumentation Application of ISA Symbology PFD (Process Flow Diagram) P & ID (Piping & Instrumentation Diagram)

Unit Operation Symbols Name Description A separator unit used commonly to crack liquid contains miscellaneous component fractions. Distillation column or Liquid mixer A process unit that used to mix several components of liquid.

Unit Operation Symbols Name Description A separator unit used commonly to extract liquid mixture into gas phase. Stripper Absorber A separator unit used commonly to extract mixture gas into liquid phase.

Unit Operation Symbols Name Description A process unit where chemical process reaction occurs Reaction chamber Horizontal tank or cylinder A unit to store liquid or gas.

Unit Operation Symbols Name Description A unit for heating. Boiler Centrifuge A separator unit that to physically separated liquid mixture. (exp: oil-liquid)

Valves Symbols Symbol Name Gate Valve Globe Valve Ball Valve Check Valve Butterfly Valve

Valves Symbols Symbol Name Relief Valve Needle Valve 3-Way Valve Angle Valve

Connections Symbols

Pumps Symbols

Compressors Symbols

Heat Exchanger Symbols

QUIZ 1 Production of Ethane from Ethanol Ethanol is fed to continuous reactor with presence of Acid Sulphuric catalyzer to produce ethylene. Distillation process then will be applied to separate ethylene-H2O mixture. Ethylene as a top product is then condensate with condenser to produce liquid ethylene. Hydrogenation of ethylene applies in another reactor with presence of Nickel catalyzer to produce ethane as a final product. Given below is the block flow diagram of the process. Re-draw the diagram by applying ISA symbology. Hot water out Ethylene liq. CH2CH2 (l) Ethylene, CH2CH2 (g) Distillation column Cold water in Ethanol, C2H5OH H2SO4 Reactor 1 Reactor 2 Ethane, CH3CH3 CH2CH2 H2O Ni Hydrogen, H2 H2O

Recall… Reactor Condenser Distillation Column

THANK YOU…..