Process Engineering
Process engineering focuses on the design, operation, control, optimization and Intensification of chemical, physical, and biological processes. Process engineering encompasses a vast range of industries, such as chemical, petrochemical, agriculture, mineral processing, advanced material, food, pharmaceutical, software development and biotechnological industries. The application of systematic computer-based methods to process engineering is process systems engineering.
The process-design-basis document represents the owner’s instructions to thedesign engineering organization about what the owner wants designed, and how the owner wants the process design to be done.
Flow Diagrams should show the following:
- All major equipment
- Equipment names
- Equipment identification numbers
- Major bypass and recirculation lines
- Control valves
- Valves required to demonstrate routing for all modes
- Pipe sizes if required by office practice
- Interconnections to other systems
- Equipment ratings or capacities
The Piping and Instrumentation Diagram (P&ID)should show the following:
- Mechanical equipment
- All valves associated with the process piping
- Instruments significant to the process piping, including:
- Process pipes
- Vents and drains
- Special fittings
- Sampling lines
- Permanent start-up and flushing lines
- Specific information as applicable to job:
- Instrument designations
- Equipment names and numbers
- Pipeline identification
- Valve identification
- All size transitions in line:
- Reducers and increasers, swages, etc.
- Direction of flow
- Interfaces for class changes
- Seismic category
- Quality level
- Interconnection references
- Annunciation inputs
- Plant computer inputs
- Vendor and contractor interfaces
- Identification of components and subsystems by others
- Reference to a vendor drawing for details not shown
- Intended physical sequence of equipment:
- Including branch lines, reducers, etc.
A Process Data Sheet (PSD) is generally relates to a single item of equipment and contains the essential process data for initiating the detail design of an item.
Process Engineer have to consider several factor for plant design are as follows:
Material Selection Diagrams (MSDs)
Material & Energy Balance (M&EB)
Line list and Tie-in List
Process equipment list
Process specialty items list
Hydraulic design reports
Utility balances
Chemical and catalyst summary
Process effluent summary
Process risk analysis
Process study reports