The methodology employed in most of our engineering study projects study includes using first principle calculations and process simulation software called ASPEN HYSYS. HYSYS is an abbreviation for Hyprotech Systems, is a process-modelling software, capable of steady-state and dynamic simulations.
It was developed by AspenTech and usually used by chemical process engineers to mathematically model chemical processes, from unit operations to full chemical plants and refineries. HYSYS is able to perform many of the core calculations of chemical engineering, including those concerned with mass balance, energy balance, vapour-liquid equilibrium, heat transfer, mass transfer, chemical kinetics, fractionation and pressure drop. The diagram on the right shows a process, units operations and stream numbers.
The table shows the properties of each stream.
Our chemical process engineering consultants provide conceptual design, front-end engineering design and detailed design within the chemicals, renewable fuels, petrochemicals, oil & gas, mining & mineral processing. Below are the typical process flow diagram (PFD) and piping & instrumentation diagram (P&ID) that our process engineers had delivered.
In the design of a chemical plant, our process engineers will execute the following tasks:
- Process design basis
- Process conceptual design
- Mass & energy balance
- Single and multiphase process calculations
- Control philosophy and functional specification
- Process design and review
- Selection and sizing of:
- Preparing list for:
- Hydraulics study report
- Utilities summary list
- Preparing datasheets for instrument such as:
flow indicator and transmitters
level indicator and transmitters
pressure indicator and transmitters
temperature indicator and transmitters
pH indicator and transmitters
conductivity indicator and transmitters
- Selection and/or design of process equipment
- Sizing of process equipment
- Preparing datasheets for equipment such as:
mixing tanks and static mixers
CSTR and plug flow reactors
- Preparing specification for vendor package
- HAZOP study and HAZOP closeout report
- Developing SOPs for:
- Commissioning procedure
In addition, our process engineers also perform sensitivity analysis on crucial variables to determine which are the most important variables that result in the most significant changes.
Our chemical process engineers will develop accurate mathematical models that can be used to predict process changes as a consequence of changing the value of certain variables. Using Microsoft Excel, these mathematical models are then transformed into a form that is user-friendly for the client.