Services

Process Engineering

GPA has a highly experienced, multi-skilled team of process engineers, metallurgists and experts in technically complex chemical fields.

GPA delivers single and multi-discipline engineering projects for Greenfields and Brownfields plants, satellites and entire operations
across various industries such as: oil and gas, mining, mineral processing, water and chemical, including the developing hydrogen industry.
Our strength in process design and optimisation is due to our strong affiliation with operations and production, and our ability to work with client operation and maintenance teams, to define problems and identify solutions.

We perform facility process modelling to provide: sizing, debottlenecking, optimisation, heat recovery and efficiency improvements for gas, liquids and multiphase systems.

GPA process risk assessments also use static and dynamic simulation of the process to ensure the viability, stability, and safety of the system. We use a combination of in-house tools and Aspen HYSYS. Dispersion analysis for flammable gases is modelled using Phast to ensure hazardous area classifications.

Our Process Engineering services include:

  • Concept, scoping and feasibility studies
  • Front-end through to detailed engineering design
  • Troubleshooting, debottlenecking and optimising
  • Value improvement studies
  • Procurement and tender management
  • Project management
  • EPC, EPCM, turnkey solutions
  • Audits and risk assessment facilitation
  • Plant safety inspections & assessment
  • Capex and opex estimates
  • Owner’s engineers
  • Incident investigation
  • Commissioning/operability and plant handover
  • Decommissioning and abandonment

Our Expertise

  • Process plant modelling and simulation
  • Process flowsheet development
  • Mass and energy balances
  • Process diagrams and calculations
  • Equipment sizing and specification for rotating equipment (pumps, compressors), pressure vessels, heat exchangers, tanks and all associated accessories
  • Instrument and relief device sizing and specification
  • Hazardous area classification
  • Process safety audits and HAZOP facilitation
  • Process control system interpretation/troubleshooting
  • Process control philosophy and functional descriptions
  • Commissioning, operating and training documentation
  • Chemical transport/storage facility designs
  • Storage pond and containment bund sizing/design
  • Water treatment facility specification and selection including UF/MF and RO treatment plants
  • Bulk materials handling equipment sizing/selection including bins, hoppers, conveyors, mills, crushers

Our Systems

  • Flowtran – pipeline modelling
  • Metsim, SYSCAD – mineral processing plant
  • Phast – radiation/plume dispersion/HA
  • KY Pipe, Pipe Sys – steady state, surge, transient piping analysis
  • FlareTOT, FlareNET – flare and vent systems
  • PetroSIM, HYSYS – steady state/dynamic process simulation

Let’s Talk

A highly experienced, multidisciplinary engineering and management firm, GPA has consulted and provided engineering, procurement and construction management (EPCM) services, since 1987. We develop, engineer, and implement industrial scale projects across the Oil & Gas, Defence, Water Treatment & Distribution, Mining & Minerals Processing, Power Generation & Distribution, Renewable Energy and Hydrogen sectors.

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