Process Engineering in Plant Engineering and Construction

From process simulation to commissioning of industrial plants.

With many years of experience, our process engineers, all with extensive knowledge about the refinery, petrochemical and chemical sectors, accompany you from the start of your individual planning projects with highly qualified, long-term oriented consulting.

As a part of greenfield planning for new plants, we take over the complex process design basis of your process plant. This includes concept development with

  • process simulations,
  • material and energy power balances,
  • process flow diagrams and descriptions,
  • PI diagrams as well as
  • equipment data Sheets.

On this basis, the dimensioning of plant components such as columns, pumps, heat exchangers, reactors and furnaces take place.

For amendments and expansions to existing plants, we go back to our customers’ operating data and simulation results and, on this basis, develop the project and further planning documents.

Basic and detail engineering

Depending on the project phase, we prepare the necessary key documents. In studies and basic engineering, we develop possible solution options for our customers and therefore deliver the basis for investment decisions. In the area of authority engineering, we are a competent point of contact and compile all the necessary documents reliably and accurately for a fast execution of the relevant permitting procedures.

In detail engineering, our competent teams carry out the necessary process engineering tasks, building on the basic engineering. In addition to the PI process diagrams, this includes the process or design conditions and execution specifications for machinery and equipment engineering , piping Engineering, E/IC engineering and automation technology.

The trades following the process engineering then bring the specification and inquiry documents for all plant components together for order preparation. At the request of our customers, we can take over the complete process of invitation to bid, technical bid evaluation, and bid comparison or, according to the project, procurement itself. In preparation for commissioning, our teams prepare the commissioning concept, take over the training of staff and lead the commissioning itself as required.

Our process engineering competencies in overview:

Hydraulic calculations
  • network calculations of piping Systems Pump
  • turbine and compressor systems
Thermal calculations
  • Heat exchangers
  • Heat exchanging systems
  • Pipe, tank and container heating
Thermal separation and material exchange
  • Distillation
  • Absorption/desorption
  • Drying
Material combination in fluid phases
  • Suspensions
  • Dispersing liquid – liquid
Solid matter handling
  • Transport and storage of solid matter
Safety engineering
  • Preparation of ex-zone plans
  • Development of safety analysis and accident inspections
  • Execution of HAZOP audits

About Griesemann Group

The businesses belonging to the group of companies, INDUREST, JBV, JBV-INDUREST, Griesemann Anlagentechnik and Blitzschutz Graff, combine almost all specialist trades for industrial plant engineering and construction, and through a synergetic cooperation of all business units are capable of realising not only complete turnkey projects but also operations-driven individual projects.