PPD specialises in process plant design, procurement, constructions supervising and Project Management of large scale Engineering Projects. We provide process plant design engineering expertise throughout all phases of a Project. Our areas of expertise are conceptual design, cost estimating and feasibility studies, FEED (Front End Engineering Design), detailed engineering, site construction supervising and commissioning.

Our professional engineers base their work on a good understanding of our clients business needs, and provide a high quality and comprehensive process plant design and project management service.

We serve our services mainly for oil & gas, petrochemical, chemical, power generation, waste water treatment, pulp and paper mill plants and cement plants.

PPD increased its core team’s efficiency  by investing multiple CAE software for its purpose. Hence, small and dynamic team is capable to bring solutions for even large scale projects.

The company objective is to provide a fast, reliable and economical process plant design and project management service to Client. Our skills range from conceptual design and process feasibility, through detailed specification, engineering , layout and design, to procurement, project management, site supervision and finally commissioning. Our aim is to give a complete “design and build” service to the customer..

PPD bases process plant design on Client’s PFDs (Process Flow Diagrams) and Heat & Mass Material Balances. Upon provision of PFDs, PPD develops the following engineering works.

PPD’s workflow of process plant design is give in the below diagram




Conceptual Design

initial design document for the feasibility study including operation capacities (feed sand products), screening of the process technologies, site (plant location) selection studies, high level process and basic documentations (BFD or PFD and over all plant layout), initial project schedule (Level 1) and budgetary cost estimate (-50 ~ +100%). The Conceptual Design result is the basis of FEED or Basic Engineering.

Feasibility Study

assessment and evaluation of a new project or system viability that focuses the technical feasibility and commercial profitability. The Feasibility Study involves the legal, economic, technology, cost and schedule, environmental and other factor sup to the completion of project as well as the commercial operations. In general, the Feasibility Study is a preliminary study performed in the early stage of the project, a conceptual design or FEED engineering stage.

FRONT END ENGINEERING DESIGN (FEED) is for thee valuation of accurate TIC (Total Investment Cost) estimate and development of over all project execution planning, and preparation of tendering documentation for main EPC (Engineering, Procurement, Construction) contract or selection, and to make a FID (final investment decision). The FEED engineering depth is similar to a basic engineering, and it is developed based on a conceptual engineering or pre-FEED results, and basis of a detailed design and engineering. The FEED engineering main output sare process studies including process technology selection, process and utility configuration, and optimizations for a cost minimization, supporting documentation for permits and funding, EPC execution planning including EPC cost estimate (Accuracy: +/- 15 ~ 30%), EPC Schedule, EPC tendering document, and basis of detailed design and engineering document. Type of FEED is a light, normal and extended FEED based on engineering and deliverables and depth depend on the client’s demand. The FEED is also called a Front End Engineering (FEE) or Front End Loading (FEL).

Basic Engineering

is a basis of detailed design and engineering development for a construction. A cost estimate in the basic engineering phase may typically be refined to +/- 15 ~ 30%, and this is used as the project final investment decision (FID). In many cases this package may also be called as a front end engineering design (FEED) and used as an Invitation of Bidder (ITB) or tender package for the EPC Contract selection.

Detailed Design and Engineering

is to develop all required construction documents and drawings up to AFC (Approved for Construction) stage for the construction, and detailed bill of materials (BOM) for the bulk material procurement based on the basic or front end engineering design (FEED) package. The Detailed Design and Engineering is limited to verifying design basis but producing all construction drawings after incorporating vendor information.

Project Economic Evaluation

The economic evaluation can be performed in a number of ways using various indicators. The level of these indicators for the project at hand define the financial attractiveness of the project. Each indicator has its own meaning about the company, the decision maker sand the project perspective.

Those stated below are the commonones:

  • Pay back period (PBP)
  • Internal (or Investor’s) rate of return (IRR)
  • (Net) Present Value ((N)PV)
  • Return on investment (ROI)


Setur Fenerbahçe Marina “F-13 Pontoon” Fenerbahçe Mah. Kalamış Caddesi Kadıköy-İstanbul - Turkey


Bagdad Boulvard Yesilbahar Street Goztepe-Kadıköy / Istanbul – TURKEY

Phone:+9(0) 532 236 31 56

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