Engineering Services: Process

ATSI Inc. provides solutions for a wide spectrum of process engineering projects. Professional Chemical, Mechanical, and Instrumentation and Control Engineers bring extensive process design experience to tackle tough process challenges for existing facilities and innovative new systems.

Services: ATSI Inc. employs an experienced staff and utilizes the latest ASPEN modeling software to offer accurate, cost effective engineering of complex processes.  ATSI Inc. offers a full range of process engineering services, including:

  • Process Development
  • Plant Expansions
  • Process Equipment Relocation
  • Loading / Unloading Facilities
  • Chemical Treatment Facilities
  • Gas Cleaning Systems
  • Cooling and Heating systems
  • Emissions Control Systems
  • Material handling

Design Activities: Design Activities are clearly documented, closely following industry standards and client requirements to minimize change orders and ease construction / fabrication.  ATSI Inc. completes all required design elements including:

  • Process Flow Diagrams (PFDs)
  • Piping & Instrumentation Diagrams (P&IDs)
  • System Descriptions
  • Equipment Specifications & Drawings
  • Process Equipment Datasheets
  • Instrument process data
  • Heat and Material Balance
  • Utility Balance

Process Design Modeling: Whether part of a large Process Design project or investigating potential projects and upgrades, ATSI Inc. optimizes conceptual designs and complex operations through the use of ASPEN process modeling software.


ATSI Inc. provides complete process engineering, producing PFDs, P&IDs, and equipment and instrument specifications.