Chisholm Cryogenic Gas Plant


Audubon Companies’ scope of work included engineering, design, procurement, fabrication, and construction of a grassroots 120 MMSCFD refrigerated turboexpander plant. It utilizes the GSP process to extract 92% of the ethane and essentially 100% of the heavier hydrocarbons from the rich natural gas feed stream. The facilities include a 330 GPM amine unit for CO2 removal from both inlet gas and Y-grade liquid product, 2050 HP of electric motor-driven screw refrigeration compression, and 9000 HP of turbine-driven centrifugal recompression.

Project Overview

  • 120 MMSCFD Capacity
  • Cryogenic Gas Processing Plant
  • Turboexpander
  • Gas Subcooled Process (GSP)
  • Propane Refrigeration
  • Amine Product Treating
  • Residue Reciprocating Compression, Solar Turbine
  • Plant Utilities (Flare, Drain, Power, Instrument Air)
  • Greenfield

Project Scope

  • Project Management
  • Detail Engineering & Design
  • Automation & Control
  • Construction Management
  • Process Safety Analysis
  • Power Generation
  • Fabrication