About Us
D. Oehlmann and Associates is a Melbourne-based consulting chemical engineering company with over 35 years of experience delivering flexible, cost-effective industrial solutions.
Our Story
Founded by Dean Oehlmann (B.Eng Chemical, Honours - University of Melbourne, 1988), our company specialises in complete turnkey plant design, supply, installation and commissioning.
Our expertise spans industrial waste treatment, petrochemical processing, food manufacturing, biodiesel production, fine chemicals, and aerospace applications. Core capabilities include distillation systems, solvent recovery, evaporator technologies, and hazardous materials handling.
We have designed and commissioned prescribed waste facilities, crude oil refineries, ethanol plants, and specialty chemical production lines across Australia and internationally.
What distinguishes us is our ability to deliver end-to-end project solutions—from feasibility studies and process design through to equipment sourcing (from Australian and Chinese suppliers), installation, and commissioning. Our small, responsive team provides direct client communication and tailored solutions that meet both technical requirements and budget constraints.
Our Capabilities
We offer end-to-end engineering services with expertise across the full project lifecycle.
Process Design
Chemical and process engineering design carried out in-house
HAZOP & Risk Assessment
Comprehensive safety reviews and hazard analysis
Detailed Engineering
From concept through to detailed design documentation
Equipment Supply
Extensive supplier network in Australia and China
Installation & Commissioning
Full project delivery through to operational handover
Hazardous Areas
Expertise in flammable and hazardous material handling
Why Choose Us
- Small, dynamic team with direct client communication
- Proven track record of successful turn-key projects
- Cost-effective solutions through global supplier network
- In-house capability for design through to installation
- Expertise in hazardous and flammable materials
- Holistic approach drawing on broad industry experience
