• Unipar Carbocloro

    Polishing System for the Mercury Abatement Tower

    Cubatão, São Paulo, Brazil

Project Summary


This BRL 1 million project in Cubatão, Brazil, encompassed the design of a polishing system for exhaust gas emitting from a mercury vapor abatement tower that would increase efficiency and further reduce gas emissions to well below current international standards. The project team faced significant challenges, including integrating new equipment with an existing operating plant, serious space constraints, and a tight deadline for connecting to the process.


The design team utilized OpenPlant to create 3D models and streamline the review process, making it easy to share key information across the project team including with operations. Unipar Carbocloro selected to carry out the engineering design in-house rather than hiring an external engineering company, which saved 33 percent in design time and eliminated errors resulting in shortened overall project time. The firm also streamlined information mobility between engineering and purchasing, as materials lists were issued automatically according to the specifications in the 3D models.


Thanks to the flexibility of OpenPlant, Unipar Carbocloro was able to develop its own applications to meet the unique environment. This allowed them to save USD 52,000 in third-party services while realizing their goal of reducing gas emissions to much lower than the internationally mandated levels. The solution will greatly improve air quality in the surrounding communities.


Bentley’s OpenPlant applications enabled the team to perform 3D design of their new plant polishing system, and do so 33 percent faster than required by the project deadline. The software increased project team collaboration, accelerated review cycles, automated the material specification processes (for material lists and costing, for example), and ensured company project standards were applied consistently.  

  • Using Bentley OpenPlant, Unipar Carbocloro reduced its gas emissions into the atmosphere to much lower than the internationally mandated levels.
  • Because Bentley OpenPlant allowed Unipar Carbocloro to develop the solution using internal resources, the team saved a projected USD 52,000 in third-party project costs.
  • Unipar Carbocloro was able to complete the project 33 percent earlier than planned.
  • “Easy operation and flexibility of use were important reasons we chose to deploy Bentley applications . . . We are very satisfied.”

    Carlos Rodrigues Project Engineer Unipar Carbocloro