What Is Different About These Projects?
Consider, for example, a petrochemical company that seeks to implement advanced recycling projects to meet its environmental, social and governance (ESG) goals. There are emerging technologies that make it possible to convert plastic and other waste into petrochemical feedstocks, reducing or eliminating a company’s need for virgin feedstock. A petrochemical company likely has little experience with these technologies and the special design and construction considerations that impact the cost of integrating them into an existing chemical complex. There are many factors to consider. Among them are: (See Figure 1).
- Need for controlled environments. Unlike most refining and petrochemical processes, advanced recycling processes can require controlled, indoor environments. Locating unit operations inside buildings may simplify piping, insulation and heat-tracing requirements, but it can also impact utility requirements and complicate layout, maintenance access and future expansion.
- Custom material handling systems. The materials handling systems for plastic feedstocks, intermediates and final products are different from those used to transport gases and liquids through a facility. Each system must be designed to address the unique properties of the materials being managed — issues that may be unfamiliar to hydrocarbon processors.
- Slow permitting process. Finding the appropriate regulatory framework for a unique process can take time, especially if the owner wants to avoid permitting under existing rules for established operations.
- Wastewater characterization and treatment. In many cases, the wastewater streams from emerging technologies are not well characterized, which can hamper the design and permitting of downstream wastewater treatment systems. Early development of a wastewater strategy and its impact on costs and schedule is needed to determine project feasibility.
- Special fire protection measures. Emerging technologies may require upgrades to even the most robust safety and fire protection systems. A contingency analysis that reviews new processes is fundamental to designing systems that identify and address risks.
- Impacts on utility sourcing. Capital planning must consider the complexities these projects add to the overall utility infrastructure and the contracts required to deliver needed utility supply, especially if low-carbon energy sources are required.