The Challenge
Our client was facing several challenges related to the selection of dehydration technology downstream of an existing Amine Plant. The existing setup could not meet the stringent water content requirements, which was critical for the longevity of their infrastructure and the efficiency of the CO2 injection process. Their goal was to reduce the water content in their gas stream to 25 LB/MMSCF. Excess water in the system posed significant risks, including potential corrosion, hydrate formation, and inefficiencies in the CO2 injection, which could lead to operational disruptions and increased maintenance costs; so, technology selection was vital.
The Solution
CANUSA EPC conducted a comprehensive dehy technology study involving a detailed analysis of the specific operational needs of the client’s CO2 injection process, as well as the unique gas composition.
Several dehy technologies were evaluated, assessing each option based on key factors like cost, operability, risks and scalability. Technologies included: glycol dehydration, desiccant systems, and membrane technologies.
Cost Analysis:
Detailed breakdown of the CapEx and OpEx associated with each technology – provided clarity to the upfront costs but also the long-term expenses and maintenance requirements.
Risk Assessment:
Safety, reliability, and potential disruptions to the CO2 injection process. Water content control is critical in preventing hydrates and corrosion, so the risks of failing to meet the target of 25 LB/MMSCF were a major consideration.
Operability:
Focused on minimizing the need for extensive retraining or complicated maintenance procedures. We prioritized technologies that would be easy to integrate with their existing systems and infrastructure.
Future Scalability
Assessing the ability to scale was crucial – the client wanted to avoid future bottlenecks/overhauls with any future operational expansion.
The Results
- Summarized detailed findings and technology options – one in particular would reliably achieve the client’s target of 25 LB/MMSCF (majority of technologies could only achieve ~50 LB/MMSCF, double the desired goal).
- Report provided clarity and transparency of technology options.
- Solution offered a balance of performance, cost-effectiveness, and future expandability.
- Reduced risk of operational failures and ensuring confident project execution.
