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Propane Terminal Restart
Restart and Ongoing support
- Trusted Partner in Modernization – LDIS delivered a full upgrade of New England’s largest LPG terminal, ensuring reliability and performance for decades to come.
- End-to-End Engineering Expertise – From design to commissioning, our multi-discipline team streamlined every stage to reduce risk and accelerate project delivery.
- Strengthening Critical Energy Infrastructure – Enhancements secured safe, efficient propane distribution for the region, reinforcing the terminal’s role as a vital energy hub.
- Smarter, Safer Solutions – Advanced modeling, instrumentation, and process controls optimized operations while meeting the highest safety and compliance standards.
- Ongoing Value Beyond Startup – With continuous automation improvements, hazard analysis, and expansion support, LDIS helps clients operate at peak efficiency long after commissioning.
Engineering Excellence Drives New England’s Largest LPG Terminal Upgrade
LDIS delivers full-spectrum engineering, construction support, and ongoing operational enhancements.
LDIS provided comprehensive engineering services to modernize the largest LPG terminal serving the New England region. From design through commissioning, LDIS led Process, Mechanical, Civil, and Structural Engineering efforts, also serving as the Rhode Island Engineer of Record for permitting.
The Providence terminal, originally commissioned in 1972, handles liquid propane (LPG) offloaded from ships and is stored before distribution via truck loading stations, serving as a critical propane hub for New England.
Key LDIS contributions included the engineering, design, procurement, and commissioning of an on-demand glycol heating system added to the terminal to condition stored propane for ambient truck loading. The team also redesigned and replaced the process cooling fans, upgraded the truck loading can pumps to increase load-out capacity, and modernized both the meter skids and the mercaptan odorization skid. In addition, LDIS replaced all truck rack load-out arms to modern standards with higher capacity, revamped the port-side ship offload valves and controls, and designed and delivered the civil and structural works for a new office and control building.
Additional LDIS contributions to the facility include updating P&IDs, CAD modeling, materials take-off (MTO) and bill of materials (BOM) creation, process modeling, and conditions of service development. LDIS also specified instrumentation and equipment, generated supporting documentation, and provided construction support and commissioning assistance to safely restart terminal operations.
Post-startup, LDIS continues to support operations through automation improvements, including OT network optimization, and programming and HMI updates. LDIS also assists in facility expansion projects, performing process hazard analyses (PHA) and advanced process modeling to ensure safety, efficiency, and regulatory compliance.
Through these efforts, LDIS has ensured the terminal operates at peak capacity, meets modern standards, and continues to serve as a critical propane hub for New England.
Gallery
Project Snapshots
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