Operations

Concept to operations,
one delivery framework.

Zimar Group supports clients across the full project lifecycle: shaping and phasing the investment case, selecting technology and licensors, engineering and building the asset, and optimising it in operation.

Group Footprint

Seven offices across four regions.

West Africa — Niger & Nigeria

Flagship development & regional operations

Flagship
Niger
Dosso Secretariat, Dosso
African operational office
Suite 411, Adamawa Plaza, Central Business District, Abuja
Field base
Akenfa, Yenagoa, Bayelsa State
Flagship project
Dosso refinery, 100,000 bpd design capacity

Americas — Houston, Toronto & Grand Cayman

Engineering & group entities

Engineering hub
Operational office · Hightec Energy
5161 San Felipe Street, Houston, Texas
Zimar Inc.
401 Bay Street, Toronto, Ontario
Cayman Islands
Caribbean Plaza, 878 West Bay Road, Grand Cayman

United Kingdom — London

Institutions & counterparties

Representative
Representative office
1 Mayfair Place, London W1J 8AJ

Concept and front-end engineering

Zimar’s strength is the early, strategic phase. The decisions made at concept and FEED stage set the cost, schedule and risk profile of the whole investment.

FEED deliverables

PFDs, P&IDs, hydraulics and equipment sizing

Supporting studies

Market, configuration, licensor and site selection

  • Electrical load calculations, one-line diagrams and I/O lists
  • Civil and structural design drawings
  • Environmental permitting and technical due diligence
Two engineers review drawings beside a process plant at dusk

Engineering and construction

Complete, accurate and efficient scoping and execution from start to finish, with cost estimation, vendor selection and risk analysis run under one project-management framework.

Ethane blending system

Engineered, fabricated and built in 80 days

200 MMcf/d gas plant

Rebuilt after fire under a single contract

  • Grassroots refineries, upgrades, revamps and single process units
  • Offsites and utilities, including a 220,000 kg/h steam boiler upgrade
  • Four modular refineries delivered by Hightec Energy in the United States
Elevated view of a process plant at dusk

Commissioning and optimisation

Systems and equipment become functional and the asset reaches full operation. From there the work is continuous improvement of performance for years to come.

Loading recovery

Payback in under a year, up to 10% more throughput

Material balance

NGL balance losses cut for a major US refiner

  • Commissioning and start-up support
  • Measurement, inventory and LACT control audits
  • MRV audits and facility carbon footprint
Technician operating a valve on a pipe manifold

Project examples were delivered by group company Hightec Energy in the United States. Clients are not named for confidentiality.

Standards and control, designed in

The design basis for the Dosso refinery, set at feasibility stage and confirmed at FEED with the process licensor.

Standards

API 650 tanks, ASME B31.3 piping and ISO 29001 process safety, with third-party certification.

Control

Distributed control, safety instrumented systems and advanced process control.

Digital twin

Real-time monitoring, predictive maintenance and emissions tracking.