Downstream Excellence
Transforming Crude Into Value
Downstream Excellence
Refinery & Processing
Al Nassar's Refinery & Processing division delivers full-lifecycle refinery services — from greenfield feasibility studies to brownfield revamps, from process design to operations management and asset optimisation.
Our engineers have delivered refinery projects in the Middle East, Africa and Southeast Asia, specialising in crude distillation, hydrocracking, catalytic reforming, coking and petrochemical integration.
Capabilities
What We Deliver
Feasibility & FEED
Concept screening, process selection and front-end engineering for new refineries.
Process Design
Heat and material balances, equipment sizing, simulation and optimisation.
EPC Management
Procurement, construction management and commissioning of refinery units.
Brownfield Revamps
Capacity expansion, technology upgrades and product quality improvement.
Operations Support
Technical advisory, troubleshooting and performance optimisation services.
Petrochemicals
Integration of olefins, aromatics and polymer units with refinery operations.
15+Refineries Served
1.2Mbpd Capacity
45+Process Units
3Continents
Why Al Nassar
Our Differentiators
Process Simulation
Rigorous simulation using HYSYS and PRO/II to optimise yields, energy consumption and product quality.
Energy Integration
Pinch analysis and heat exchanger network optimisation to maximise refinery thermal efficiency.
Grassroots & Revamp
New-build refinery EPC as well as capacity expansion and technology upgrading of existing units.
Operations Advisory
Embedded technical teams supporting day-to-day refinery operations, troubleshooting and KPI optimisation.
Methodology
How We Work
Feasibility & Concept
Technology selection, capacity planning, product slate definition and preliminary economics.
FEED
Process flow diagrams, P&IDs, equipment datasheets, plot plans and capital cost estimate 15%.
Detailed Engineering
Full IFC deliverable set, vendor document review and construction support.
EPC Execution
Procurement, construction management, pre-commissioning and commissioning.
Operational Readiness
Operator training, procedure writing, performance testing and KPI handover.
Standards & Certifications
Built to International Standards
Every Al Nassar project is executed under internationally recognised codes, standards and management systems. Our certification portfolio reflects a commitment to quality, safety and environmental stewardship that clients and regulators trust.
API RP 505ISO 9001ISO 14001IECEx Zone 1/2PED 2014/68/EU
Technology
Tools & Technologies
CDU / VDU
Atmospheric and vacuum crude distillation for primary product separation.
FCC / Hydrocracking
Catalytic cracking and hydrocracking for middle distillate maximisation.
Coking Units
Delayed and fluid coking for residue upgrading.
Hydrotreating
Sulphur removal from naphtha, kerosene, diesel and gas oil streams.
Reforming
Catalytic reforming for high-octane gasoline blendstock and hydrogen.
Amine & Sulphur Recovery
H2S absorption and Claus unit for sulphur product recovery.
Get Started
Optimise Your Refinery?
Speak with our process engineers about capacity expansion, revamps or operations support.
Other Services