Hydrotreating Unit
for Refinery Projects
Gelan helps refinery owners and EPC teams build, revamp, or replace hydrotreating units for low-sulfur fuels, catalyst protection, heat transfer reliability, and high-pressure hydrogen service.
We support system planning, engineering coordination, in-house equipment manufacturing, modular delivery, documentation, and installation guidance.
- Cleaner fuel production through sulfur, nitrogen, olefin, and metal removal
- Lower catalyst risk by reducing fouling, pressure drop, and feed contamination
- Reliable hydrogen service equipment with controlled materials, welding, and inspection
- Smoother project delivery with system coordination and documentation support
What Is a Hydrotreating Unit
A hydrotreating unit is a refinery process system that uses hydrogen and catalyst to remove sulfur, nitrogen, olefins, metals, and other impurities from oil streams.
It helps refineries produce cleaner fuels, protect downstream catalysts, reduce corrosion risk, and prepare feedstock for further upgrading.
Typical Hydrotreating Process
- Hydrogen and Feed Preparation
Feed quality, hydrogen supply, preheating, and filtration affect reactor stability and catalyst life. - Reaction and Heat Transfer
The reactor, heater, and feed/effluent exchanger must be matched to pressure, temperature, fouling tendency, and operating duty. - Separation and Product Handling
Hot/cold separators, stripping sections, and downstream interfaces affect product quality, water carryover, and catalyst protection.
Hydrotreating Project Risks Gelan Helps Reduce
Hydrotreating units are sensitive to catalyst fouling, heat transfer loss, salt corrosion, recycle gas quality, and downstream product requirements.
Gelan helps refinery owners and EPC teams reduce these risks through system coordination, high-pressure equipment manufacturing, and project delivery support.
Run Longer Before Catalyst Problems
Feed solids, rust, iron sulfide, and metals can increase reactor pressure drop, cause channeling, and shorten catalyst life.
How Gelan helps:
- Plans reactor-side equipment around feed cleanliness and pressure drop control
- Supports upstream filtration, feed heating, and reactor protection interfaces
- Manufactures high-pressure reactor vessels for hydrogen service
Keep Heat Transfer Closer to Design
Fouling, scale, salts, and heavy contaminants can lower exchanger and furnace efficiency, increasing energy use and coking risk.
How Gelan helps:
- Supports heat integration around furnace and feed/effluent exchangers
- Designs heat transfer equipment for fouling tendency and cleaning needs
- Controls furnace coils, tube bundles, welding, and pressure parts
Reduce Salt Corrosion and Fouling
Ammonia, chlorides, sulfur compounds, and water can form ammonium salts, causing fouling and corrosion in downstream equipment.
How Gelan helps:
- Coordinates water wash, drainage, separation, and low-temperature zones
- Supports material selection for sour, wet, or chloride-related service
- Manufactures separators, columns, and pressure vessels for refinery duty
Protect Product Quality and Downstream Units
Water or solid carryover can affect clean fuel quality and poison sensitive downstream catalysts in reforming, isomerization, or hydrocracking units.
How Gelan helps:
- Supports product separation and stripping equipment coordination
- Helps control water carryover and solid-related outlet risks
- Provides equipment support for hydrotreating pretreatment projects
Reduce System Interface and Delivery Risk
Hydrotreating projects involve many connected equipment packages. Late interface changes, missing documents, or poor fabrication coordination can delay installation and startup.
How Gelan helps:
- Supports system solution design and engineering coordination
- Provides modular fabrication and skid-mounted delivery support
- Coordinates drawings, inspection files, FAT records, and delivery documents
Hydrotreating Project Scenarios Gelan Supports
Gelan supports different hydrotreating unit projects with system solution design, engineering coordination, in-house equipment manufacturing, modular delivery, documentation, and installation guidance.
Diesel Hydrotreating Unit
Gelan supports system planning, equipment integration, fabrication, and delivery coordination.
Naphtha Hydrotreating Unit
Gelan helps coordinate hydrogen service equipment, separation sections, and downstream protection needs.
VGO Hydrotreating Unit
Gelan supports high-pressure system coordination, heat recovery planning, and integrated equipment manufacturing.
FCC Gasoline Hydrotreating Unit
Gelan supports compact layout planning, revamp-friendly fabrication, and installation guidance.
Kerosene and Distillate Hydrotreating Unit
Gelan supports separation, stripping, heat transfer, and delivery documentation.
Lube Oil Hydrotreating Unit
Gelan supports process equipment coordination, high-pressure fabrication, heat exchange, and separation sections.
Where Gelan Fits in Your Hydrotreating Unit Project
Hydrotreating projects require more than equipment supply. Gelan helps refinery owners and EPC teams connect system planning, fabrication, modular integration, revamp support, and custom engineering into one coordinated delivery path.
EPC Solutions
For hydrotreating projects that need system design support, engineering coordination, documentation, and delivery planning.
Modularization & Skid-Mounted Units
For projects that need factory integration, faster installation, and reduced site workload.
Plant Revamp & Modernization
For capacity upgrades, equipment replacement, shutdown maintenance, and reliability improvement.
Custom Engineering & Prototyping
For special feed conditions, compact layouts, hydrogen service, or non-standard interfaces.
Hydrotreating Unit Equipment Gelan Can Supply
A hydrotreating unit requires reliable reaction, heating, heat exchange, cooling, separation, stripping, and structural support. Gelan can manufacture key equipment according to project pressure, temperature, material, layout, and delivery requirements.
Reactor Pressure Vessel
Supports catalytic reaction under high-pressure hydrogen service.
Separator Vessel / Drum
Separates gas, liquid hydrocarbon, sour water, and reaction products.
Waste Heat Boiler
Recovers high-temperature waste heat and generates steam where required.
Related Refinery and Energy Solutions Supported by Gelan
Hydrotreating units often connect with upstream separation, residue upgrading, hydrogen supply, cooling utilities, and energy recovery systems. Explore related Gelan solutions for refinery, petrochemical, hydrogen, and energy projects.
Crude Distillation Unit
For primary crude separation before downstream refining, hydrotreating, and product upgrading.
Vacuum Distillation Unit
For VGO recovery and vacuum residue separation before FCC, hydrocracking, or hydrotreating.
Industrial Closed-Loop Cooling Water System
Cooling support for exchangers, condensers, and utility systems.
SOFC Power Generation System
Distributed power and hydrogen-based energy use for industrial sites.
FAQ About Hydrotreating Unit Projects
1. Can Gelan support a complete hydrotreating unit project?
Yes. Gelan can support hydrotreating unit projects with system solution design, engineering coordination, in-house equipment manufacturing, modular delivery, documentation, and installation guidance.
2. Is Gelan only a hydrotreating equipment supplier?
No. Gelan is not limited to single equipment supply. We can help coordinate the hydrotreating process around reactors, heaters, heat exchangers, separators, columns, heat recovery, skids, and site interfaces.
3. Can Gelan support hydrotreating unit revamp projects?
Yes. Gelan supports revamp, capacity upgrade, equipment replacement, shutdown maintenance, and modular delivery projects. We help reduce site rework through interface review, controlled fabrication, and delivery documentation.
4. What hydrotreating applications can Gelan support?
Gelan can support diesel hydrotreating, naphtha hydrotreating, VGO hydrotreating, FCC gasoline hydrotreating, kerosene and distillate hydrotreating, and lube oil hydrotreating projects.
5. Can Gelan manufacture equipment for high-pressure hydrogen service?
Yes. Gelan manufactures pressure equipment for demanding refinery service, with control over materials, welding, NDE, pressure testing, inspection records, and code documentation.
6. How can Gelan help reduce catalyst fouling and pressure drop risk?
Gelan helps coordinate reactor-side equipment, feed heating, separation, and upstream protection interfaces. This supports cleaner feed handling and more stable hydrotreating unit operation.
7. Can Gelan support modular delivery or short shutdown windows?
Yes. For revamp or fast-track projects, Gelan can support skid-mounted fabrication, in-factory assembly, FAT documents, and installation guidance to reduce site workload.
8. What information should we provide for a hydrotreating unit inquiry?
Please share your feed type, capacity, product target, operating pressure and temperature, hydrogen source, equipment scope, site layout, applicable standards, delivery schedule, and available drawings.
Discuss Your Hydrotreating Unit Project
Share your basic project requirements. Gelan will help review the scope and provide a practical proposal.