Heater in Refinery

Heater in Refinery

Process heaters are critical equipment in refinery units such as atmospheric and vacuum distillation, hydroprocessing, catalytic reforming, and coking. GYRO custom-designs heaters based on heat load, fluid properties, and operating conditions, and provides equipment manufacturing, installation, and EPC services.
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Description
Technical Parameters

Process heaters are critical equipment in refinery units such as atmospheric and vacuum distillation, hydroprocessing, catalytic reforming, and coking. GYRO custom-designs heaters based on heat load, fluid properties, and operating conditions, and provides equipment manufacturing, installation, and EPC services.

 

Heater In Refinery Uses

 

 

Refinery Unit

Heater Application

Main Purpose

Crude Distillation Unit (CDU)

Crude Oil Heater

Heat crude oil before atmospheric distillation

Vacuum Distillation Unit (VDU)

Vacuum Heater

Heat reduced crude under vacuum conditions

Hydrotreating Unit

Feed Heater

Heat hydrocarbon feed before reaction

Hydrocracking Unit

Charge Heater

Heat feed to required reactor inlet temperature

Catalytic Reforming

Charge Heater

Heat feed before catalytic reaction

Delayed Coking Unit

Coker Heater

Heat heavy feed before entering coke drums

Stabilizer Unit

Reboiler / Process Heater

Provide heat for separation and stabilization

Sulfur Recovery Unit

Process Heater

Provide controlled heat for sulfur recovery processes

 

Refinery Heater Parameters

 

 

Parameter

Typical Range

Heater Type

Vertical Cylindrical / Cabin / Box / Multi-Cell

Firing Type

Natural Draft / Forced Draft / Balanced Draft

Process Duty

5–150 MW

Design Pressure

Vacuum to 15 MPa

Design Temperature

Up to 600°C

Process Outlet Temperature

150–500°C

Radiant Section

Radiant Coil + Burners

Convection Section

Convection Coil / Steam Coil / Air Preheater

Tube Material

Carbon Steel / Cr-Mo Steel / SS304 / SS316 / SS321 / Nickel Alloy

Refractory Material

Ceramic Fiber / Castable / High-Alumina Refractory

Fuel

Natural Gas / Refinery Fuel Gas / Fuel Oil / Dual Fuel

Burner Type

Low-NOx / Conventional / Dual-Fuel Burner

Control System

PLC / DCS / SIS Integration

Design Standard

API 560 / API 530 / ASME / Customer Specification

 

How Do You Choose Between Different Heater Designs For A Refinery

 

 

Heater Configuration

Best Fit

Main Advantage

Main Consideration

Vertical Cylindrical

Small to Medium Duty

Compact footprint

Limited radiant capacity

Cabin Heater

Medium to Large Duty

Large heating surface

Larger footprint

Box Heater

Large Process Duty

Flexible coil arrangement

Higher fabrication complexity

Multi-Cell Heater

High Duty / Critical Service

Better heat distribution

Higher initial investment

The specific furnace type is determined based on factors such as heat load, plant site space, properties of the process medium, combustion method, and future capacity expansion requirements. Common API 560 furnace types include vertical cylindrical, cabin, and box heaters; the choice of furnace type is closely linked to heat load, the process medium, and site constraints.

 

Example of Option Comparison

 

 

Item

Basic Configuration

Optimized Configuration

Process Duty

20 MW

20 MW

Combustion Air Preheating

No

Yes

Waste Heat Recovery

Limited

Integrated

Flue Gas Heat Utilization

Low

Higher

Fuel Consumption

Higher

Lower

Operating Cost

Higher

Reduced

Initial Investment

Lower

Higher

Long-Term Economic Value

Moderate

Higher

 

Manufacturing Process for Refinery Heaters

 

Heater Body

Following the cutting, assembly, and welding of the steel structure, dimensional inspections are conducted to ensure the structure meets design specifications.

Heater Tubes

Tube bending, assembly, welding, and non-destructive testing are performed in accordance with design drawings.

 

Tube Supports

Installation positioning and thermal expansion clearances are strictly controlled to prevent abnormal stresses during high-temperature operation.

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Refractory Lining

Materials such as ceramic fiber and refractory castables are selected based on furnace operating temperatures; installation thickness and the furnace dry-out procedure are strictly controlled.

Burners

Following installation, checks are performed on positioning, orientation, and flame coverage to ensure the flame does not directly impinge upon the heater tubes.

 

What are GYRO's capabilities?

 

 

GYRO provides services tailored to project requirements, including:

Process Design→Thermal Calculation→Mechanical Design→Heater Fabrication→Burner / Control System Integration→Factory Inspection→Site Installation→Commissioning Support→EPC Project Execution

For comprehensive refinery projects, GYRO also offers integrated design and manufacturing services for associated equipment such as towers, heat exchangers, reactors, and pressure vessels.

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Quality Control and Project Documentation

 

 

In accordance with project requirements, we can provide the following:

  • Material Certificates
  • Welding Procedure Specifications
  • Welder Qualification Records
  • NDT Reports
  • Hydrostatic / Pressure Test Records
  • Dimensional Inspection Reports
  • Refractory Inspection Records
  • Burner Inspection Records
  • Factory Acceptance Test Documentation
  • As-Built Drawings
  • Operation & Maintenance Documentation

 

We also accommodate third-party inspections and on-site client acceptance.

If you are sourcing a refinery heater, we do not recommend comparing prices based solely on the required thermal duty (MW rating).

Please provide us with the following information:

Process fluid, flow rate, inlet/outlet temperatures, operating pressure, required duty, and fuel type.

Based on these details, ZIBO GYRO can evaluate the heater type, tubes, burners, radiant and convection sections, and waste heat recovery options. We can then provide solutions ranging from individual equipment units to complete packages or full EPC (Engineering, Procurement, and Construction) services, tailored to the project scale.

Finalizing the thermal design before discussing equipment pricing is far more cost-effective than purchasing a heater that has a low initial price but high operating costs.

 

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