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Tubular Furnaces

4 days EMT/FURNDES
Level
Advanced
Audience
  • Project or process control engineers in refineries or petrochemical plants, involved in furnace design and performance follow-up.
Purpose
  • To provide in-depth knowledge of critical design rules for tubular furnaces used in the petroleum and petrochemicals industries.
Learning Objectives
  • To list the main industrial issues of furnace technology, operating conditions and constraints.
  • To structure process data and define key criteria for furnace design.
  • To identify pollution sources and ways to reduce emissions.
Ways and means
  • Course delivered by IFP Training experts and furnace design engineers from Heurtey Petrochem SA.
  • Case study used throughout the course to design the main characteristics of radiant and convection zones.

FURNACE TECHNOLOGY 1 day
  • Different types of furnaces and selection criteria.
  • Furnace construction and design codes. Heat Distribution & Furnace efficiency.
  • Process conditions: fluid characteristics, operating conditions, required efficiency.
  • Consequences on the furnace technology and tube coil material.
  • Insulating material: main characteristics, installation and use.
BURNERS - ENERGY CONSUMPTION - POLLUTANT EMISSION 0.5 day
  • Efficiency of tubular furnaces: design and operating parameters. Different types of burners, selection criteria, combustion performance and flame length. Impact on fuel consumption and operating costs. Pollutant characteristics: Impact of fuel quality and operating conditions on pollutant emissions. Scope for reducing emissions (CO2, NOx, SOx, particulates).
CONSTRAINTS AND DESIGN RULES 1.5 days
  • Process study: furnace type selection.
  • Process data: process and auxiliary fluids (water-steam, etc.), operating conditions, efficiency, furnace duty, allowable heat losses, process constraints (coke formation, thermal degradation, etc.).
  • Fuel selection: combustion mass and heat balance.
  • Heat exchange area calculation: heat transfer in the radiant and the convection zone, mean/maximum heat flux.
  • Tube skin temperature and flue gas temperature estimate.
SAFETY DEVICES - OPERATION 1 day
  • Construction codes and rules relating to safety (peepholes, explosion doors, access, fire protection).
  • Safety and control system on tube coil. Operating constraints.
  • Safety specifications on heaters, combustion, fuel circuits.
  • Air and flue gas circulation: natural and forced draft, control and safety system.
  • Recommendations for a Safe & Reliable operation