Case history: INDIRECT HEAT EXCHANGERS - ATEX

INDIRECT HEAT EXCHANGERS - ATEX

DESCRIPTION

Indirect heat exchangers designed, built and assembled specifically for a large oil refinery plant in North Africa. A special Amarc project to meet the customer’s different heating needs within high engineering industrial processes. In particular, the need to heat the raw material contained in the storage drum was solved through the installation of 3 indirect electric heat exchangers, inserted inside the tank through a sleeve in order to facilitate maintenance of the heater without having to empty the tank. Amarc has also developed a control system for the intermediate heating fluid (Torada TC 32 diathermic oil). An interesting feature is the fuel-gas preheater, designed by AMARC engineers to reach a flow rate of 27500 Kg/h, reaching a power of 700 kW.

TECHNICAL DATA

YEAR: 2011
 
LOCATION OF THE PLANT: North Africa
 
FIELD OF APPLICATION: Refining
 
PRODUCT DESCRIPTION: Series of indirect heat exchangers
 
PROCESS DESCRIPTION: Heating of hydrocarbons and gas in a refinery plant
FLOW RATE: (Fuel Gas Pre – Heater) 27500 Kg/h
 
POWER:     700 kW (Fuel Gas Pre – Heater)
 
                     70 kW (3xHot Oil Storage Tank Heater)
 
                     32 kW (1xHot Oil Expansion Drum Electric Heater)
 
                    185 kW (2xCold HP Flare KO Drum Heater)
 
                    185 kW (2xCold Drains Drum Heater)
 
OUTLET TEMPERATURE: 50°C (Fuel Gas Pre - Heater)
 
VESSEL MATERIAL: Carbon Steel A333 GR6, Stainless steel A312 TP316 for other exchangers
 
DESIGN CODE:  ASME VIII div. 1