CiTECH Energy Recovery Systems - Designers and Suppliers of CiBAS, Waste Heat Recovery Units and Once Through Steam Generation Packages

Overview

Our range of Waste Heat Recovery Units has been developed and refined over the years to encompass:

• A compact serpentine finned tube bundle (serated optional) optimised to the process requirement

• Lined coil casing limiting external surface temperatures to approximately 68 Degrees C compliant with ATEX requirements where necessary

• Integral Bypass system ensuring a compact arrangement

• Dampers or Divertor valve for gas flow through the coil casing or bypass as required with pneumatic actuation system reservoir and interface control

• Inlet volute

• Outlet volute

• Support structures, platforms and ladders are optional

• Coil & casing materials provided to meet project requirements

• Equipment compliant with ASME VIII requirements

• Pre-assembled units can be supplied to suit project needs

Alternatively our Hot casing design can be proposed for use in Non hazardous locations

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Waste Heat Recovery Units

Our population of Waste Heat Recovery Units packages extends to over 200 units , the majority being installed offshore the balance onshore in refinery & land fall installations

Solutions encompass:

• Integral Bypass internally lined cold casing designs, originally developed for the harsh environment of the North Sea offering a rugged compact construction  

• A lighter weight hot casing derivative of the Proven cold casing design where weight and
pre-packaging are pre-requisite

• Units are installed on board fixed platforms, semi submersibles and FPSO installations of differing design, the applications they are used for include:

• Heating transfer oils
• Water or Water Glycol
• Crude Oil
• Regeneration gases
• Natural gas

Our single largest heat recovery package is over 100 Mwth, our most recent installation of 5 packages provides over 210 MWT of heat to an LNG process.

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Fired Heaters

Alstom has over a period of years supplied more than 500 fired process heaters, the largest being over 400 Mw. Continuing in this development we have now  employed the use of our CiBAS constructional & coiling techniques in a natural extension to our Fired Heater range.

Our fleet population has grown to in excess of 500 units comprising:

• Vertical upshot units
• Convective packages
• Cabin Heaters

Our reputation for delivering heaters for unusual applications has resulted in heating the following products

• Air / Hydrogen / Natural Gas / Nitrogen / Oxygen / Steam / Ethane

• Benzene / Butane / Crude Oil / Ammonia / Methanol / Naptha

• Oil heating medium / Tar / Titanium Tetrachloride / Water-Glycol

Our latest steam super heater was rated at 45 Mw, raising 150 tonnes per hour of steam at 130 Bar, 520 °C.

Our current Fired heater design rated at 42 Mw supplies Hot oil. The overall efficiency is 93% and the package is equipped with an ultra low Nox combustion system operating Sub 15 ppm/vol

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Air Recuperators

Recovering heat from a process system is an acceptable method in the pre-heating of air. Recovery temperatures vary; our radiation recuperators have been supplied to recover up to 800 °C from furnace exhaust temperatures of 1450 °C.

Where exhaust gas temperatures are lower (sub 900 °C), convective recuperators can be used as the radiant propert of gas diminishes.

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