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HomeApplicationsSpent Acid Regeneration Units

Spent Acid Regeneration Units

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SPENT ACID REGENERATION

Heat recovery in spent acid regeneration units.

Spent sulphuric acid from alkylation and other processes is decomposed at high temperature and made new. The gas that comes out of the furnace is where the plant's steam comes from, and our boiler is on it, including one of the world's largest operating installations.

Where the heat is

Spent acid is thermally decomposed in a furnace into sulphur dioxide, water and oxygen at high temperature. The gas is cooled in a waste heat boiler that raises high-pressure steam, then cleaned and converted back to sulphuric acid in a conventional contact section. The boiler sees a gas that is hot, wet and acidic, and that fouls.

What the boiler has to do

  • Resist the acid dew point of a wet SO2 gas
  • Stay clean under fouling deposits, with provision for online or self-cleaning
  • Corrosion-resistant construction, with materials such as stainless steel where the gas demands it
  • Components such as filters, heat exchangers, pumps and scrubbers included as the unit needs
  • Modular or single-piece design, depending on need
  • Economiser and superheater stages to complete the steam system

What we supply

  • Process gas waste heat boilers for spent acid regeneration units
  • Economisers and superheaters
  • The boiler on a 1,000 TPD unit, one of the world's largest in operation

Our Industrial Products

Process Gas Boilers

The decomposition gas boiler.

Industrial Heat Exchanger with Vibrant Piping

Economisers

Feed water heating from the last useful gas heat.
Industrial Heat Exchanger Plant Under Blue Skies

Superheaters

Steam temperature for the turbine.

Thermal Systems provides efficient Waste Heat Recovery Boilers for Spent Acid Regeneration Units (SARUs)

  • World’s largest installation on 1000 TPD SARU

  • Provision for Online Cleaning

  • Special design for easy overseas transportation & assembly

India’s only manufacturer for Waste Heat Boiler in SARU plant with largest installation globally on a 1000 TPD Plant

Waste Heat Recovery Boilers

For Spent Acid Regeneration Unit (SARU)

The manufacturing of SARUs varies depending on the specific unit and the process it is intended for. In general, the units are made from corrosion-resistant materials such as stainless steel, and they may include components such as filters, heat exchangers, pumps, and scrubbers. The manufacturing process typically involves the assembly of these components into a single unit, with the specific design determined by the type of spent acid being regenerated and the desired output. The manufacturing process may also include quality control testing and validation of the unit’s performance.

It is important to note that the regeneration of spent acids can be a complex process and should be performed by trained professionals using properly designed and maintained equipment.

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