Up to 130 TPH
WHRB in Chemical Plant

WHRB in Chemical Plant

TBWES WHRBs are a leading solution for chemical plants, converting process waste heat into valuable steam or power, improving efficiency, and reducing emissions

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TBWES has proven expertise in designing, supplying and installing waste heat recovery boilers for chemical plants. It can offer a WHRB boiler for a number of applications, like sulphuric acid plants, nitric acid plants, dichromate plants, caprolactam plants, etc.

Chemical plants often release heat through exothermic reactions and flue gases. WHRBs harness this energy to produce steam, improving plant energy efficiency and reducing fuel usage. The recovered steam supports various process needs or power generation. These systems lower operational costs and emissions, aligning with sustainability goals and enhancing overall plant performance. In sulphuric acid plants, our WHRBs are designed to handle gas-side operating pressures as high as 5,000 mmWC, which calls for special construction of economiser and superheater. The steam generated by the boiler is used for melting sulphur and driving the main air blower. Our WHRBs in the nitric acid plant are designed to suit both low-pressure and high-pressure systems.

Technical data

  • Product capacity / performance range

    • Capacity: Up to 130 TPH

    • Pressure: Up to 90 Kg/cm2 (g)

    • Temperature: Up to 520°C

  • Heat sources - Process off-gases or reactor flue gases with high thermal content

  • Compliance or standards followed – ASME / IBR / TRCU / PED

  • Flexibility or customisation options – The product can be customised based on customer needs or scale

  • Design

    • Natural circulation fire-tube boilers

    • Forced circulation water-tube boilers

Product features

High-pressure handling
Proven experience with gas-side operating pressures up to 6000 mmWC
Specialised heat exchanger design
Economiser and superheater built for high-pressure conditions
Corrosion-resistant economiser
Cast iron gilled ring design prevents sulphur corrosion
Complete system supply
Includes boiler, superheater, and economiser for a full solution
Precise temperature control
Gas outlet temperature regulation at each equipment ensures optimal acid gas conversion
Low or high-pressure systems
Suitable for both low-pressure and high-pressure nitric acid plant operations
Flexible boiler types
Supports natural circulation fire-tube or forced circulation water-tube boilers
Integrated NH₃ burner
Ammonia burner is typically included as part of the unit
Gas-tight, stainless-steel construction
Ensures durability and leak-free operation
Heating coils
Prevent dew point corrosion in critical areas
Wall cooling coils
Protect the shell from thermal stress and overheating
Lamont nozzles
Ensure uniform water distribution within the coils for efficient heat transfer
Up to 520°C Up to 90 kg/cm²(g)
Up to 130 TPH
WHRB in Carbon Black Plant

WHRB in Carbon Black Plant

TBWES' WHRBs capture the intense heat from the reactor off-gas in a carbon black plant, turning a wasted byproduct into useful, high-pressure steam

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The carbon black manufacturing process releases hot tail gases rich in thermal energy.

Our WHRBs are installed to recover this heat and produce steam for process use or electricity generation. These systems enhance overall plant efficiency, reduce emissions, lower operating costs and contribute to sustainable operations, making them a crucial component of energy optimisation in carbon black production facilities.

Technical data

  • Product capacity / performance range

    • Capacity: Up to 130 TPH

    • Pressure: Up to 90 Kg/cm2 (g)

    • Temperature: Up to 520°C

  • Heat Source - Lean CO-rich flue gases from the carbon black furnace

  • Compliance or standards followed – ASME / IBR / TRCU / PED

  • Flexibility or customisation options – The product can be customised based on customer needs or scale

Product features

NOx reduction methodology
A combination of low NOx burners, air and fuel staging, and flue gas recirculation (FGR) minimises NOx formation, with SNCR and SCR DeNOx systems implemented for further control to ensure compliance with emission norms
Externally fired combustion chamber
Ensures complete combustion of tail gases for efficient heat recovery
No auxiliary fuel required
Operates independently under normal conditions, reducing fuel costs
Radiant superheater design
Achieves rated superheat temperature across a wide turndown range
Feed water preheating
Maintains temperature above sulphuric acid dew point to prevent corrosion
Membrane panel side walls in convection section
Enables a refractory-less design for improved reliability and reduced maintenance
Boiler feed water pre-heater
Preheats water before the economiser to prevent tube corrosion
Plain tube economiser
Designed to avoid gas-side choking and ensure smooth heat transfer
Up to 520°C Up to 90 kg/cm²(g)
Subscribe to Up to 90 kg/cm²(g)