Up to 125 TPH
NRSW Scheduled Waste & Sludge Fired Boilers

Non-Recyclable Solid Waste (NRSW) / Scheduled Waste & Sludge Fired Boilers

Designed for sustainable combustion of challenging and extremely heterogeneous waste fuels

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TBWES NRSW-fired boilers efficiently convert non-recyclable solid waste, scheduled waste, and sludge into energy, ensuring safe disposal and reliable power generation.

Engineered with inclined reciprocating grate combustion systems and robust thermal recovery, these boilers ensure optimal performance despite variable waste quality of the extremely heterogeneous NRSW wastes while guaranteeing maximum and consistent steam output. Advanced emission controls minimise environmental impact, making them highly suitable for industries seeking landfill diversion, energy self-reliance, and compliance with circular economy goals.

Technical data

  • Product capacity / performance range –

    • Capacity range: Up to 125 TPH

    • Pressure: 15 to 70 kg/cm²(g)

    • Temperature: Up to 430°C

  • Fuel type or energy sources – Non-recyclable solid waste (NRSW), industrial scheduled waste, sludge

  • Compliance or standards followed – ASME, IBR, EN, PED, PESR

  • Design – 

  • Single-drum and bi-drum options

    • Multi-pass design

    • Step grate combustion technology

    • Combustion system: Reciprocating grate technology with special refractory

    • Vertical & horizontal models

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

  • Other technical information – 

    • Specially designed combustion & feeding system to accommodate a wide range of net calorific values

    • The furnace is sized for complete combustion, carryovers, and also to ensure proper residence time of 
      2 sec at >850°C for complete combustion of fuel and to decompose the dioxin/furans

Product features

Modularised design for minimal on-site setup
Enables fast installation with minimal on-site assembly, reducing erection time and project complexity
Inclined reciprocating grate combustion technology
Ensures superior combustion and ash management for diverse waste streams, effectively handling varying calorific values, irregular shapes and sizes through continuous mixing
Optimised pressure part design
Features corrosion-resistant pressure part design and specialised metallurgy, ensuring long-term operational integrity
Specialised refractory engineering
Incorporates fuel-optimised refractory engineering for enhanced material durability and prolonged boiler service life
Integrated flue gas cleaning system
Removes harmful substances and control particulate emissions through circulating dry scrubbing and bag filter
Significant lifecycle cost reductions
Reduces operational expenses by eliminating various waste handling costs
Intelligent combustion control
Automated and digitally enabled control logic precisely manages combustion of multiple waste types
Up to 81% on NCV Up to 430 °C 10 to 70 kg/cm²(g)
Up to 200 TPH
WHRB in Coke Calcination Plant

WHRB in Coke Calcination Plant

Pioneering waste heat recovery solutions for coke calcination plants, converting wasted thermal energy into valuable resources

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Coke calcination involves high-temperature treatment of petroleum coke, emitting substantial waste heat. TBWES WHRBs installed in the flue gas stream recover this heat to generate steam. 

The steam supports power generation or plant operations, enhancing energy recovery and reducing environmental impact. This results in lower operational costs and a cleaner, more sustainable calcination process.

Technical data

  • Product capacity / performance range - 

    • Capacity: Up to 200 TPH

    • Pressure: Up to 130 Kg/cm2(g)

    • Temperature: Up to 540°C

  • Heat sources - Flue gases from coke calcination kilns

  • 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

Integrated soot blowing system
Ensures clean heat transfer surfaces and efficient operation
Water wall panel construction
Robust design in first and second pass for effective heat absorption
Modular site / port assembly
Facilitates faster, efficient installation with modular construction
Horizontal and vertical configurations
Available in both orientations to suit site requirements
Up to 540°C 10 to 70 kg/cm²(g)
Up to 200 TPH
Waste Heat Recovery Units (WHRU)

Waste Heat Recovery Units (WHRU)

Engineered to efficiently recover waste heat from the exhaust of gas turbines using heating media such as a water-glycol mixture, thermal oil and water depending on the application

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TBWES WHRU are designed to install on offshore platforms, floating vessels such as FPSOs, FPUs, FLNGs etc. and Onshore terminals including oil & gas and other process plants.

A unique offering is our specially designed integral bypass system configuration, which allows for greater flexibility and performance. These units feature a compact, space-saving design with a small footprint and are often built as removable-type systems, preferred for ease of maintenance. Depending on the customer requirement, units can be configured vertically or horizontally. TBWES WHRUs are registered with major oil and gas companies globally.TBWES WHRUs are operating successfully across a wide range of onshore as well as offshore locations including FPSOs around the world, including Sakhalin Island, Asian Offshore Waters, North Sea, African Offshore, The Middle East Offshore and the Americas. 

Technical data

  • Product capacity / performance range –
    • Capacities: Up to 135 MW
  • Fuel type or energy sources –
    • Energy source: Gas turbine exhaust gas
  • Compliance or standards followed – ASME, API, TRCU, PED, NORSOK, NR-13, DOSH, ARH
  • Design –
    • Supported heating media: Water, water-glycol mixture, thermal oil, regen gas
    • Integral bypass and external bypass design
    • Removable bundle design option
    • Vertical gas flow and horizontal gas flow
    • Optimised gas side pressure loss
    • Online WHRU isolation
    • Shop-modularised or site-assembled
  • Flexibility or customisation options
    The product can be customised based on customer requirements or scale
  • Other technical information
    • In-house thermal and mechanical design
    • In-house manufacturing with finning capability
    • In-house assembly / modularisation capability

    Thermax
    Manufactured as per technology developed by Thermax

Product features

Removable tube bundle on demand
Ensures easy maintenance, a key feature that simplifies upkeep and minimizes downtime. This design ensures that the system can be serviced efficiently, whenever needed.
Flexible assembly & delivery
Units can be shop or site assembled to best suit transportation logistics and minimise on-site requirements, simplifying installation and reducing project complexity
Space-saving design
Our designs prioritise a compact, space-saving footprint, optimising facility layout and maximising valuable operational space
Integral bypass facility
Units feature an integral bypass facility that enables efficient, flexible operation and enhances control and adaptability to varying demands
Online WHRU isolation
Enables maintenance or inspection without disrupting the entire system, ensuring continuous operation and minimal downtime
Optimised gas side pressure loss
Our designs ensure optimum gas side pressure loss, maximising efficiency and minimising energy consumption, thereby contributing to a more cost-effective and environmentally friendly operation
Up to 540°C 10 to 70 kg/cm²(g)
Up to 200 TPH
Coal Gasification Plant

WHRB in Coal Gasification Plant

WHRBs extract waste heat from hot syngas in coal gasification units to produce steam efficiently

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We are pioneers in waste heat recovery for coke calcination plants, developing innovative solutions that capture and convert wasted thermal energy into valuable resources.

Coal gasification involves converting coal into syngas at high temperatures. The process emits high-temperature gases, and WHRBs are installed to capture this heat for steam generation. This steam is used for power generation or plant operations, significantly improving energy utilisation, reducing emissions, and enhancing overall process efficiency in integrated gasification combined cycle (IGCC) plants.

Technical data

  • Product capacity / performance range - 

    • Capacity: Up to 200 TPH

    • Pressure: Up to 130 Kg/cm2(g)

    • Temperature: Up to 540°C

  • Energy Sources - Heat source: Hot syngas or raw gas cooling stream

  • 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

Modular site / port assembly
Facilitates faster, efficient installation with modular construction
Horizontal configuration & natural circulation design
Ensures reliable operation with simplified flow and maintenance
Water wall panel construction
Enhances heat absorption and protects boiler structure from high temperatures
Hammering arrangement
Enables effective cleaning of heat transfer surfaces for sustained efficiency
Up to 540°C 10 to 70 kg/cm²(g)
Up to 200 TPH
WHRB in Coke Oven/ Coke Dry Quenching Plant

WHRB in Coke Oven/ Coke Dry Quenching Plant

WHRB recovers heat from hot coke oven gases, improving energy efficiency and steam generation

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TBWES offers waste heat recovery boilers for non-recovery coke oven plant and recovery type coke dry quenching plant applications

The WHRBs capture thermal energy from high-temperature coke or quenching gases. This recovered heat is used to produce steam for power generation or plant utilities. Our WHRBs enhance energy efficiency, reduce emissions, and lower fuel costs, making them a critical component in sustainable coke production processes.

Technical data

  • Product capacity / performance range - 

    • Capacity: Up to 200 TPH (for coke dry quenching)

    • Pressure: Up to 130 Kg/cm2 (g)

    • Temperature: Up to 540°C

  • Energy sources - Heat source: Flue gases from red-hot coke during the dry quenching process

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

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

  • Design – 

    • Horizontal and vertical designs, tailored to space and process requirements

    • Site / port assembly with modularised constructions

  • Other technical information 
    Boiler-Turbine-Generator (BTG) package can be offered on a case-by-case basis

  • Applications: 

    • Non-recovery coke oven plant

    • Recovery-type coke dry quenching plant

Product features

Integrated soot blowing system
Ensures effective removal of soot deposits, maintaining heat transfer efficiency and uninterrupted operation
Modularised site or port assembly design
Allows for faster erection, ease of transportation, and reduced installation time at the project site
Natural or Forced Circulation Design
Ensures optimal adaptability to process parameters and improving reliability in coke dry quenching operations.
Water Wall Panel Construction in the 1st / 2nd Passes
Provide robust heat absorption, improved thermal efficiency, and enhanced structural integrity.
Gas-tight Membrane Panel Construction and Single-Shaft Design
Engineered to handle highly abrasive dust, ensuring the system's longevity and integrity.
Compact and Efficient Heat Exchange
Combination of bare tube and extended surface (WSG or helical fins) design of the evaporator and economizer creates a compact unit without compromising heat transfer efficiency.
Up to 540°C 10 to 70 kg/cm²(g)
Up to 300 TPH
FlexiSource™

FlexiSource™ Boilers

Single solution addressing needs for waste disposal and renewable based combined heat and power

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FlexiSource™ offers unparalleled flexibility in sourcing a wide variety of waste fuels, ensuring high reliability, availability, and efficiency.

TBWES FlexiSource™ Waste to Energy boilers feature automated, digitally enabled control logic that precisely manages combustion for 140+ varied waste fuels, including non-recyclable solid waste (NRSW), refuse derived fuel (RDF), municipal solid waste (MSW), and agro-waste. This provides high flexibility to efficiently source and utilise diverse green fuels and wastes, ensuring optimal and eco-friendly disposal. The steam generated can then be seamlessly used for process heat or captive power, optimising resource recovery.

Technical data

  • Product capacity / performance range –

    • Capacity range: Up to 300 TPH

    • Pressure: Up to 70 kg/cm²(g)

    • Temperature: Up to 495°C, depending on fuel mix

  • Fuel type or energy sources – Non-recyclable solid waste (NRSW), refuse-derived fuel (RDF), agricultural waste, biofuels, biomass and other available fuels

  • Compliance or standards followed – ASME / IBR / EN / PED / PESR

  • Design – 

  • Single-drum and bi-drum options

    • Single-pass & multi-pass designs

    • I-step grate combustion technology

    • Vertical & horizontal models

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

  • Other technical information – 

    • Specially designed combustion and feeding system to accommodate a wide range of net calorific values, ranging from 1400-4,000 kcal/kg, moisture content up to 60%, with irregular fuel sizes ranging from 50 to 1000 mm
    • Integrated flue gas treatment system with scrubbers, bag filters and ESPs as applicable

Product features

Modularised design for minimal on-site setup
Enables fast installation with minimal on-site assembly, reducing erection time and project complexity
Multi-fuel compatibility
Tried & tested expertise for combustion of more than 140 varied fuels
Modern furnace design
Tall furnaces with second generation secondary air jets for ensuring complete combustion of volatiles
Multi-feeding locations in furnace
Coordinated multi-feeding locations in the furnace ensure optimum heat release rates
Integrated flue gas cleaning system
Removes harmful substances and controls particulate emissions through advanced dry/semi-dry scrubbing, utilising lime and activated carbon
Significant reduction in waste volume
FlexiSource™ boiler achieves up to a 90% reduction in initial waste material volume
Exceptional efficiency
Achieves up to 81% efficiency on NCV
Significant lifecycle cost reductions
Reduces operational expenses by eliminating various waste handling costs
Intelligent combustion control
Automated and digitally enabled control logic precisely manages combustion of multiple waste types
Up to 81% on NCV Up to 495 °C 10 to 70 kg/cm²(g)
Subscribe to 10 to 70 kg/cm²(g)

Registered Office Address

D-13, MIDC Industrial Area,
R. D. Aga Road, Chinchwad,
Pune 411019, Maharashtra, India

Corporate Office Address

Thermax Limited
Thermax House,
14 Mumbai-Pune Road, Wakdewadi,
Pune 411003, Maharashtra, India

Corporate Identity Number

L29299PN1980PLC022787

Toll Free Number

1800-209-0115

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