50 Years Of Trust | Engineering The Next Energy ERA
50 Years Of Trust | Engineering The Next Energy ERA
A technological marvel in FBC boilers — inbed heat recovery technology delivering the highest efficiency design in its class. Patented combustion engineering that achieves 85% thermal efficiency, 40% reduction in power consumption, and 25% reduction in footprint — simultaneously.
The ISOTEX Ecobloc Fluidized Bed Combustion (FBC) Steam Boiler represents a technological breakthrough in industrial steam generation — incorporating patented ‘inbed heat recovery’ technology that makes this boiler simply outstanding in its class.
Unlike conventional FBC designs, the inbed heat recovery achieves 85% thermal efficiency, 40% reduction in power consumption, and 25% reduction in footprint area — simultaneously delivering superior performance at lower operating cost.
The Ecobloc FBC boiler is a horizontal multitubular shell type, fire tube boiler with water-wall furnace and integrated FBC combustor — combining the best of fire tube efficiency with the multi-fuel flexibility and high combustion efficiency (>98%) of fluidized bed technology.
Designed for industries requiring reliable, high-efficiency steam generation from a wide range of solid fuels — including difficult low-grade fuels, high-ash fuels, and agricultural biomass waste.
PATENTED TECHNOLOGY“Inbed Heat Recovery”
Cooling coils embedded directly within the fluidized bed combustor extract heat at the highest-temperature combustion zone — the fundamental design advantage that makes the Ecobloc the most efficient FBC boiler in its class.
ISOTEX Ecobloc FBC Steam Boilers are available up to 30 TPH, covering the full range of medium to large industrial steam requirements with consistent 85% thermal efficiency across all capacity options.
| Parameter | Value / Range | Unit |
|---|---|---|
|
Steam Output Capacity |
Up to 30,000 |
kg/hr |
|
Design Pressure Range |
Up to 26 |
kg/cm²(g) |
|
Thermal Efficiency |
Up to 85% |
On NCV Basis |
|
Combustion Efficiency |
>98% |
FBC fluidized bed |
|
Dryness Fraction |
>98% |
FBC Fluidized Bed |
|
Boiler Type |
Horizontal Multi-tubular |
Fire tube + water-wall furnace |
|
Combustion System |
FBC — Fluidized Bed |
Inbed heat recovery |
|
Fuel Flexibility |
Multi-fuel |
Coal, biomass, agro-waste |
|
Standard Emission Control |
Multi-cyclone dust collector |
Bag filter / wet scrubber optional |
Highest Efficiency in Class
Combustion Efficiency
Dryness Fraction – Guaranteed
Boiler Type | Thermal Eff. | Combustion |
|---|---|---|
Ecobloc FBC (ISOTEX) | 85% | >98% |
Conventional FBC | 80% | 90–95% |
Grate-Fired Boiler | 75% | 85–90% |
The Ecobloc FBC system uses fluidizing bed media (sand) to catch flying-away unburnt fuel particles — giving sufficient time for complete combustion and distributing heat evenly throughout the combustion area. This results in >98% combustion efficiency and the unique ability to efficiently burn fuels that challenge conventional grate-fired boilers.
Why FBC handles fuels conventional boilers cannotThe FBC Difference
- Burns high-fines and low-grade fuels with high ash content
- Fast load response like oil-fired systems — high bed turbulence
- Very low maintenance — no moving grate components
- >98% combustion efficiency — complete burn before fuel exits
- Consistent performance across fuel quality variations
NCV 5,300 kCal/kg
NCV 3,000–4,500 kCal/kg
High-silica agro-waste
NCV 3,500–4,500 kCal/kg
~4,200 kCal/kg
Low ash content, high combustion temperature — excellent FBC fuel near coconut processing regions.
~4,200 kCal/kg
High-calorific agro-waste from Gujarat and Andhra Pradesh — excellent low-ash biomass fuel.
The Ecobloc introduces patented inbed heat recovery technology and advanced FBC combustion engineering that surpasses every conventional alternative in efficiency, fuel flexibility, and long-term reliability.
Built to perform. Proven in the field. Real Isotex FBC Steam Boiler installations showcasing proven capability across industries. All of them used indonesian coal
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Our engineering team responds within 24 hours. Share your capacity requirements and fuel preference. We’ll engineer the right solution.
