Our Boilers

RENTECH boilers are custom designed for each unique application. If your project requires a boiler, heat recovery steam generator, wasteheat boiler, fired packaged watertube boiler or other specialty boiler, you can depend on RENTECH to deliver a complete engineered solution.

Fired Packaged Watertube Boilers

RENTECH BOILER SYSTEMS is the industry leader in direct fired boilers. RENTECH offers designs based on application and operating conditions, including a full range of custom-designed direct fired packaged boiler systems to meet the most demanding project requirements.

Design Features

Available for steam capacities up to 500,000 lbs/hr, 1800 PSIG and 1000°F
Factory assembled natural circulation water tube designs
Completely drainable convective superheater operates at lower gas side temperatures, which extends superheater life
Two-stage convective superheaters dramatically improve performance over turndown
Conservative steam drum sizing (employs chevron vane separation technology that minimizes moisture carryover)
Design features to accommodate high cycling operation
100% membrane wall fabrication provides a fully water-cooled furnace with zero gas by pass and inherently lower emissions
No use of refractory walls or refractory seals
Custom-engineered design for each application
Elevated drums can be provided to accommodate project requirements
Five year warranty on our headered front and rear membrane walls
Integrated SCR and CO systems for single source responsibility

Membrane Construction

Waterwall technology used in all designs
Saturated or superheated steam application
Reduces operating costs by requiring less maintenance to repair or replace damaged refractory
Enables faster startup and cool down

Headered Waterwall Design

The exclusive RENTECH BOILER SYSTEMS headered membrane front and rear walls eliminate the problems associated with other designs, including some that still employ refractory on the front and rear walls or the use of water-cooled rear furnace walls with massive refractory on the front and rear walls or the use of water-cooled rear furnace walls with massive refractory seals.

No use of refractory walls and seals
Allows for quicker startups and shutdowns
"O" type or "A" type configurations available
Extended life due to a cooler furnace environment
Lower CO emissions and optimized furnace design for ultra-low NOx applications

"D" Type Watertube Boilers

Heavy industrial applications burning gas, oil, refinery gas, hydrogen and off-gas fuels
Furnaces can be custom designed to fit site-specific requirements or for applications requiring integration of low emissions burner and SCR technologies
Single piece design, partial field erection or total field erection

"A" and "O" Type Watertube Boilers

Convection banks designed for tight control of gas velocities
Custom designed for various fuel compositions, firing methods and allowable emissions

Single Pass "O" Type Watertube Boilers

For lower pressure, gas-fired applications
Low gas side pressure drop
Low fan horsepower
Large furnace cross section
Symmetrical design for ease of shipment