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Fired Packaged Watertube Boilers
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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