Synthesis gas waste heat boiler for ammonia plants
In ammonia production plants, managing the immense heat generated during the synthesis gas process is critical. Conventional heat management systems often suffer from efficiency losses, operational difficulties, and potential safety hazards such as hydrogen embrittlement.
Optimizes heat recovery and enhances safety
The Synthesis Gas Waste Heat Boiler by BORSIG Process Heat Exchanger GmbH is designed specifically for ammonia plants. This boiler can handle gas pressures up to 350 bar and steam pressures up to 160 bar. Its unique U-tube arrangement features a quadratic pitch design, where each hot shank is surrounded by four cold shanks, significantly reducing tube wall and tube sheet temperatures below the nitriding temperature of 380°C. This layout minimizes the risk of hydrogen embrittlement. The boiler can be installed both vertically and horizontally, and allows for the integration of a steam drum or a feed water pre-heater if required. Made from austenitic material, its internal components and ferrules ensure durability and efficiency. A bypass can be installed to control the gas outlet temperature, and the tube ends are hydraulically expanded over the tube sheet thickness to prevent crevice corrosion.
Benefits
- High pressure and temperature handling
- Reduces risk of hydrogen embrittlement
- Flexible installation options
- Temperature control with bypass installation
- Durable austenitic material construction