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A NO_X sensor using a new technology for coal fired applications
which can improve control of the ammonia injection rate in
SCR systems.

A practical NO_X sensor with a fast response time that can be
directly installed in the combustion gas stream.

Extremely robust sensors that are long lived and capable of
withstanding elevated temperatures.

 

HORIBA's INM-700 in-situ gas analyzer is designed to meet the requirements of coal-fired power generation plants for cost-effective, low maintenance NOX monitoring. The analyzer uses a ceramic diffusion filter and Zirconium Oxide sensor directly in the gas stream, which eliminates the need for an extraction process for sample collection, and results in lower maintenance. The INM_700 is ideal for inlet SCR control, NOX measurements, and burner balancing/combustion tuning in boiler plant operations.

The INM-700 has the advantage of lower installation, maintenance and capital costs, and a faster response time. In addition, for compliance stratetgies, the ceramic filter allows measurements to be taken near the combustion point of the furnace. This technique utilizes combustion modification techniques such as:

• Low NOX burners (LNB)
• Over-fire air injection (OFA)
• Gas re-burn systems
• Boiler tuning
• Combustion optimization programs

Applications

• SCR control
• Inlet/outlet NOX measurement
• Replacement of FGAS shelters
• Burner balancing/combustion tuning
  • Improved burner efficiencies and reduction of NOX
  • Identifying problem areas in the furnace due to gas stratification linked to specific burner columns.