Catalytic Bridge, Chemical Monitor

EPA Contract Number: 68D40079
Title: Catalytic Bridge, Chemical Monitor
Investigators: Ham, David
Small Business: Envirochem Inc.
EPA Contact: Manager, SBIR Program
Phase: II
Project Period: September 1, 1994 through July 1, 1998
Project Amount: $165,000
RFA: Small Business Innovation Research (SBIR) - Phase II (1994) RFA Text |  Recipients Lists
Research Category: Ecological Indicators/Assessment/Restoration , SBIR - Monitoring , Small Business Innovation Research (SBIR)


This Phase II SBIR proposal presents a concept for a chemical monitor based on differential catalytic reactivities and heterogeneous reaction exothermicities. The simplicity of the proposed sensor concept promises an economical and reliable monitor for continuous, in-situ measurements of a variety of gases. Envirochem proposes to continue development of this concept for measuring ammonia in flue gases. A sensitive, in-situ, real-time ammonia monitor is required for control of many NOx control processes that either use or produce ammonia.

The goal of the Phase II project is to develop a prototype instrument with sufficient sensitivity, selectivity, and linearity to test as a process control monitor. An instrument employing the most promising catalyst wires will be tested for longevity and poisoning by likely contaminants. A prototype commercial system will be tested over a broad range of parameters and compared with other monitors in real environments.

Supplemental Keywords:

Ammonia, Monitor, Sensor, Detector, Catalyst., RFA, Scientific Discipline, Air, Toxics, Ecosystem Protection/Environmental Exposure & Risk, Chemical Engineering, air toxics, Monitoring/Modeling, Civil/Environmental Engineering, Environmental Monitoring, Engineering, EPCRA, Engineering, Chemistry, & Physics, Environmental Engineering, monitoring, Ammonia, flue gas monitor, detect, continuous monitoring, in situ sensor, flue gas, catalytic bridge, continuous emissions monitoring, real time monitoring, ammonia emissions, real-time monitoring

Progress and Final Reports:

  • Final

  • SBIR Phase I:

    Catalytic Bridge, Chemical Monitor