Catalytic Bridge, Chemical Monitor

EPA Contract Number: 68D30129
Title: Catalytic Bridge, Chemical Monitor
Investigators: Ham, David
Small Business: Envirochem Inc.
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 1993 through March 1, 1994
Project Amount: $50,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1993) RFA Text |  Recipients Lists
Research Category: Ecological Indicators/Assessment/Restoration , SBIR - Monitoring , Small Business Innovation Research (SBIR)


This proposal presents a concept for a chemical monitor based on differential catalytic reactivities and large reaction exothermicities. The simplicity of the proposed sensor concept promises an economic and reliable monitor for in-situ measurement of a variety of 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 a Phase I project is to measure the sensitivities, selectivities, and linearities of a laboratory instrument version of the proposed as functions of catalyst material, catalyst temperature, and gas consumption. For selected promising cases, they will test the catalyst wires for longevity and poisoning by likely contaminants. In a Phase II project, a prototype commercial system can be assembled and tested over a broader range of parameters and compared with other monitors in real environments.

Supplemental Keywords:

Scientific Discipline, Air, Toxics, Ecosystem Protection/Environmental Exposure & Risk, Sustainable Industry/Business, air toxics, cleaner production/pollution prevention, Chemistry, HAPS, Technology for Sustainable Environment, Monitoring/Modeling, New/Innovative technologies, Engineering, Engineering, Chemistry, & Physics, monitoring, Nitrogen Oxides, Nox, real time measurement, catalyst composition, control, catalyst, continuous measurement, real time, nitrogren oxides (NOx), Ammonia, novel catalyst systems, continuous monitoring, in situ sensor, catalyst formulations, catalysts, compliance, continuous emissions monitoring, measurement, nitrogen oxides (Nox), real time monitoring, sensor, ammonia emissions, measure, sensor technology, air quality, real-time monitoring

Progress and Final Reports:

  • Final
  • SBIR Phase II:

    Catalytic Bridge, Chemical Monitor