Universal Synthetic Gas Reactor®
Office of Automotive Engineering
The computer-controlled gas-blending system provides low-cost and high-flexibility gas mixtures to simulate real-world gas streams.
Typical stoichiometric perturbated light-off results for a three-way catalyst.
The universal synthetic gas reactor® (USGR®) was developed by Southwest Research Institute (SwRI) to test the performance of small-core catalysts. The USGR is used to evaluate the performance of catalyst technologies in several applications, including:
- Three-way catalyst (TWC)
- Lean NOX trap (LNT)
- Selective catalyst reduction (SCR)
- Oxidation catalyst
- Fuel cell and reforming catalyst
- Sulfur trap
- Selective noncatalyst reduction (SNCR)
Range of Analyzers Used
To provide real-time, second-by-second data, a range of analyzers is used, including:
- Total hydrocarbons (HC)
- Fourier transform infrared (FTIR) spectroscopy for real-time measurement of gas components such as:
- HC species
Typical temperature sweep results for an SCR catalyst.
Typical FTIR output for an LNT catalyst test.
The USGR system can blend synthetic gas mixtures, control a wide range of catalyst inlet temperatures and flow rates, and test a variety of catalysts with different operating modes.
Results Obtained Using the Universal Synthetic Gas Reactor
As a screening tool for catalyst formulations, the USGR can identify the best overall performance for the most desirable conditions. Durability concerns can be determined with aged catalysts. Precise test results are achieved rapidly and cost effectively. Test conditions can be set up to simulate engine exhaust conditions for fuels including:
- Compressed natural gas (CNG)
- Liquid petroleum gas (LPG)
synthetic gas reactor • USGR • small-core catalysts • catalyst technologies • catalyst reduction • oxidation catalyst • fuel cell • reforming catalyst • sulfur trap • noncatalyst reduction • SNCR • SCR • NOx trap