Development of the concept of nonflame exhaust gas reactors

Journal Article · Sat Jan 01 04:00:00 EST 1972 · SAE Prog. Technol.; (United States)

OSTI ID:6647263

Chandler, J M; Smith, A M; Struck, J H

Investigations of the nonflame oxidation of exhaust gas hydrocarbons and carbon monoxide are reported. These investigations cover basic studies of the relationship of temperature, oxygen, and residence time to oxidation rates with external, supplementary, exhaust gas heating. Reaction (oxidation) is then shown to be possible without supplementary heat in the test installation of a homogeneous reactor on one cylinder of a V-8 engine on an engine dynamometer. Vehicle tests were then conducted to determine the operational characteristics and oxidation performances of a series of multicylinder reactors mounted on 292 cu in. displacement engines. Unique methods of air introduction and heat conservation are described. These reactors were capable of effectively decreasing exhaust concentrations of hydrocarbon and carbon monoxide while the vehicles were driven over a traffic route. Tests of two reactors, designed especially for fast warmup, showed improved oxidation performance when test procedures emphasizing warmup were used. The experimental materials used for interior insulation in these reactors failed after less than 2 hr of testing. Tests with reactors on 144 cu in. displacement engines in a compact car have been relatively unsuccessful because of the low exhaust gas temperatures characteristic of these engines. The limited success so far achieved in the application of the homogeneous reactor principle to the oxidation of vehicle exhaust hydrocarbons and carbon monoxide indicates that additional investigations of materials and of the applicability of this principle to other engines are warranted.

• OSTI ID: 6647263
• Journal Information: SAE Prog. Technol.; (United States), Journal Name: SAE Prog. Technol.; (United States) Vol. 6; ISSN SAPTA
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330702 -- Emission Control-- Carbon Monoxide
330704* -- Emission Control-- Hydrocarbons
AIR POLLUTION CONTROL
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DESIGN
EQUIPMENT
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDS
GASEOUS WASTES
GASES
HYDROCARBONS
INFORMATION
NUMERICAL DATA
OPERATION
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
VEHICLES
WASTES