Catalyst for purifying diesel engine exhaust gases

Patent · Tue Oct 14 04:00:00 EDT 1986

OSTI ID:5084958

Saito, K; Ueda, K; Ikeda, Y; Ono, T

This patent describes a catalyst for purifying a diesel engine exhaust gas. The catalyst comprises a refractory three-dimensional structure having a gas filter function, a porous inorganic carrier supported on it, and (a) vanadium oxide and (b) at least one metal selected from the group consisting of platinum, rhodium and palladium supported on the carrier. The amount of component (a) is in the range of 0.2 to 40.0 g as V/sub 2/O/sub 5/ per liter of the structure and the amount of component (b) is in the range of 0.1 to 4.0 g as metal liter of the structure, wherein the mole ratio of component (a) to component (b) deposited as 1-90:1.

• Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd., Osaka
• Patent Number(s): US 4617289
• OSTI ID: 5084958
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330700 -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION CONTROL
CATALYSTS
CATALYTIC CONVERTERS
CATALYTIC EFFECTS
CHALCOGENIDES
CONTROL
DIESEL ENGINES
ENGINES
EQUIPMENT
EXHAUST GASES
FILTERS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OXIDES
OXYGEN COMPOUNDS
PALLADIUM COMPOUNDS
PLATINUM COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PURIFICATION
QUANTITY RATIO
REFRACTORIES
REFRACTORY METAL COMPOUNDS
RHODIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES
WASTES