Method and device for oxidatively decomposing pollutants in exhaust gases emitted by internal combustion engine with intervention of ultraviolet light

Abstract

The invention belongs to a method and a device for oxidatively decomposing pollutants in exhaust gases emitted by an internal combustion engine with the intervention of ultraviolet light. At least one ultraviolet light irradiated region through which the exhaust gases emitted by the internal combustion engine pass is arranged in an exhaust system of the internal combustion engine, at least one photocatalyst net through which the exhaust gases emitted by the internal combustion engine pass is arranged at at least one end of the ultraviolet light irradiated region, and the ultraviolet light intervenes in the oxidative decomposition of the pollutants in the exhaust gases emitted by the internal combustion engine. Particulate matters emitted by the internal combustion engine can be decomposed and purified, and the catalytic oxidation-reduction reaction of a three-way catalytic converter is added, so that the problems of emissions of the particulate matters of the internal combustion engine are solved, noxious substances in the tail gases are purified, and environmental pollution is reduced; and the method is simple and practical, the emissions of harmful gases in the tail gases can be effectively reduced, and the environmental pollution can be reduced.

Description

technical field [0001] The invention belongs to a method and a device for intervening ultraviolet light to oxidize and decompose pollutants in exhaust gas discharged from an internal combustion engine. Background technique [0002] It is well known that the emission of negative products after combustion of fuel oil in internal combustion engines is one of the main factors that endanger the environment. According to calculations, the energy conversion rate of the internal combustion engine only accounts for 38% of the combustion value, and the rest is 33% exhaust loss and 29% cooling loss. In the exhaust process, there are quite a few components that are combustion negative reaction products, including: carbon monoxide, hydrocarbons, nitrogen oxides, sulfur dioxide, soot particles (certain heavy metal compounds, lead compounds, black smoke and oil mist), formaldehyde, etc. Harmful gases emitted from the exhaust of internal combustion engines, and the particulate matter of ha...

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Problems solved by technology

However, it has no effect on the purification of particulate matter in the exhaust of internal combustion engines, and the three-way catalytic conv

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