UREA SOLUTION REFORMER AND EXHAUST GAS PURIFIER USING SAME

摘要

A carrier gas supplied from a carrier gas source is heated by a carrier gas heater (16), the carrier gas heated by the carrier gas heater is injected from a carrier gas injection nozzle (17), and a urea solution (18) is supplied to the tip of the carrier gas injection nozzle by a first urea solution supply nozzle (21) so that the urea solution is atomized by the carrier gas injected from the carrier gas injection nozzle. A catalyzer (23) for decomposing the atomized urea solution and reforming the solution into ammonia gas is provided facing the carrier gas injection nozzle. An ammonia gas supply nozzle (24) for supplying to an engine exhaust pipe (12) the ammonia gas discharged from an outlet of the catalyzer is attached to the exhaust pipe. The urea solution is adequately atomized, and thereby efficiently reformed into ammonia gas by the catalyzer.