Patent ID: 7487927

Claim:
A fertilizer system for extracting nitrogen compounds and other plant nutrients from exhaust gases of a combustion device, the system comprising: an exhaust chamber having an inlet and an outlet and being arranged for receiving the exhaust gases from the combustion device therethrough; a catalytic converter coupled to an inlet of the exhaust chamber and being arranged for receiving the exhaust gases therethrough prior to the exhaust chamber; a water injector arranged for injecting water into the exhaust chamber such that the water mixes with the exhaust gases to form a water vapor; an air pump arranged for injecting air into the exhaust gases near the water injector; a condensing chamber; an outlet pipe arranged to direct the water vapor and the exhaust gases from the exhaust chamber to the condensing chamber; the condensing chamber being arranged for condensing said water vapor exiting the exhaust chamber with the exhaust gases to form a condensate solution; and a collector arranged for collecting said condensate solution from the condensing chamber.