Emission control system and method

Abstract

A system includes an exhaust conduit configured to conduct a stream of exhaust gas, wherein the exhaust conduit comprises a selective catalytic reduction catalyst reactor comprising a first catalyst composition; an fuel source configured to introduce a fuel into the exhaust gas stream within the exhaust conduit upstream of the selective catalytic reduction catalyst reactor; a catalytic partial oxidation reformer in fluid communication with the exhaust gas stream and upstream from the selective catalytic reduction catalyst reactor, wherein the catalytic partial oxidation reformer can introduce a hydrogen-rich syngas co-reductant into the exhaust gas stream, when a temperature of the exhaust fluid is less than a determined threshold temperature.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure includes embodiments that relate to a system for controlling emissions. The disclosure includes embodiments that relate to a method for controlling emissions.[0003]2. Discussion of Art[0004]Some vehicles may emit nitrogen oxides (NOx) during use. Such emissions may be undesirable.[0005]Emission controls have included engine modification and exhaust gas treatment. It may be desirable to have a system for emissions control that differs from those systems currently available. It may be desirable to have a method of controlling emissions that differs from those methods that are currently available.BRIEF DISCUSSION[0006]In one embodiment, a system for controlling emissions includes an exhaust conduit that conducts a stream of exhaust gas. The exhaust conduit includes a selective catalytic reduction catalyst including a first catalyst composition. A fuel can be introduced into the exhaust gas stream in the exhaust conduit upst...

AI Technical Summary

Benefits of technology

[0006]In one embodiment, a system for controlling emissions includes an exhaust conduit that conducts a stream of exhaust gas. The exhaust conduit includes a selective catalytic reduction catalyst including a first catalyst composition. A fuel can be introduced into the exhaust gas stream in the exhaust conduit upstream of the first catalyst composition. A catalytic partial

Problems solved by technology

Such emissions ma

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