Honeycomb ceramic substrates are core components of diesel generator set exhaust aftertreatment systems, primarily used for catalytic conversion and particulate matter (PM) capture to meet stringent non-road emission regulations.
Tailored to the operational characteristics of diesel generator sets—such as "variable load and frequent start-stop"—SCR systems use honeycomb ceramics as their core carrier, with catalysts coated on their surfaces. By utilizing urea as a reductant, these systems efficiently convert nitrogen oxides (NOₓ) into nitrogen (N₂) and water (H₂O) under high-temperature flue gas conditions. The high specific surface area and thermal shock resistance of honeycomb ceramic substrates ensure stable catalytic efficiency is maintained throughout the generator set’s "start-up – full load – shutdown" cycle, meeting relevant emission standards.
Leveraging their 3D reticular pore structure, honeycomb ceramic substrates efficiently trap soot particles (PM) generated by the combustion of generator sets. When PM accumulates to a certain level, it can be oxidized into carbon dioxide via "active regeneration" or "passive regeneration," ensuring the system remains unblocked during long-term operation. To accommodate the "wide single-unit power coverage" characteristic of generator sets, honeycomb ceramic substrates can be customized into large-sized modules, adapting to generator sets across different power ranges.
Integrated exhaust aftertreatment systems, with honeycomb ceramic substrates as their central hub, enhance the purification efficiency of CO, HC, NOₓ, and PM in generator set exhaust. These systems fully comply with non-road-related regulations and are adapted to scenarios such as mines, data centers, and emergency power supply, where generators require "low-emission and high-reliability" performance.
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