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http://dx.doi.org/10.14478/ace.2021.1082

A Study on Selective Catalytic Reduction on Diesel Particulate Filter Catalyst and Coating Technology the Removal of Particulate Matters and NOx for Old Special Cargo Vehicles  

Jeong, Kwanhyoung (Research & Development Department, Ceracomb Company, LTD.)
Seo, Philwon (Research & Development Department, Ceracomb Company, LTD.)
Oh, Hungsuk (Research & Development Department, Ceracomb Company, LTD.)
Kim, Jongkook (Research & Development Department, Ceracomb Company, LTD.)
Kang, Soyeon (Research & Development Department, Ceracomb Company, LTD.)
Kang, Jeongho (Powertrain Efficiency R&D Center, Korea Automotive Technology Institute)
Kim, Hyunjun (Powertrain Efficiency R&D Center, Korea Automotive Technology Institute)
Shin, Byeongseon (Research & Development Department, Ceracomb Company, LTD.)
Publication Information
Applied Chemistry for Engineering / v.32, no.6, 2021 , pp. 695-699 More about this Journal
Abstract
In this study, Selective Catalytic Reduction on Diesel Particulate Filter (SDPF) after-treatment system was introduced to simultaneously remove NOx and Particulate Matters (PM) emitted from trucks and special cargo vehicles using old engine. First, in order to select an Selective Catalytic Reduction (SCR) catalyst for SDPF, the de-NOx performance of V/TiO2 and Cu-Zeolite catalysts were compared, and the SCR catalyst characteristics were analyzed through Brunauer Emmett Teller (BET), X-ray Diffraction (XRD) and NH3-TPD (Temperature Programmed Desorption). From the activity test results, the Cu-zeolite catalyst showed the best thermal stability. For optimal coating of SDPF, slurry was prepared according to the target particle size. From the coating stability and back pressure test results of SDPF according to the amount of SCR coating, As a result of comparing coating stability, back pressure, and de-NOx performance by producing A, B, and C samples for each loading amount of the SDPF catalyst, the best results were found in the B sample. The engine dynamometer test was conducted for the optimal SDPF after-treatment system, and the test results satisfied Eu-5 regulations.
Keywords
Selective catalytic reduction on diesel particulate filter; Selective catalytic reduction; Particulate matters; NOx; Cu-Zeolite;
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