High Throughput Vehicle Test for Spatiotemporal Emissions Evaluation

Kim, Miyoung; Park, Jung-Je; Lee, Byeong Min; Kang, Hee-Chun; Song, Jinwoo; Na, SeungChul; Han, Hyun Sik

doi:10.4271/2018-01-0642

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…In the field of automotive catalysis, however, a relatively low number of studies report on the use of HT screening technologies and the conclusions based on these test results [26][27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Screening NOx Storage Performance—Demonstrating a High Throughput Approach for Evaluating Emission Control Catalysts under Transient Conditions

Sundermann¹,

Kögel²,

Gerlach³

2019

Catalysts

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At hte the high throughput (HT) approach is applied in the field of environmental catalysis on a routine basis. Research programs for automotive applications require validated screening protocols for conditions relevant to engine exhaust as well as experimental measures to ensure quality control using statistical design of experiment. To illustrate the HT approach for a test protocol with dynamic feed switches in a 48-fold reactor, 15 model catalysts for lean NO x traps (LNT) were prepared and screened fresh and after 800 • C hydrothermal aging. In the fresh state, highest NO x efficiency was found at 350-450 • C. A ranking of BaO > SrO > CaO was found as the most active NO x storage components when used as dopants on alumina. 800 • C aging results in a severe performance loss. Using XRD and BET analysis, Pt sintering is identified as most likely cause. These findings agree well with results from conventional tests reported in the literature.

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