Modeling of Non-Road Diesel Exhaust Aftertreatment Systems: Diesel Oxidation and Selective Catalytic Reduction Catalysts

Desai, Maya R.; Tutuianu, Monica; Ahmadinejad, Mehrdad; Watling, Timothy C.; York, Andrew P. E.; Stevenson, Joseph W.

doi:10.4271/2010-01-2092

Cited by 8 publications

(2 citation statements)

References 14 publications

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“…The PGM weight per vehicle for gasoline engine exhaust systems is calculated using cost minimization for the three-way catalytic converters (TWC). The PGM weight per vehicle for diesel engine exhaust systems is computed by summing the individually minimized cost for the lean NO x trap (LNT), diesel oxidation catalyst (DOC), and catalyzed particulate filter (CPF). ,− …”

Section: Methodsmentioning

confidence: 99%

“…The PGM weight per vehicle for diesel engine exhaust systems is computed by summing the individually minimized cost for the lean NO x trap (LNT), diesel oxidation catalyst (DOC), and catalyzed particulate filter (CPF). (14,(54)(55)(56)(57)(58)(59)(60)(61)(62)(63)(64)(65)(66) To understand the implications of the substitution curves described above, the Pt/Pd price ratio was varied over the range 0 to 5 (historically this ratio has generally ranged between 1.6 and 3) and the lowest cost Pt composition was calculated for each price point. Figure 2 shows (40) (NOT close to the 0% Pt implied by the linear model).…”

Section: Technique Using the Substitution Curve Defined In Equation mentioning

confidence: 99%

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Assessing Economic Modulation of Future Critical Materials Use: The Case of Automotive-Related Platinum Group Metals

Zhang

Everson

Wallington

et al. 2016

Environ. Sci. Technol.

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Platinum-group metals (PGMs) are technological and economic enablers of many industrial processes. This important role, coupled with their limited geographic availability, has led to PGMs being labeled as "critical materials". Studies of future PGM flows have focused on trends within material flows or macroeconomic indicators. We complement the previous work by introducing a novel technoeconomic model of substitution among PGMs within the automotive sector (the largest user of PGMs) reflecting the rational response of firms to changing prices. The results from the model support previous conclusions that PGM use is likely to grow, in some cases strongly, by 2030 (approximately 45% for Pd and 5% for Pt), driven by the increasing sales of automobiles. The model also indicates that PGM-demand growth will be significantly influenced by the future Pt-to-Pd price ratio, with swings of Pt and Pd demand of as much as 25% if the future price ratio shifts higher or lower even if it stays within the historic range. Fortunately, automotive catalysts are one of the more effectively recycled metals. As such, with proper policy support, recycling can serve to meet some of this growing demand.

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