4.6 Article

Early-stage evaluation of catalyst manufacturing cost and environmental impact using CatCost

Journal

NATURE CATALYSIS
Volume 5, Issue 4, Pages 342-353

Publisher

NATURE PORTFOLIO
DOI: 10.1038/s41929-022-00759-6

Keywords

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Funding

  1. US Department of Energy (DOE) [DE-AC36-08GO28308]
  2. Chemical Catalysis for Bioenergy Consortium, a member of the Energy Materials Network
  3. US DOE Office of Energy Efficiency and Renewable Energy Bioenergy Technologies Office

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This article introduces a free catalyst cost estimation tool called CatCost and demonstrates its functionality using the catalytic fast pyrolysis of biomass as a case study. By comparing the economic and environmental improvements of different catalysts and the impact of synthesis methods and production scale on costs, it is found that more stable catalysts have lower costs.
The costs and environmental impacts of catalyst manufacture are often neglected during early-stage research because of a lack of accessible, standardized tools to assess them. Here we report the key features of CatCost, a free and public estimation tool for the evaluation of catalyst cost. We demonstrate its functionality with a case study of diverse catalysts (ZSM-5, Pt/TiO2 and Mo2C) for the catalytic fast pyrolysis of biomass. We quantified the economic and environmental improvements made by replacing circulating-bed ZSM-5 with more stable, fixed-bed Pt/TiO2 and Mo2C catalysts, while revealing the effects of synthesis methods and production scale on catalyst costs. The manufacture of ZSM-5 had a large processing cost contribution that was strongly scale dependent, whereas the costs of the other catalysts were dominated by raw materials at all scales. Furthermore, while ZSM-5 costs the least per kilogram, the more stable catalysts cost half as much per gallon of fuel.

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