0

Full Content is available to subscribers

Subscribe/Learn More  >

Rapid Production of Hydrogen and Carbon Monoxide via the Heterogeneous Oxidation of Zn(g)

[+] Author Affiliations
Luke J. Venstrom, Jane H. Davidson

University of Minnesota, Minneapolis, MN

Paper No. ES2012-91136, pp. 1101-1108; 8 pages
doi:10.1115/ES2012-91136
From:
  • ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology
  • ASME 2012 6th International Conference on Energy Sustainability, Parts A and B
  • San Diego, California, USA, July 23–26, 2012
  • Conference Sponsors: Advanced Energy Systems Division, Solar Energy Division
  • ISBN: 978-0-7918-4481-6
  • Copyright © 2012 by ASME

abstract

The heterogeneous oxidation of Zn(g) is considered as an improved approach to the production of H2 and CO in the two-step Zn/ZnO solar thermochemical cycle. The rate of Zn(g) oxidation by H2O and CO2 is measured gravimetrically in a quartz tubular flow reactor for temperatures between 800 and 1150 K, Zn(g) concentrations up to 36 mol%, and H2O/CO2 concentrations up to 45 mol%. The rate of the heterogeneous oxidation of Zn(g) by both H2O and CO2 is on the order of 10−8–10−5 mol cm−2 s−1. For similar oxidizing conditions, H2O oxidizes Zn(g) three times as fast as CO2, indicative of a lower heterogeneous oxidation activation energy in the H2O system. Less than one second is required to convert more than 85% of Zn to ZnO for all temperatures in both the H2O and CO2 reacting systems.

Copyright © 2012 by ASME
Topics: Carbon , Hydrogen , oxidation

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In