Full Content is available to subscribers

Subscribe/Learn More  >

Numerical Modeling and Optimization of a Natural Gas and Coke Oven Gas Mixing Flow Field

[+] Author Affiliations
Xiang Liu, Bin Wu, Guangwu Tang, Yuchao Chen, Armin K. Silaen, Chenn Q. Zhou

Purdue University Northwest, Hammond, IN

Paper No. IMECE2016-67425, pp. V007T09A079; 7 pages
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 7: Fluids Engineering
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5061-9
  • Copyright © 2016 by ASME


Coke oven gas (COG) is a by-product of the coke making process. In the steelmaking industry, COG is often injected along with natural gas as fuel into blast furnace to replace coke for cost reduction. For an integrated steel plant, NG is always more expensive than COG. Especially, NG is purchased externally, and COG is generated internally. To lower the total fuel cost, the operators always try to maximize COG usage and only use NG as supplement for thermal control. However, it is found that such simple concept could not be implemented successfully. Every time, as NG flow rate increases, the COG flow rate decreases automatically. As a result, total fuel supply is short than expected, and the blast furnace finally loses thermal stability. A comprehensive investigation was conducted. Computational fluid dynamics (CFD) was used to model the COG and NG pipeline system. It is identified that mixing of COG and NG has a critical impact. In the existing pipeline system, COG and NG is simply mixed at a joint where COG and NG meet. CFD simulation identified that the current mixing of COG and NG is not adequate, causing COG flow out of control as NG flow varies. A new design of COG and NG joint is developed by adding baffles to ensure the COG flow can be adjusted as needed.

Copyright © 2016 by ASME



Interactive Graphics


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

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