Abstract
The present paper proposes two energy integration options, Option-1 and Option-2, to compare power generation and preheating scheme in sponge iron process. Option-1 accounts power generation whereas in Option-2 preheating of feed material, slinger coal and kiln air is considered. These options utilize heat of waste gas that exits the after burning chamber of the process, which is available from 994 °C to 250 °C. The process integration principles are applied to conserve energy in Option-1 and Option-2. For Option-1 8.97 MW power is generated using heat of waste gas, which gives payback period as 4.17 years. On the other hand, Option-2 consumes 37.4% and 4.7% less coal and water, respectively, in comparison to the existing system. The payback period for option-2 is 3.22 years. The feasibility analyses of these options are also discussed. Based on payback period preheating is more profitable option in comparison to power generation. However, when net profits of two options are compared, power generation option is more profitable. The results of the present study are compared well with that of published work.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
