Hydrogen element flow and economic analyses of a coal direct chemical looping hydrogen generation process

Guang Li, Yuxue Chang, Tao Liu, Zhongliang Yu, Zheyu Liu, Fan Liu, Shuqi Ma, Yujing Weng and Yulong Zhang

Energy, 2020, vol. 206, issue C

Abstract: Coal direct chemical looping hydrogen generation (CDCLHG) is known as an attractive technique that converts coal into high purity H2 with inherent CO2 separation. In this paper, a CDCLHG system is developed and modeled. According to the prediction results, hydrogen element flow and economic performance of the CDCLHG system are researched. The study demonstrate that utilization efficiency of hydrogen element is 51.89%. By economic analysis, the results indicate that the calculated H2 producing cost of the CDCLHG system is 11.55 CNY/kg with coal price of 797 CNY/t and Fe based oxygen carrier price of 1986 CNY/t. Sensitivities to variables such as coal price, oxygen carrier price, water price and operating labor are researched. Coal price represents the most important sensitivity, while the sensitivity to water price and operating labor is relatively small. Additionally, H2 production from the CDCLHG process is only 3.0% more expensive than H2 production from natural gas chemical looping reforming with Fe based oxygen carrier. The CDCLHG process therefore appears to be an ideal option to obtain competitive hydrogen production.

Keywords: Economic analysis; Hydrogen element flow; Coal; Chemical looping; Hydrogen generation (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544220313505
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:206:y:2020:i:c:s0360544220313505

DOI: 10.1016/j.energy.2020.118243

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().