Journal
RENEWABLE ENERGY
Volume 117, Issue -, Pages 501-508Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2017.10.055
Keywords
Biomass pretreatment; Lignite; Co-gasification; Synergy effect; Hydrogen production
Funding
- Fundamental Research Funds for the Central Universities [2015XKMS046]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Ask authors/readers for more resources
Wheat straw (WS) was thermally pretreated at 200, 300 and 400 degrees C in a muffle furnace, respectively, before co-gasified with Shengli lignite (SL). The results from thermogravimetric analyzer (TGA) experiments showed that interaction of solid phases between SL and the pretreated WSs occurred at the gasification stage rather than the pyrolysis stage and the synergy varied with the biomass pretreatment temperature. Co-gasification of WS-200/SL had an inhibitory effect, and there was no synergy effect during WS-300/SL co-gasification. In contrast, co-gasification of WS-400/SL had a positive effect in the gasification stage. The investigation of co-gasification in a fixed-bed reactor, however, found synergies in product gas yields and carbon conversion for both WS-200/SL and WS-400/SL. The (H-2+CO) yield and carbon conversion increased by 3.95% and 18.32%, respectively, for co-gasification of WS-400/SL blends compared with the calculated values based on individual materials. From the results of both the TGA and fixed-bed experiments, it is concluded that 400 degrees C of pyrolysis temperature for WS is the best to produce hydrogen for co-gasification with SL. The maximum synergetic effect was explained by the relatively high surface area and high content of alkali metals in WS-400. (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available