GIEC OpenIR  > 中国科学院广州能源研究所
Effects of titanium dioxide as direct causticization agent on the pyrolysis and steam gasification characteristics of straw black liquor solid
Wang, Guijin; Yuan, Hongyou; Guo, Daliang; Zhou, Zhaoqiu; Yin, Xiuli; Wu, Chuangzhi
2015-06-01
Source PublicationTAPPI JOURNAL
Volume14Issue:6Pages:361-369
AbstractBlack liquor gasification process with direct causticization using titanium dioxide (TiO2) is considered a promising technology for black liquor recovery in the future. In this study, laboratory-scale pyrolysis and steam gasification experiments with direct causticization using TiO2 for straw black liquor solid were performed in a thermogravimetric analyzer and a tube furnace, respectively. Effects of TiO2 on the pyrolysis and steam gasification characteristics are discussed on the basis of product analysis. The results show that after adding TiO2 at temperature higher than 550 degrees C, the direct causticization reactions happened, while the thermogravimetric behavior of the black liquor solid along with releasing pattern of carbon dioxide and carbon monoxide was changed. In the presence of TiO2, swelling and agglomeration were prevented during the pyrolysis process. Meanwhile, sodium emission was significantly decreased and the steam gasification rate of the black liquor char at 850 degrees C was substantially improved. The melting process during gasification was suppressed with direct causticization. Moreover, the yield of hydrogen was kept constant while the yields of carbon dioxide and carbon monoxide were increased during the steam gasification process with direct causticization.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
WOS Subject ExtendedMaterials Science
WOS KeywordTG-FTIR ANALYSIS ; THERMAL-DEGRADATION ; WHEAT-STRAW ; RELEASE ; CHAR ; CONVERSION ; TITANATES ; PRESSURE ; BEHAVIOR ; KINETICS
Indexed BySCI
Language英语
WOS SubjectMaterials Science, Paper & Wood
WOS IDWOS:000357403200003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10520
Collection中国科学院广州能源研究所
AffiliationChinese Acad Sci, Guangzhou Inst Energy Convers, Beijing 100864, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Wang, Guijin,Yuan, Hongyou,Guo, Daliang,et al. Effects of titanium dioxide as direct causticization agent on the pyrolysis and steam gasification characteristics of straw black liquor solid[J]. TAPPI JOURNAL,2015,14(6):361-369.
APA Wang, Guijin,Yuan, Hongyou,Guo, Daliang,Zhou, Zhaoqiu,Yin, Xiuli,&Wu, Chuangzhi.(2015).Effects of titanium dioxide as direct causticization agent on the pyrolysis and steam gasification characteristics of straw black liquor solid.TAPPI JOURNAL,14(6),361-369.
MLA Wang, Guijin,et al."Effects of titanium dioxide as direct causticization agent on the pyrolysis and steam gasification characteristics of straw black liquor solid".TAPPI JOURNAL 14.6(2015):361-369.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Guijin]'s Articles
[Yuan, Hongyou]'s Articles
[Guo, Daliang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Guijin]'s Articles
[Yuan, Hongyou]'s Articles
[Guo, Daliang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Guijin]'s Articles
[Yuan, Hongyou]'s Articles
[Guo, Daliang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.