LAPSE:2018.0755
Published Article
LAPSE:2018.0755
Generation of Hydrogen, Lignin and Sodium Hydroxide from Pulping Black Liquor by Electrolysis
Guangzai Nong, Zongwen Zhou, Shuangfei Wang
October 22, 2018
Black liquor is generated in Kraft pulping of wood or non-wood raw material in pulp mills, and regarded as a renewable resource. The objective of this paper was to develop an effective means to remove the water pollutants by recovery of both lignin and sodium hydroxide from black liquor, based on electrolysis. The treatment of a 1000 mL of black liquor (122 g/L solid contents) consumed 345.6 kJ of electric energy, and led to the generation of 30.7 g of sodium hydroxide, 0.82 g of hydrogen gas and 52.1 g of biomass solids. Therefore, the recovery ratios of elemental sodium and biomass solids are 80.4% and 76%, respectively. Treating black liquor by electrolysis is an environmentally friendly technology that can, in particular, be an alternative process in addressing the environmental issues of pulping waste liquor to the small-scale mills without black liquor recovery.
Keywords
black liquor, electrolysis, Energy, Hydrogen, lignin
Suggested Citation
Nong G, Zhou Z, Wang S. Generation of Hydrogen, Lignin and Sodium Hydroxide from Pulping Black Liquor by Electrolysis. (2018). LAPSE:2018.0755
Author Affiliations
Nong G: Institute of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China [ORCID]
Zhou Z: Institute of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
Wang S: Institute of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
[Login] to see author email addresses.
Journal Name
Energies
Volume
9
Issue
1
Article Number
E13
Year
2015
Publication Date
2015-12-25
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en9010013, Publication Type: Journal Article
Record Map
Published Article

LAPSE:2018.0755
This Record
External Link

doi:10.3390/en9010013
Publisher Version
Download
Files
[Download 1v1.pdf] (1.8 MB)
Oct 22, 2018
Main Article
License
CC BY 4.0
Meta
Record Statistics
Record Views
646
Version History
[v1] (Original Submission)
Oct 22, 2018
 
Verified by curator on
Oct 22, 2018
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2018.0755
 
Original Submitter
Calvin Tsay
Links to Related Works
Directly Related to This Work
Publisher Version