Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7719044 | International Journal of Hydrogen Energy | 2014 | 7 Pages |
Abstract
Catalytic gasification (CG) of sewage sludge-derived volatiles (SSDVs) was investigated over a prepared nickel loaded on Loy Yong lignite char (Ni/LYLC) in a two-stage fixed-bed reactor to understand the effects of the catalyst, temperature, and steam on the gas yields and nitrogen transformations. Non-catalytic thermal decomposition of SSDVs below 650 °C is not effective for decomposing the tar and converting the volatile nitrogen species (VNSs) to N2. Ni/LYLC proved to be quite active not only for tar reduction, but also for the conversion of VNSs to N2 at 650 °C. CG of SSDVs over Ni/LYLC produced significant amount of clean H2-rich syngas. CG above 650 °C results in the increase of nickel crystallite size and the deactivation of Ni/LYLC for tar decomposition. The study revealed the possibility of using Ni/LYLC as a potential catalyst for low-temperature CG of sewage sludge to produce clean H2-rich syngas.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Jing-Pei Cao, Xin Huang, Xiao-Yan Zhao, Ben-Shui Wang, Sirimirin Meesuk, Kazuyoshi Sato, Xian-Yong Wei, Takayuki Takarada,