Abstract
In the gasification of biomass, it is necessary to limit the amount of by-product tar and increase the yields of hydrogen (H 2 ) and carbon monoxide (CO) (syngas). Therefore, we conducted gasification and reforming experiments on woody biomass using an electric tubular furnace, to evaluate the gas reforming and tar decomposition performance of a NiO/SBA-15 catalyst. As a result, we found that this catalyst is effective for H 2 production. It is believed that the increase in H 2 volume due to the catalyst occurs through a steam reforming reaction involving hydrocarbons, including methane (CH 4 ), and the water-gas shift reaction. With respect to the influence of the gasifying agent on the reforming effect of the catalyst, the amount of generated carbon dioxide (CO 2 ) and hydrogen (H 2 ) increases because the shift reaction is promoted by supplying steam. On the other hand, it was inferred that the shift reaction rarely occurred because it approaches equilibrium by supplying O 2 . Furthermore, it is suggested that light aromatic hydrocarbons are decomposed by the catalyst. Implications: The mesoporous silica catalyst NiO/SBA-15 was highly effective for H 2 production and decomposition of light aromatic compounds in the gasification of woody biomass. In the catalyst reaction, supplying steam promoted H 2 production. From thermodynamic analysis and discussion, it was also inferred that supplying O 2 might prevent the water gas shift reaction. The results are useful for designing a process needed for rich H 2 production and gas refining process for further use of syngas.
| Original language | English |
|---|---|
| Pages (from-to) | 502-512 |
| Number of pages | 11 |
| Journal | Journal of the Air and Waste Management Association |
| Volume | 69 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 3 2019 |
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ASJC Scopus subject areas
- Waste Management and Disposal
- Management, Monitoring, Policy and Law
Cite this
Gas reforming and tar decomposition performance of nickel oxide (NiO)/SBA-15 catalyst in gasification of woody biomass. / Inoue, Naoko; Tada, Toshiya; Kawamoto, Katsuya.
In: Journal of the Air and Waste Management Association, Vol. 69, No. 4, 03.04.2019, p. 502-512.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Gas reforming and tar decomposition performance of nickel oxide (NiO)/SBA-15 catalyst in gasification of woody biomass
AU - Inoue, Naoko
AU - Tada, Toshiya
AU - Kawamoto, Katsuya
PY - 2019/4/3
Y1 - 2019/4/3
N2 - In the gasification of biomass, it is necessary to limit the amount of by-product tar and increase the yields of hydrogen (H 2 ) and carbon monoxide (CO) (syngas). Therefore, we conducted gasification and reforming experiments on woody biomass using an electric tubular furnace, to evaluate the gas reforming and tar decomposition performance of a NiO/SBA-15 catalyst. As a result, we found that this catalyst is effective for H 2 production. It is believed that the increase in H 2 volume due to the catalyst occurs through a steam reforming reaction involving hydrocarbons, including methane (CH 4 ), and the water-gas shift reaction. With respect to the influence of the gasifying agent on the reforming effect of the catalyst, the amount of generated carbon dioxide (CO 2 ) and hydrogen (H 2 ) increases because the shift reaction is promoted by supplying steam. On the other hand, it was inferred that the shift reaction rarely occurred because it approaches equilibrium by supplying O 2 . Furthermore, it is suggested that light aromatic hydrocarbons are decomposed by the catalyst. Implications: The mesoporous silica catalyst NiO/SBA-15 was highly effective for H 2 production and decomposition of light aromatic compounds in the gasification of woody biomass. In the catalyst reaction, supplying steam promoted H 2 production. From thermodynamic analysis and discussion, it was also inferred that supplying O 2 might prevent the water gas shift reaction. The results are useful for designing a process needed for rich H 2 production and gas refining process for further use of syngas.
AB - In the gasification of biomass, it is necessary to limit the amount of by-product tar and increase the yields of hydrogen (H 2 ) and carbon monoxide (CO) (syngas). Therefore, we conducted gasification and reforming experiments on woody biomass using an electric tubular furnace, to evaluate the gas reforming and tar decomposition performance of a NiO/SBA-15 catalyst. As a result, we found that this catalyst is effective for H 2 production. It is believed that the increase in H 2 volume due to the catalyst occurs through a steam reforming reaction involving hydrocarbons, including methane (CH 4 ), and the water-gas shift reaction. With respect to the influence of the gasifying agent on the reforming effect of the catalyst, the amount of generated carbon dioxide (CO 2 ) and hydrogen (H 2 ) increases because the shift reaction is promoted by supplying steam. On the other hand, it was inferred that the shift reaction rarely occurred because it approaches equilibrium by supplying O 2 . Furthermore, it is suggested that light aromatic hydrocarbons are decomposed by the catalyst. Implications: The mesoporous silica catalyst NiO/SBA-15 was highly effective for H 2 production and decomposition of light aromatic compounds in the gasification of woody biomass. In the catalyst reaction, supplying steam promoted H 2 production. From thermodynamic analysis and discussion, it was also inferred that supplying O 2 might prevent the water gas shift reaction. The results are useful for designing a process needed for rich H 2 production and gas refining process for further use of syngas.
UR - http://www.scopus.com/inward/record.url?scp=85061401079&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85061401079&partnerID=8YFLogxK
U2 - 10.1080/10962247.2018.1557088
DO - 10.1080/10962247.2018.1557088
M3 - Article
C2 - 30540545
AN - SCOPUS:85061401079
VL - 69
SP - 502
EP - 512
JO - Journal of the Air and Waste Management Association
JF - Journal of the Air and Waste Management Association
SN - 1096-2247
IS - 4
ER -