論文

査読有り
2013年9月

Conversion of nitrogen compounds and tars obtained from pre-composted pig manure pyrolysis, over nickel loaded brown coal char

Biomass and Bioenergy
  • Liuyun Li
  • ,
  • Takayuki Takarada

56
開始ページ
456
終了ページ
463
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.biombioe.2013.05.028

Fuel gas production and nitrogen transformation during pig manure pyrolysis from room temperature to 900°C are investigated. The catalytic decomposition of the derived volatiles is also studied. Ammonia, HCN and N2 were obtained as the main N-containing gases. Ammonia was mainly emitted below 700°C, which corresponds to 24.8wt% of the nitrogen in the manure. Hydrogen cyanide and N2 gases obviously formed at temperatures above 700°C, while the HCN concentration was as low as one ninth that of NH3 and one fifth of the concentration of nitrogen even at 900°C. Thermal cracking of the pyrolysis volatiles produced little NH3, but noticeably increased HCN formation.When the prepared nickel-loaded brown coal char (LY-Ni) was added to the second part of the reactor (second stage) as a catalyst, most of the N-containing species in the volatiles converted into N2 gas. It suggests that LY-Ni has high catalytic activity for the conversion of N-containing compounds. Significant quantities of light fuel gases (H2, CO and CH4) were also generated. Compared with sand, 5.8 times (H2 and CO) the amount of gases was produced with the LY-Ni char at 650°C. Decomposition of the manure volatiles depends on the catalyst temperature. Total product gases approximately doubled in yield when the catalyst temperature increased from 450 to 550°C, and the volatiles conversion (based on carbon balance of the manure volatiles) increased from 72.4wt% to 92.0wt%. At 600-700°C, the volatiles conversions stabilized at high levels of 96.7-98.2wt%. © 2013 Elsevier Ltd.

リンク情報
DOI
https://doi.org/10.1016/j.biombioe.2013.05.028
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000323804800050&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.biombioe.2013.05.028
  • ISSN : 0961-9534
  • SCOPUS ID : 84879752938
  • Web of Science ID : WOS:000323804800050

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