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Effect of carbonization conditions on the property and structure of bamboo char for injection in blast furnace
University of Science and Technology Beijing, China.
University of Science and Technology Beijing, China.
University of Science and Technology Beijing, China.
University of Science and Technology Beijing, China.
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2019 (English)In: ISIJ International, ISSN 0915-1559, E-ISSN 1347-5460, Vol. 59, no 3, p. 442-449Article in journal (Refereed) Published
Abstract [en]

To evaluate the effect of carbonization conditions on the bamboo, the relationship between carbonization parameter and physicochemical characteristics was studied. The results indicated that the volatile matter drastically decreased with the increase of carbonization temperature, while the fixed carbon and fuel ratio (fixed carbon/volatile matter) increased. Excellent linearity between the fuel ratio and carbonization temperature was obtained. The energy yield decreased gradually when rising the carbonization temperature, whereas the change of heating value was not obvious. A new calculation model of higher heating value (HHV) was developed, and it could be used to predict HHV of the bamboo char more precisely at temperatures above 300°C. The positive impact of functional groups, specific surface area as well as catalysis of alkali metal may contribute to the combustion of bamboo char. The results showed that there is a feasible operating condition for the transformation of bamboo into char with the carbonization parameter at 400°C for 30 min.

Place, publisher, year, edition, pages
Iron and Steel Institute of Japan , 2019. Vol. 59, no 3, p. 442-449
Keywords [en]
Bamboo, Blast furnace injection, Carbonization conditions, Combustion, Heating value, Alkali metals, Calorific value, Carbon, Carbonization, Calculation models, Carbonization temperatures, Higher heating value, Operating condition, Physicochemical characteristics, Volatile matters, Blast furnaces
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-38542DOI: 10.2355/isijinternational.ISIJINT-2018-460Scopus ID: 2-s2.0-85063957187OAI: oai:DiVA.org:ri-38542DiVA, id: diva2:1314297
Note

Funding details: National Natural Science Foundation of China, NSFC, 51804026; Funding text 1: This work was supported by the Yong Elite Scientists Sponsorship Program By CAST(2017QNRC001) and the Natural Science Foundation for Young Scientists of China (No. 51804026).

Available from: 2019-05-08 Created: 2019-05-08 Last updated: 2019-05-08Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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