Influence of demineralization using acid wash on N migration and transformation during pyrolysis of Shengli brown coal
dc.contributor.author | Wang, Y. | |
dc.contributor.author | Zheng, P. | |
dc.contributor.author | Yang, S. | |
dc.contributor.author | Zhang, Shu | |
dc.contributor.author | Bai, Y. | |
dc.contributor.author | Jia, X. | |
dc.date.accessioned | 2017-08-24T02:23:38Z | |
dc.date.available | 2017-08-24T02:23:38Z | |
dc.date.created | 2017-08-23T07:21:49Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Wang, Y. and Zheng, P. and Yang, S. and Zhang, S. and Bai, Y. and Jia, X. 2014. Influence of demineralization using acid wash on N migration and transformation during pyrolysis of Shengli brown coal. Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology. 42 (5): pp. 519-526. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/56342 | |
dc.description.abstract |
This paper is to examine effects of inherent minerals in coal on N migration and transformation during the fast pyrolysis of Shengli brown coal at the temperatures of 773~1173 K in a bench-scale fluidized-bed quartz reactor. Based on the comparison between raw coal and acid-washed coal, we can find that the alkali Na and alkaline Ca were the key reasons for the difference in N evolutions from raw coal and demineralized coal during the pyrolysis. The Na and Ca could efficiently facilitate the formation of NH 3 and inhibit the production of HCN. The metallic species had obvious catalytic effects for the conversion from tar-N to NH 3 . Meantime, the existence of alkali and alkaline metals has enhanced the cracking reactions of coal char, thus reducing the yields of char and char-N. In addition, the relative amount of pyridinic (N-6) in demineralized coal char was higher than that in raw coal, while less quternary type nitrogen (N-Q) and pyrrolic nitrogen (N-5) were found in the demineralized coal char. | |
dc.title | Influence of demineralization using acid wash on N migration and transformation during pyrolysis of Shengli brown coal | |
dc.type | Journal Article | |
dcterms.source.volume | 42 | |
dcterms.source.number | 5 | |
dcterms.source.startPage | 519 | |
dcterms.source.endPage | 526 | |
dcterms.source.issn | 0253-2409 | |
dcterms.source.title | Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology | |
curtin.department | Fuels and Energy Technology Institute | |
curtin.accessStatus | Fulltext not available |
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