Effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coal
Abstract In this paper, the desulphurisation of high sulphur low-rank coal is proposed as a raw material for pulverised coal injection technology. Therefore, the influence of oxidant linear velocity and the size of the coal grain was investigated in a fluidised bed. The hydrodynamic parameters of th...
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doaj-5621e286af194f0f81188e7f746b4af92021-03-02T05:00:54ZengSpringerOpenInternational Journal of Coal Science & Technology2095-82932198-78232018-04-015221322910.1007/s40789-018-0205-6Effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coalSerhiy Pyshyev0Yuriy Prysiazhnyi1Mariia Shved2Marek Kułażyński3Denis Miroshnichenko4Department of Chemical Technology of Oil and Gas Processing, Institute of Chemistry and Chemical Technology, Lviv Polytecnic National UniversityDepartment of Chemical Technology of Oil and Gas Processing, Institute of Chemistry and Chemical Technology, Lviv Polytecnic National UniversityDepartment of Chemical Technology of Oil and Gas Processing, Institute of Chemistry and Chemical Technology, Lviv Polytecnic National UniversityDivision of Chemistry and Technology of Fuel, Faculty of Chemistry, Wroclaw University of Science and TechnologyNational Technical University “Kharkiv Polytechnic Institute” 2Abstract In this paper, the desulphurisation of high sulphur low-rank coal is proposed as a raw material for pulverised coal injection technology. Therefore, the influence of oxidant linear velocity and the size of the coal grain was investigated in a fluidised bed. The hydrodynamic parameters of the fluidised bed including: porosity, Sherwood criterion (diffusion Nusselt number), and mass transfer coefficient (external surface) were calculated. Furthermore, the study examined the effects of intensity and efficiency on the desulphurised coal properties; organic matter, ash, and volatile matter contents. The key changes during the conversion of pyritic sulphur and coal organic matter were subsequently examined. The results showed that the sulphur content (S t d 3.16 wt%) of the low-rank coal, was transformed to (S t d ≤ 1.5 wt%) after desulfurization. Other enhanced properties were: V daf ≤ 38.0 wt%; A d ≤ 10.0 wt%, now suitable for pulverised coal injection technology.http://link.springer.com/article/10.1007/s40789-018-0205-6Low-rank coalOxidative desulphurizationPyriteSulphurPulverised coal injection |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Serhiy Pyshyev Yuriy Prysiazhnyi Mariia Shved Marek Kułażyński Denis Miroshnichenko |
spellingShingle |
Serhiy Pyshyev Yuriy Prysiazhnyi Mariia Shved Marek Kułażyński Denis Miroshnichenko Effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coal International Journal of Coal Science & Technology Low-rank coal Oxidative desulphurization Pyrite Sulphur Pulverised coal injection |
author_facet |
Serhiy Pyshyev Yuriy Prysiazhnyi Mariia Shved Marek Kułażyński Denis Miroshnichenko |
author_sort |
Serhiy Pyshyev |
title |
Effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coal |
title_short |
Effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coal |
title_full |
Effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coal |
title_fullStr |
Effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coal |
title_full_unstemmed |
Effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coal |
title_sort |
effect of hydrodynamic parameters on the oxidative desulphurisation of low rank coal |
publisher |
SpringerOpen |
series |
International Journal of Coal Science & Technology |
issn |
2095-8293 2198-7823 |
publishDate |
2018-04-01 |
description |
Abstract In this paper, the desulphurisation of high sulphur low-rank coal is proposed as a raw material for pulverised coal injection technology. Therefore, the influence of oxidant linear velocity and the size of the coal grain was investigated in a fluidised bed. The hydrodynamic parameters of the fluidised bed including: porosity, Sherwood criterion (diffusion Nusselt number), and mass transfer coefficient (external surface) were calculated. Furthermore, the study examined the effects of intensity and efficiency on the desulphurised coal properties; organic matter, ash, and volatile matter contents. The key changes during the conversion of pyritic sulphur and coal organic matter were subsequently examined. The results showed that the sulphur content (S t d 3.16 wt%) of the low-rank coal, was transformed to (S t d ≤ 1.5 wt%) after desulfurization. Other enhanced properties were: V daf ≤ 38.0 wt%; A d ≤ 10.0 wt%, now suitable for pulverised coal injection technology. |
topic |
Low-rank coal Oxidative desulphurization Pyrite Sulphur Pulverised coal injection |
url |
http://link.springer.com/article/10.1007/s40789-018-0205-6 |
work_keys_str_mv |
AT serhiypyshyev effectofhydrodynamicparametersontheoxidativedesulphurisationoflowrankcoal AT yuriyprysiazhnyi effectofhydrodynamicparametersontheoxidativedesulphurisationoflowrankcoal AT mariiashved effectofhydrodynamicparametersontheoxidativedesulphurisationoflowrankcoal AT marekkułazynski effectofhydrodynamicparametersontheoxidativedesulphurisationoflowrankcoal AT denismiroshnichenko effectofhydrodynamicparametersontheoxidativedesulphurisationoflowrankcoal |
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1724242793433399296 |