2015
DOI: 10.1021/acs.energyfuels.5b01821
|View full text |Cite
|
Sign up to set email alerts
|

Simulation Study of Shenmu Coal Pyrolysis by Gas Heat Carrier Based on a Moving Bed

Abstract: Coats-Redfern integral method combined with TG-MS technology was applied to study the evolution of the main pyrolysis products for Shenmu bituminous coal. And a heat transfer, reaction, numerical model of coal pyrolysis by gas heat carrier in a moving-bed reactor is developed. The model can predict the internal temperature profile and pyrolysis volatiles evolution of different coal species as well as the temperature distribution of gas heat carrier versus bed height. The results show that, when the temperature… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

0
9
0
3

Year Published

2018
2018
2024
2024

Publication Types

Select...
6
3

Relationship

0
9

Authors

Journals

citations
Cited by 25 publications
(12 citation statements)
references
References 24 publications
0
9
0
3
Order By: Relevance
“…Moreover, it should be mentioned that the convective heat flux is very sensitive to the relative velocity of the gas-solid phase (|u CG −u coal |). Thus, a moving-bed 19 or a fixed-bed reactor with specific internals 43 that enhance the interparticle mass transfer is suggested for lignite pyrolysis with SHCs to obtain high heating rates. Figure 5 shows the temperature history (a) and transient weight loss fraction of coal (b) along the radial direction within a lignite particle for the base conditions.…”
Section: Numerical Methods For Solving the Modelmentioning
confidence: 99%
“…Moreover, it should be mentioned that the convective heat flux is very sensitive to the relative velocity of the gas-solid phase (|u CG −u coal |). Thus, a moving-bed 19 or a fixed-bed reactor with specific internals 43 that enhance the interparticle mass transfer is suggested for lignite pyrolysis with SHCs to obtain high heating rates. Figure 5 shows the temperature history (a) and transient weight loss fraction of coal (b) along the radial direction within a lignite particle for the base conditions.…”
Section: Numerical Methods For Solving the Modelmentioning
confidence: 99%
“…134 To this goal, different heat carriers have been considered as mediums, which enhance the heat transfer rate and the process efficiency. 135 In this way, sands, 135,136 gaseous compounds like nitrogen, 137 etc. have been considered as heating media.…”
Section: Introductionmentioning
confidence: 99%
“…O leito móvel é particularmente valioso devido a sua condição estável de operação, aquecimento uniforme e ampla faixa de mudança no tempo de contato gás-sólido (LIANG, P. et al 2015), sendo uma técnica de aquecimento ou resfriamento de uma mistura de sólidos granulares e fluido em escoamento concorrente ou contracorrente (BERTOLI, 2000). A compreensão do escoamento multifásico e do comportamento térmico nestes reatores é importante para o projeto e otimização de processos (Yang, et al, 2015).…”
Section: Introductionunclassified