Analysis of combustion characteristics using CPFD in 0.1 MWth oxy-fuel CFB

被引：4

作者：

Go, E. S. ^{[1
]}

Kim, H. W. ^{[1
]}

Kang, S. Y. ^{[2
]}

Keel, S., I ^{[3
]}

Ling, J. L. J. ^{[2
]}

Lee, S. H. ^{[1
,2
]}

机构：

[1] Jeonbuk Natl Univ, Dept Environm & Energy, 567 Baekje Daero, Jeonju Si 54896, Jeollabuk Do, South Korea

[2] Jeonbuk Natl Univ, Dept Mineral Resources Energy Engn, 567 Baekje Daero, Jeonju Si 54896, Jeollabuk Do, South Korea

[3] Korea Inst Machinery & Mat, Environm Syst Res Div, 156 Gajeongbuk Ro, Dajeon 34103, South Korea

来源：

INTERNATIONAL JOURNAL OF NANOTECHNOLOGY | 2022年 / 19卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

circulating fluidised bed; oxy combustion; coal; limestone; CPFD; computational simulation; desulfurisation; CIRCULATING FLUIDIZED-BED; DYNAMICS SIMULATION; EMISSIONS; O-2/CO2; COAL; ANTHRACITE; MODEL; FLOW; SO2; AIR;

D O I：

10.1504/IJNT.2022.122369

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study used computational particle-fluid dynamic (CPFD) analysis techniques to analyse the fluidisation and reaction characteristics in a 0.1 MWth oxy-fuel circulating fluidised bed (oxy-CFB) combustor. An oxy-CFB 3-dimensional model incorporated with various reaction kinetic models as stated in previous studies is used to predict the flue gas compositions. The gas and solid profiles in the oxy-CFB combustor shows a typical CFB structure consisted of dense and lean phase in the combustion chamber. Furthermore, the formation of CaSO4 particles is evidence of a direct desulfurisation reaction between CaCO3 and SO2 in the oxy-CFB combustor. As a result, a continuous direct desulfurisation of CaCO3 occurred in the reactor, which is expected to achieve maximum conversion in the long term.

引用

页码：63 / 74

页数：12

共 38 条

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