Effect of fluidizing velocity on gas bypass and solid fraction in a dual fluidized bed gasifier and a cold model
Dual fluidized bed gasifiers （DFBG） are effective in producing nitrogen-free syngas from biomass. How- ever, to improve the gasifier performance, pressure drops and solid fractions within the DFBG system need to be controlled. In this study, the effects of varying the fluidizing velocity in the fast...
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| Veröffentlicht in: | Particuology 2015-02, Vol.18 (1), p.58-65 |
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| creator | Lim, Mook Tzeng Saw, Woei-Lean Pang, Shusheng |
| description | Dual fluidized bed gasifiers （DFBG） are effective in producing nitrogen-free syngas from biomass. How- ever, to improve the gasifier performance, pressure drops and solid fractions within the DFBG system need to be controlled. In this study, the effects of varying the fluidizing velocity in the fast fluidized bed （FFB） on the pressure drops and the solid fractions in the system were investigated in a 100 kW DFBG and in a dual fluidized bed cold model （DFCM）. Based on the experimental results, empirical correlations were developed to predict the height-averaged solid fraction in the bottom section of the FFB. Accuracy and advantages of the correlations were analyzed. The correlation is useful for design and modeling of the DFBG systems where the height-averaged solid fraction is required to be determined. |
| doi_str_mv | 10.1016/j.partic.2014.05.007 |
| format | Article |
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How- ever, to improve the gasifier performance, pressure drops and solid fractions within the DFBG system need to be controlled. In this study, the effects of varying the fluidizing velocity in the fast fluidized bed （FFB） on the pressure drops and the solid fractions in the system were investigated in a 100 kW DFBG and in a dual fluidized bed cold model （DFCM）. Based on the experimental results, empirical correlations were developed to predict the height-averaged solid fraction in the bottom section of the FFB. Accuracy and advantages of the correlations were analyzed. 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The correlation is useful for design and modeling of the DFBG systems where the height-averaged solid fraction is required to be determined.</description><subject>Bypasses</subject><subject>Cold model</subject><subject>Cold pressing</subject><subject>Correlation</subject><subject>Design engineering</subject><subject>Dual fluidized bed</subject><subject>Fluidized beds</subject><subject>Fluidizing</subject><subject>Gasification</subject><subject>Hydrodynamics</subject><subject>Mathematical models</subject><subject>Pressure drop</subject><subject>Steam gasification</subject><subject>冷模</subject><subject>固体成分</subject><subject>固相率</subject><subject>在系统</subject><subject>快速流化床</subject><subject>旁路</subject><subject>流化床气化炉</subject><subject>流化速度</subject><issn>1674-2001</issn><issn>2210-4291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkT1rHDEQhkWwIWfH_yCFSJVm16OP1Z6aQDB2YjCkcS_m9HHRoVutpT3D-ddHztlpUwwqZp53mEeEfGbQM2DqetfPWJZoew5M9jD0AOMHsuKcQSe5ZmdkxdQoOw7APpKLWncAiisuVmS-DcHbheZAQzpEF1_itKXPPmUblyPNE91ipZvjjLVSnBytOUVHQ0G7xNaNE0XqDpjece_oplWjYoi-_GWQ2pwc3Wfn0ydyHjBVf_X2XpLHu9vHm5_dw68f9zffHzorlFo6XGvNQA5aCwmICgTatQiiZY_BAQNnpWSMjxa9UNILPawdDlxgGDduFJfk6yl2Lvnp4Oti9rFanxJOPh-qYUrptdQaWBuVp1Fbcq3FBzOXuMdyNAzMq1-zMye_5tWvgcE0vw37dsJ8u-K5nWqqjX6y3sXSjBqX4_8Cvrzt_Z2n7VPz_m-xUmIcZfsj8QfHg5GF</recordid><startdate>20150201</startdate><enddate>20150201</enddate><creator>Lim, Mook Tzeng</creator><creator>Saw, Woei-Lean</creator><creator>Pang, Shusheng</creator><general>Elsevier B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>20150201</creationdate><title>Effect of fluidizing velocity on gas bypass and solid fraction in a dual fluidized bed gasifier and a cold model</title><author>Lim, Mook Tzeng ; Saw, Woei-Lean ; Pang, Shusheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c366t-a899104599340aa603ac83f3bed7fd010dc441127cae364e3958da523af7bd73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Bypasses</topic><topic>Cold model</topic><topic>Cold pressing</topic><topic>Correlation</topic><topic>Design engineering</topic><topic>Dual fluidized bed</topic><topic>Fluidized beds</topic><topic>Fluidizing</topic><topic>Gasification</topic><topic>Hydrodynamics</topic><topic>Mathematical models</topic><topic>Pressure drop</topic><topic>Steam gasification</topic><topic>冷模</topic><topic>固体成分</topic><topic>固相率</topic><topic>在系统</topic><topic>快速流化床</topic><topic>旁路</topic><topic>流化床气化炉</topic><topic>流化速度</topic><toplevel>online_resources</toplevel><creatorcontrib>Lim, Mook Tzeng</creatorcontrib><creatorcontrib>Saw, Woei-Lean</creatorcontrib><creatorcontrib>Pang, Shusheng</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Particuology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lim, Mook Tzeng</au><au>Saw, Woei-Lean</au><au>Pang, Shusheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of fluidizing velocity on gas bypass and solid fraction in a dual fluidized bed gasifier and a cold model</atitle><jtitle>Particuology</jtitle><addtitle>China Particuology</addtitle><date>2015-02-01</date><risdate>2015</risdate><volume>18</volume><issue>1</issue><spage>58</spage><epage>65</epage><pages>58-65</pages><issn>1674-2001</issn><eissn>2210-4291</eissn><abstract>Dual fluidized bed gasifiers （DFBG） are effective in producing nitrogen-free syngas from biomass. 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| language | eng |
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| source | Elsevier ScienceDirect Journals; Alma/SFX Local Collection |
| subjects | Bypasses Cold model Cold pressing Correlation Design engineering Dual fluidized bed Fluidized beds Fluidizing Gasification Hydrodynamics Mathematical models Pressure drop Steam gasification 冷模 固体成分 固相率 在系统 快速流化床 旁路 流化床气化炉 流化速度 |
| title | Effect of fluidizing velocity on gas bypass and solid fraction in a dual fluidized bed gasifier and a cold model |
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