Linked Life Data

19664917

Source:http://linkedlifedata.com/resource/pubmed/id/19664917

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
24
pubmed:dateCreated
2009-8-31
pubmed:abstractText
In this paper, the effects of fluidization velocity, bed temperature and fuel feeding rate on the defluidization time and agglomerate fraction in the fluidized bed combustion of rice straw were studied. The fuel ash, necks in agglomerates and coating layers of bed particles were studied by means of the scanning electron microscope, coupled with energy-dispersive spectroscopy (SEM/EDS). Results showed that the stickiness of bed particles induced by coating layers is the direct reason for bed defluidization. The alkali metals such as K and Na mainly exist in the outer layer of rice straw particles. During combustion the high temperature can cause the alkali species melting and coating the surfaces of ash particles. Consequently, ash particles become sticky and tend to adhere to the surfaces of bed particles. The large-sized ash particles may act as the necks in the formation of agglomerates. The small-sized ash particles may contribute to the formation of coating layers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1873-2976
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
100
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6505-13
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
The role of ash particles in the bed agglomeration during the fluidized bed combustion of rice straw.
pubmed:affiliation
School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China. liuhuanpeng@hit.edu.cn
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't