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×÷ÕߣºWANG QING, WANG XUDONG, LIU HONGPENG, JIA CHUNXIA
ÌâÄ¿£ºSTUDY OF THE COMBUSTION MECHANISM OF OIL SHALE SEMI-COKE WITH RICE STRAW BASED ON GAUSSIAN MULTI-PEAK FITTING AND PEAK-TO-PEAK  METHODS
ÆÚ¿¯£ºOil Shale
2013, 30(2)
pp157-172.
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Accession number:        

20132316394234
          Title:         Study of the combustion mechanism of oil shale semi-coke with rice straw based on gaussian multi-peak fitting and peak-to-peak methods
          Authors:         Wang, Qing1 ; Wang, Xudong1; Liu, Hongpeng1; Jia, Chunxia1
          Author affiliation:         1 Engineering Research Centre of Oil Shale Comprehensive Utilization Ministry of Education, Northeast Dianli University, Jilin 132012, Jilin, China
          Corresponding author:         Wang, Q. (rlx888@126.com)
          Source title:         Oil Shale
          Abbreviated source title:         Oil Shale
          Volume:         30
          Issue:         2
          Issue date:         2013
          Publication year:         2013
          Pages:         157-172
          Language:         English
          ISSN:         0208189X
          E-ISSN:         17367492
          Document type:         Journal article (JA)
          Publisher:         Estonian Academy Publishers, Kohtu 6, Tallinn, 10130, Estonia
          Abstract:         In this research, a series of experiments on combustion of Huadian oil shale semi-coke and rice straw as well as their mixture were conducted at different heating rates (10, 20, 50 and 80 ¡ãC/min) under atmospheric pressure, using a Perkin Elmer thermogravimetric analyzer. Combustion characteristics were investigated at different proportions of materials (L1, L2, L3, L4 and L5) and at different heating rates. The results revealed that the point of ignition and burnout shifted to lower temperature with increasing rice straw proportion in the mixture. In the combustion process, the interaction between the mixture components mainly occurred in the temperature range of 400 to 600 ¡ãC. It was found that in this stage the reaction of bimodal components of semi-coke and rice straw took place. Besides, using the Gaussian multi-peak fitting method it was established that the derivative mass loss (DTG) curves displayed an overlapping peak, which consisted of three sub-peaks corresponding to the components of the blend. Moreover, based on the three sub-peaks, kinetic parameters and feature values were found employing the peak-to-peak method. The results showed that the reaction order of various sub-peaks for samples L1, L2, L3 and L4 was 1.17 to 2.27. The activation energies of sub-peaks were determined to be 21.89-99.79 KJ/mol throughout the analysis of the combustion mechanism. It was concluded that the model can be applied to determining combustion characteristics. © 2013 Estonian Academy Publishers.
          Number of references:         33
          Main heading:         Combustion
          Controlled terms:         Activation energy  -  Atmospheric pressure  -  Enzyme kinetics  -  Gaussian distribution  -  Heating rate  -  Mixtures  -  Oil shale  -  Oil shale processing
          Uncontrolled terms:         Combustion characteristics  -  Different proportions  -  Fitting method  -  Oil shale semi cokes  -  Peak-to-peak  -  Rice straws  -  Semi-coke  -  Thermogravimetric analyzers
          Classification code:         922.1 Probability Theory -  802.3 Chemical Operations -  802.2 Chemical Reactions -  801.4 Physical Chemistry -  641.2 Heat Transfer -  521.1 Fuel Combustion -  513.1 Petroleum Refining, General -  512.1 Petroleum Deposits -  443.1 Atmospheric Properties
          DOI:         10.3176/oil.2013.2.06
          Database:         Compendex
                  Compilation and indexing terms, © 2013 Elsevier Inc.
2Â¥2013-08-27 10:30:12
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