Optimization of Vacuum Pyrolysis Process Using Generalized Regression Neural Network

A new empirical technique to construct predictive models of vacuum pyrolysis process is presented in this study. Pyrolysis of biomass for preparing bio-oil was studied on a vacuum pyrolysis system, where rape straw was chosen as the raw material. The experiments ran based on orthogonal experimental...

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Main Authors: Li, Xiaohua (Author), Fan, Yongsheng (Author), Cai, Yixi (Author), Zhao, Weidong (Author), Yin, Haiyun (Author), Yu, Ning (Author)
Format: EJournal Article
Published: Institute of Advanced Engineering and Science, 2014-03-01.
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LEADER 02771 am a22003253u 4500
001 ijeecs3255_1417
042 |a dc 
100 1 0 |a Li, Xiaohua  |e author 
100 1 0 |e contributor 
700 1 0 |a Fan, Yongsheng  |e author 
700 1 0 |a Cai, Yixi  |e author 
700 1 0 |a Zhao, Weidong  |e author 
700 1 0 |a Yin, Haiyun  |e author 
700 1 0 |a Yu, Ning  |e author 
245 0 0 |a Optimization of Vacuum Pyrolysis Process Using Generalized Regression Neural Network 
260 |b Institute of Advanced Engineering and Science,   |c 2014-03-01. 
520 |a A new empirical technique to construct predictive models of vacuum pyrolysis process is presented in this study. Pyrolysis of biomass for preparing bio-oil was studied on a vacuum pyrolysis system, where rape straw was chosen as the raw material. The experiments ran based on orthogonal experimental design method. The operation factors of the system including pyrolysis temperature, system pressure, heating rate and holding time were chosen as input variables, while bio-oil yield and energy transformation ratio were selected as output to establish the prediction models based on Generalized Regression Neural Network (GRNN). The operation factors of the system were optimized for maximizing bio-oil yield and energy transformation ratio, and the optimization result was confirmed by experiments. The results of research showed that the predicted values are fit well with the experimental values, which verifies the effectiveness of the prediction models. Optimal conditions are obtained at pyrolysis temperature of 486.8℃, heating rate of 18.1℃/min, reactor pressure of 5.0kPa and holding time of 55.0min. Confirmation runs give 41.9%, 42.5% and 42.1% of bio-oil yield and 34.3%, 34.0% and 34.9% of energy transformation ratio compared to 43.6% and 35.5% of predicted value. Therefore, the forecasting model based on the GRNN is able to result in good prediction and has research value to the reality. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4496 
540 |a Copyright (c) 2013 Institute of Advanced Engineering and Science 
540 |a http://creativecommons.org/licenses/by-nc-nd/4.0 
546 |a eng 
690 |a vacuum pyrolysis; bio-oil yield; energy transformation ratio; optimization; GRNN 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n Indonesian Journal of Electrical Engineering and Computer Science; Vol 12, No 3: March 2014; 2262-2270 
786 0 |n 2502-4760 
786 0 |n 2502-4752 
786 0 |n 10.11591/ijeecs.v12.i3 
787 0 |n https://ijeecs.iaescore.com/index.php/IJEECS/article/view/3255/1417 
856 4 1 |u https://ijeecs.iaescore.com/index.php/IJEECS/article/view/3255/1417  |z Get fulltext