A Novel Optimization Method Using the Box–Behnken Design Integrated with a Back Propagation Neural Network–Genetic Algorithm for Hydrogen Purification
Pressure swing adsorption (PSA) technology is among the most efficient techniques for purifying and separating hydrogen. A layered adsorption bed composed of activated carbon and zeolite 5A for a gas mixture (H<sub>2</sub>: 56.4 mol%, CH<sub>4</sub>: 26.6 mol%, CO: 8.4 mol%,...
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2024-12-01
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| author | Nannan Zhang Sumeng Hu Qianqian Xin |
| author_facet | Nannan Zhang Sumeng Hu Qianqian Xin |
| author_sort | Nannan Zhang |
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| description | Pressure swing adsorption (PSA) technology is among the most efficient techniques for purifying and separating hydrogen. A layered adsorption bed composed of activated carbon and zeolite 5A for a gas mixture (H<sub>2</sub>: 56.4 mol%, CH<sub>4</sub>: 26.6 mol%, CO: 8.4 mol%, N<sub>2</sub>: 5.5 mol%, CO<sub>2</sub>: 3.1 mol%) PSA model was built. The simulation model was validated using breakthrough curves. Then, a six-step PSA cycle model was built, and the purification performance was studied. The Box–Behnken design (BBD) method was utilized in Design Expert software (version 10) to optimize the PSA purification performance. The independent optimization parameters included the adsorption time, the pressure equalization time, and the feed flow rate. Quadratic regression models can be derived to represent the responses of purity and productivity. To explore a better optimization solution, a novel optimization method using machine learning with a back propagation neural network (BPNN) was then proposed, and a kind of heuristic algorithm–genetic algorithm (GA) was introduced to enhance the architecture of the BPNN. The predicted outputs of hydrogen production using two kinds of models based on the BPNN–GA and the BBD method integrated with the BPNN–GA (BBD–BPNN–GA). The findings revealed that the BBD–BPNN–GA model exhibited a mean square error (MSE) of 0.0005, with its R–value correlation coefficient being much closer to 1, while the BPNN–GA model exhibited an MSE of 0.0035. This suggests that the BBD–BPNN–GA model has a better performance, as evidenced by the lower MSE and higher correlation coefficient compared to the BPNN–GA model. |
| format | Article |
| id | doaj-art-58a2f9260a4d4d6bb6842836069559c2 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
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| series | Applied Sciences |
| spelling | doaj-art-58a2f9260a4d4d6bb6842836069559c22025-01-10T13:14:34ZengMDPI AGApplied Sciences2076-34172024-12-0115114010.3390/app15010140A Novel Optimization Method Using the Box–Behnken Design Integrated with a Back Propagation Neural Network–Genetic Algorithm for Hydrogen PurificationNannan Zhang0Sumeng Hu1Qianqian Xin2School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaSchool of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaSchool of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, ChinaPressure swing adsorption (PSA) technology is among the most efficient techniques for purifying and separating hydrogen. A layered adsorption bed composed of activated carbon and zeolite 5A for a gas mixture (H<sub>2</sub>: 56.4 mol%, CH<sub>4</sub>: 26.6 mol%, CO: 8.4 mol%, N<sub>2</sub>: 5.5 mol%, CO<sub>2</sub>: 3.1 mol%) PSA model was built. The simulation model was validated using breakthrough curves. Then, a six-step PSA cycle model was built, and the purification performance was studied. The Box–Behnken design (BBD) method was utilized in Design Expert software (version 10) to optimize the PSA purification performance. The independent optimization parameters included the adsorption time, the pressure equalization time, and the feed flow rate. Quadratic regression models can be derived to represent the responses of purity and productivity. To explore a better optimization solution, a novel optimization method using machine learning with a back propagation neural network (BPNN) was then proposed, and a kind of heuristic algorithm–genetic algorithm (GA) was introduced to enhance the architecture of the BPNN. The predicted outputs of hydrogen production using two kinds of models based on the BPNN–GA and the BBD method integrated with the BPNN–GA (BBD–BPNN–GA). The findings revealed that the BBD–BPNN–GA model exhibited a mean square error (MSE) of 0.0005, with its R–value correlation coefficient being much closer to 1, while the BPNN–GA model exhibited an MSE of 0.0035. This suggests that the BBD–BPNN–GA model has a better performance, as evidenced by the lower MSE and higher correlation coefficient compared to the BPNN–GA model.https://www.mdpi.com/2076-3417/15/1/140back propagation neural networkgenetic algorithmBox–Behnken designoptimizationhydrogen purification |
| spellingShingle | Nannan Zhang Sumeng Hu Qianqian Xin A Novel Optimization Method Using the Box–Behnken Design Integrated with a Back Propagation Neural Network–Genetic Algorithm for Hydrogen Purification Applied Sciences back propagation neural network genetic algorithm Box–Behnken design optimization hydrogen purification |
| title | A Novel Optimization Method Using the Box–Behnken Design Integrated with a Back Propagation Neural Network–Genetic Algorithm for Hydrogen Purification |
| title_full | A Novel Optimization Method Using the Box–Behnken Design Integrated with a Back Propagation Neural Network–Genetic Algorithm for Hydrogen Purification |
| title_fullStr | A Novel Optimization Method Using the Box–Behnken Design Integrated with a Back Propagation Neural Network–Genetic Algorithm for Hydrogen Purification |
| title_full_unstemmed | A Novel Optimization Method Using the Box–Behnken Design Integrated with a Back Propagation Neural Network–Genetic Algorithm for Hydrogen Purification |
| title_short | A Novel Optimization Method Using the Box–Behnken Design Integrated with a Back Propagation Neural Network–Genetic Algorithm for Hydrogen Purification |
| title_sort | novel optimization method using the box behnken design integrated with a back propagation neural network genetic algorithm for hydrogen purification |
| topic | back propagation neural network genetic algorithm Box–Behnken design optimization hydrogen purification |
| url | https://www.mdpi.com/2076-3417/15/1/140 |
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