Optimization Modeling and Empirical Research on Gasoline Octane Loss Based on Data Analysis

Guo, Jing; Lou, Yujia; Wang, Wanyi; Wu, Xiaoqing

doi:10.1155/2021/5553069

Cited by 2 publications

(1 citation statement)

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“…This combination model can balance the local search and global search, and effectively prevent the algorithm from reaching the local optimal solution. Guo et al [19] proposed an effective method to reduce the octane number by processing the target product with a multi-objective particle swarm optimization algorithm. Based on the concept of substation engineering data space, Xu et al The authors of [20] studied the influence factors and developed a static total investment smart forecasting model of substation engineering.…”

Section: Introductionmentioning

confidence: 99%

Reducing Octane Number Loss in Gasoline Refining Process by Using the Improved Sparrow Search Algorithm

Chen

Zhu

et al. 2023

Sustainability

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Gasoline is the primary fuel used in small cars, and the exhaust emissions from gasoline combustion have a significant impact on the atmosphere. Efforts to clean up gasoline have therefore focused primarily on reducing the olefin and sulfur content of gasoline, while maintaining as much of the octane content as possible. With the aim of minimizing the loss of octane, this study investigated various machine learning algorithms to identify the best self-fitness function. An improved octane loss optimization model was developed, and the best octane loss calculation algorithm was identified. Firstly, the operational and non-operational variables were separated in the data pre-processing section, and the variables were then filtered using the random forest method and the grey correlation degree, respectively. Secondly, octane loss prediction models were built using four different machine learning techniques: back propagation (BP), radial basis function (RBF), ensemble learning representing extreme gradient boosting (XGboost) and support vector regression (SVR). The prediction results show that the XGboost model is optimal. Finally, taking the minimum octane loss as the optimization object and a sulfur content of less than 5µg/g as the constraint, an octane loss optimization model was established. The XGboost prediction model trained above as the fitness function was substituted into the genetic algorithm (GA), sparrow search algorithm (SSA), particle swarm optimization (PSO) and the grey wolf optimization (GWO) algorithm, respectively. The optimization results of these four types of algorithms were compared. The findings demonstrate that among the nine randomly selected sample points, SSA outperforms all other three methods with respect to optimization stability and slightly outperforms them with respect to optimization accuracy. For the RON loss, 252 out of 326 samples (about 77% of the samples) reached 30%, which is better than the optimization results published in the previous literature.

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Section: Introductionmentioning

confidence: 99%