Treffer: ANN for the prediction of isobutylene dimerization through catalytic distillation for a preliminary energy and environmental evaluation

Title:
ANN for the prediction of isobutylene dimerization through catalytic distillation for a preliminary energy and environmental evaluation
Source:
AIMS Environmental Science, Vol 11, Iss 2, Pp 157-183 (2024)
Publisher Information:
American Institute of Mathematical Sciences (AIMS), 2024.
Publication Year:
2024
Document Type:
Fachzeitschrift Article<br />Other literature type
ISSN:
2372-0352
DOI:
10.3934/environsci.2024009
DOI:
10.60692/fdqen-edj54
DOI:
10.60692/2wn12-c9r63
Accession Number:
edsair.doi.dedup.....fba6eb417b0bf337b685320db28e22e8
Database:
OpenAIRE

Weitere Informationen

This study aimed to develop an artificial neural network (ANN) capable of predicting the molar concentration of diisobutylene (DIB), 3, 4, 4-trimethyl-1-pentene (DIM), and tert-butyl alcohol (TBA) in the distillate and residue streams within three specific columns: reactive (CDC), high pressure (ADC), and low pressure (TDC). The process simulation was conducted using DWSIM, an open-source platform. Following its validation, a sensitivity analysis was performed to identify the operational variables that influenced the molar fraction of DIB, DIM, and TBA in the outputs of the three columns. The input variables included the molar fraction of isobutylene (IB) and 2-butene (2-Bu) in the butane (C4) feed, the temperature of the C4 and TBA feeds, and the operating pressure of the CDC, ADC, and TDC columns. The network's design, training, validation, and testing were performed in MATLAB using the Neural FittinG app. The network structure was based on the Bayesian regularization (BR) algorithm, that consisted of 7 inputs and seven outputs with 30 neurons in the hidden layer. The designed, trained, and validated ANN demonstrated a high performance, with a mean squared error (MSE) of 0.0008 and a linear regression coefficient (R) of 0.9946. The statistical validation using an analysis of variance (ANOVA) (p-value > 0.05) supported the ANN's capability to reliably predict molar fractions. Future research will focus on the in-situ validation of the predictions and explore hybrid technologies for energy and environmental optimization in the process.