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Absorption Process for Mitigating Green Oil Formation in Petrochemical Plants

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Bibliographic Details
Title: Absorption Process for Mitigating Green Oil Formation in Petrochemical Plants
Authors: W. Mahmoud Shehata, A. H. A. Hady, F. K. Gad
Source: Chemical and Biochemical Engineering Quarterly, Vol 39, Iss 2, Pp 101-119 (2025)
Publisher Information: Croatian Society of Chemical Engineers, 2025.
Publication Year: 2025
Collection: LCC:Chemical engineering
Subject Terms: absorption process, green oil, water solvent, organic solvents, process simulation, Chemical engineering, TP155-156
Description: The reaction of hydrochloric acid with hydrocarbons in petrochemical plants produces a viscous hydrocarbon compound called green oil. This oil can cause corrosion problems in the internal parts of equipment. As an alternative to the adsorption process used to remove hydrochloric acid, a simulation model is presented to efficiently absorb hydrochloric acid from an off-gas stream from an industrial process. Five suggested or ganic solvents were used in addition to water. Operating conditions that could affect HCl removal were investigated and optimized for all proposed solvents. Furthermore, an eco nomic study was performed for all proposed solvents based on required utility and capital cost estimates. The results showed that glycolic acid followed by ethylene glycol ranked second and third after water among the proposed solvents in terms of highest solubility, lowest solvent flowrate, and lowest capital and utility costs. Design Expert software was used to statistically analyze the simulation results.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 0352-9568
1846-5153
Relation: http://silverstripe.fkit.hr/cabeq/assets/Uploads/03-2-2025.pdf; https://doaj.org/toc/0352-9568; https://doaj.org/toc/1846-5153
DOI: 10.15255/CABEQ.2024.2387
Access URL: https://doaj.org/article/bff7d2e1e0184a9a904c2bd15685205c
Accession Number: edsdoj.bff7d2e1e0184a9a904c2bd15685205c
Database: Directory of Open Access Journals
Description
Abstract:The reaction of hydrochloric acid with hydrocarbons in petrochemical plants produces a viscous hydrocarbon compound called green oil. This oil can cause corrosion problems in the internal parts of equipment. As an alternative to the adsorption process used to remove hydrochloric acid, a simulation model is presented to efficiently absorb hydrochloric acid from an off-gas stream from an industrial process. Five suggested or ganic solvents were used in addition to water. Operating conditions that could affect HCl removal were investigated and optimized for all proposed solvents. Furthermore, an eco nomic study was performed for all proposed solvents based on required utility and capital cost estimates. The results showed that glycolic acid followed by ethylene glycol ranked second and third after water among the proposed solvents in terms of highest solubility, lowest solvent flowrate, and lowest capital and utility costs. Design Expert software was used to statistically analyze the simulation results.
ISSN:03529568
18465153
DOI:10.15255/CABEQ.2024.2387