Abstract
The novel device for measuring characteristics of the process that takes place when hydrocarbon liquids are subjected to elevated temperatures is described. The measuring cell has the form of a loop in which circulation is induced by a turbine stirrer. The stirrer contains magnets built into its blades, enabling mixing by a magnetic mixer positioned below the cell. No moving part protrudes from the cell. The fouling process takes place at the hot-wire probe positioned at the centre of the liquid stream. Thermo-graphic images of the cell with circulating liquid are used to establish the type of the flow within the cell. The tests were performed with various types of liquids and versatility of the device demonstrated.
Highlights
During processing, refinery hydrocarbons are heated up usually to temperatures from 250 to 550 °C
The magnitude of the problem appears to be highest in crude oil distillation units, so that the majority of the reports are dealing with crude oil fouling properties[4,5,6]
Reported fouling testing encompasses a wide variety of liquids and their specific compositions encountered in petrochemical industry
Summary
Refinery hydrocarbons are heated up usually to temperatures from 250 to 550 °C This causes the development of various processes resulting in a deposit adhering to the walls of the processing equipment. The fouling of process units walls diminishes the heat transfer significantly making it the major problem in the petrochemical industry[1]. When the decrease in heat transfer efficiency becomes so severe that the required temperature cannot be reached, the operation must be stopped and the equipment cleaned. This causes expenses which are quite high as has been documented in the literature[2,3]. The magnitude of the problem appears to be highest in crude oil distillation units, so that the majority of the reports are dealing with crude oil fouling properties[4,5,6]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Chemical and Biochemical Engineering Quarterly Journal
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
