FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2603102014> ?p ?o ?g. }

• W2603102014 abstract "More than 20% of the cathode copper is annually produced by copper leaching, solvent extraction and electrowinning processes. The focus in process technology has been on research and capital intensive development of the process equipment and chemicals. However, the financial benefits gained through an advanced control system would be significant. An advanced control system would maximize production by running the process closer to the optimal operating point, and increase the production of the first quality copper cathode by decreasing the variation in key process variables. The lack of adequate dynamic process models for industrial applications has, to date, prevented the development of advanced process control systems.Therefore, the first aim of this thesis is to develop dynamic models to describe the behaviour of an industrial copper solvent process and to facilitate control system development. The second aim of this thesis is to develop an advanced control system for the copper solvent extraction process, and to verify that the performance and profitability of an industrial copper solvent extraction process can be significantly increased by utilizing the advanced process control system.In the process model, the mass transfer of copper in the mixer-settler units is described by means of dynamic, modified ideal mixing and plug flow models. The equilibrium value for the ideal mixing model is calculated on the basis of the steady state McCabe-Thiele diagram. The model utilizes industrial online and offline measurements. The unit process models are combined according to the case plant flowsheet. Based on the process models, a control hierarchy is developed for the case copper solvent extraction process. The optimization level in the hierarchy consists of an optimization algorithm that maximizes the production of the copper solvent extraction process and provides setpoints for the stabilizing control level. The stabilizing control level consists of a single input-single output control strategy employing two PI controllers or, alternatively, a multi input-multi output control strategy using the model predictive control (MPC).The dynamic models are tested by comparing the simulated data with the industrial data. The controller performances are tested for setpoint tracking and disturbance rejection in the simulation environment with step input changes. The benefits of the control system are assessed by comparing the variation in the controlled variables and the total copper production to the data collected from the process under manual control.The dynamic models are tested with two data sets representing the normal operation of the industrial case copper solvent extraction plant. The models follow the output copper concentration trends smoothly for the major input changes in the flow rates and copper concentrations, and the residuals between the simulated data and the industrial measurements are sufficiently small. The average absolute error is 1-3 % of the mean value of the output copper concentrations.The…" @default.
• W2603102014 created "2017-04-07" @default.
• W2603102014 creator A5034693714 @default.
• W2603102014 date "2007-11-30" @default.
• W2603102014 modified "2023-09-24" @default.
• W2603102014 title "Novel modeling and control approach for performance improvement of an industrial copper solvent extraction process" @default.
• W2603102014 cites W156176260 @default.
• W2603102014 cites W1978956894 @default.
• W2603102014 cites W2026570922 @default.
• W2603102014 cites W2751335644 @default.
• W2603102014 cites W3156744082 @default.
• W2603102014 hasPublicationYear "2007" @default.
• W2603102014 type Work @default.
• W2603102014 sameAs 2603102014 @default.
• W2603102014 citedByCount "0" @default.
• W2603102014 crossrefType "journal-article" @default.
• W2603102014 hasAuthorship W2603102014A5034693714 @default.
• W2603102014 hasConcept C111919701 @default.
• W2603102014 hasConcept C119599485 @default.
• W2603102014 hasConcept C127413603 @default.
• W2603102014 hasConcept C155386361 @default.
• W2603102014 hasConcept C174998907 @default.
• W2603102014 hasConcept C17500928 @default.
• W2603102014 hasConcept C21547014 @default.
• W2603102014 hasConcept C21880701 @default.
• W2603102014 hasConcept C41008148 @default.
• W2603102014 hasConcept C76956256 @default.
• W2603102014 hasConcept C98045186 @default.
• W2603102014 hasConceptScore W2603102014C111919701 @default.
• W2603102014 hasConceptScore W2603102014C119599485 @default.
• W2603102014 hasConceptScore W2603102014C127413603 @default.
• W2603102014 hasConceptScore W2603102014C155386361 @default.
• W2603102014 hasConceptScore W2603102014C174998907 @default.
• W2603102014 hasConceptScore W2603102014C17500928 @default.
• W2603102014 hasConceptScore W2603102014C21547014 @default.
• W2603102014 hasConceptScore W2603102014C21880701 @default.
• W2603102014 hasConceptScore W2603102014C41008148 @default.
• W2603102014 hasConceptScore W2603102014C76956256 @default.
• W2603102014 hasConceptScore W2603102014C98045186 @default.
• W2603102014 hasLocation W26031020141 @default.
• W2603102014 hasOpenAccess W2603102014 @default.
• W2603102014 hasPrimaryLocation W26031020141 @default.
• W2603102014 hasRelatedWork W1567563924 @default.
• W2603102014 hasRelatedWork W1585054387 @default.
• W2603102014 hasRelatedWork W1981440594 @default.
• W2603102014 hasRelatedWork W1987520559 @default.
• W2603102014 hasRelatedWork W1991916084 @default.
• W2603102014 hasRelatedWork W2021680864 @default.
• W2603102014 hasRelatedWork W2177556002 @default.
• W2603102014 hasRelatedWork W2370432568 @default.
• W2603102014 hasRelatedWork W2555272460 @default.
• W2603102014 hasRelatedWork W2614369874 @default.
• W2603102014 hasRelatedWork W2910805264 @default.
• W2603102014 hasRelatedWork W2921893737 @default.
• W2603102014 hasRelatedWork W2922986798 @default.
• W2603102014 hasRelatedWork W2950459301 @default.
• W2603102014 hasRelatedWork W3004869542 @default.
• W2603102014 hasRelatedWork W3174716722 @default.
• W2603102014 hasRelatedWork W3176514926 @default.
• W2603102014 hasRelatedWork W3201209439 @default.
• W2603102014 hasRelatedWork W2827622681 @default.
• W2603102014 hasRelatedWork W2832752643 @default.
• W2603102014 isParatext "false" @default.
• W2603102014 isRetracted "false" @default.
• W2603102014 magId "2603102014" @default.
• W2603102014 workType "article" @default.