Biobased slurry processes and large-scale continuous chemical production share many similarities. These concern not only process technologies equipment but also staffing (positions/educations) plant operations, including methods for planning, scheduling, control. Process Systems Engineering (PSE) approaches have been applied successfully in to optimize of high complexity. By replacing rules-of-...

This paper applies hybrid modeling method based optimal control in industrial process. Hybrid modeling method combines a priori information with a nonlinear residual compensation technique to build a global model which predicts alumina raw pulp slurry quality. Process control is accomplished based on blending expert knowledge with multi-objective hierarchy reasoning approach. Through the coordi...

OF DOCTORAL DISSERTATION HELSINKI UNIVERSITY OF TECHNOLOGY P.O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author Tiina Marjatta Komulainen Name of the dissertation Novel modeling and control approach for performance improvement of an industrial copper solvent extraction process Manuscript submitted 21.5.2007 Manuscript revised 9.10.2007 Date of the defence 30.11.2007 Monograph Article dissertati...

abstract: in this paper, an exergy analysis approach is proposed for optimal design of distillation column by using simulated annealing algorithm. first, the simulation of a distillation column was performed by using the shortcut results and irreversibility in each tray was obtained. the area beneath the exergy loss profile was used as irreversibility index in the whole column. then, first opti...

a real-time optimization (rto) strategy incorporating the fuzzy sets theory is developed, where the problem constraints obtained from process considerations are treated in fuzzy environment. furthermore, the objective function is penalized by a fuzzified form of the key process constraints. to enable using conventional optimization techniques, the resulting fuzzy optimization problem is then re...

Computer technologies, sensor technologies, fiber optics, high-performance network technologies, mobile devices, wireless sensor networks, and powerful data repositories have permeated all layers of industry and opened the door for unprecedented data analytic capabilities used to improve equipment operation, equipment design, process quality, and product quality. Powerful and inexpensive sensor...

operating parameters and membrane characteristics strongly affect the performance of electrodialysis reversal systems. the most impactful factors are applied voltage, flow rate, temperature, initial feed composition, and ion exchange membrane characteristics; the ph of the feed also has an effect, although to a lesser extent. to determine more precisely how all of these factors impact performan...