الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
A mass exchange network (MEN) is a useful tool to minimize the consumption of specific materials such as hydrogen and freshwater, and also realize pollution prevention in industrial processes. The techniques of mass exchange networks have been widely applied in several applications such as hydrogen integration networks and water-wastewater networks.
The first part of this thesis presents a simulation technique for optimizing the distribution of hydrogen in the hydrogen integration network. A mathematical model has been applied on twelve sources and twelve sinks with different concentrations of hydrogen; the proposed model is solved by LINGO Software version 14.0 and it was formulated as nonlinear Equations. Three case studies were presented to show the validity of the presented program, the results showed a reduction of fresh hydrogen utility in the three case studies by 5%, 3.1% and 0.25% respectively, and the flowrate of hydrogen discharge was decreased by 10%, 7.6% and 0.75% respectively.
The second part of this work has studied the water quality in the Ismailia canal along thirty kilometers; for one year, the physical and chemical parameters were studied to analyze the water quality for six sources and seven agriculture areas. A mathematical model is presented and solved by the LINGO program to draw the optimal wastewater network between six sources and seven agriculture areas; the obtained results have shown the reduction of freshwater consumption from 320 m3/hr to 182.4 m3/hr.
In the third part of this thesis, two mathematical models are proposed to optimize the water inter-plant networks; the first model presents nonlinear Equations that are solved by LINGO program; the obtained results are sent to Excel software by which the obtained water-wastewater inter-plant networks are automatically drawn. LINGO Software is proposed to solve the problems that contain a large number of sources and sinks up to one hundred of sources and one hundred of sinks for single and multiple contaminants up to six contaminants. Three case studies of ATOFINA chemical company, Guangzhou Chinese Sugar factory and Fujian Refining and Petrochemical Company of inter-plant networks are presented to show the applicability of the presented program; the results have shown the reduction percentage of freshwater consumption which are 38.6, 4.74 and 8.64 % respectively.
The fourth part of this work presents three case studies of fertilizer plants, industrial chemical plant and petrochemicals; The data given of these plants is entered into the presented LINGO Software and the results are sent automatically to Excel Software that is used to draw the optimal wastewater network; the obtained results showed the decreasing freshwater consumption by a percentage 52.2, 28, 4.5% respectively.