Abstract
Based on information about the low efficiency of the heat conversion on industrial plants, an integration of the existing petroleum-refining plant block is attempted to calculate. Results of research devoted to processing the outcomes of preliminary hydraulic cleaning of straight-run gasoline fraction block on the catalytic reforming section survey are given. The preconditions for reducing the volume of the use of external energy sources due to the maximization of heat recovery in the framework of this energy-technological system are identified. Based on a detailed study of the information about the plant operation and starting from the features of considered technological production scheme, the data analysis of energy consumption is given and the prospects for a pinch-integration are identified. In order to implement the integration of thermal heat exchange network the required number of processing streams that will be taking part in modernization was allocated. The table of streaming data that bringing the core thermophysical properties of each stream, necessary for the implementation of measures for the calculation and design of an improved heat exchangers system of the installation is generated. For an existing process a grid diagram and compound curves, which are capable of visually and numerically represent the available unit’s recovery duty value are built. In accordance with the basic principles of heat exchanger networks integration using pinch analysis method to determine the optimum minimum temperature difference, the new grid diagram and compound curves are designed, as well as the duty of heat exchange equipment is calculated. An upgraded scheme of reconstruction project for preliminary hydraulic cleaning of straight-run gasoline fraction block, which takes into account the new location of heat exchangers, is given. To determine the economic effect of pinch-integration for considered scheme the indicators of annual savings, the annual increase in profits and payback period of capital costs of the enterprise are calculated. Based on received results it was concluded that implementing the developed project into production is advisable.
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Schedule a callMore From: Bulletin of the National Technical University "KhPI". Series: Chemistry, Chemical Technology and Ecology
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