A pinch technology-based study of heating and cooling of material streams in a large-scale olefins plant identifies major opportunities for energy savings. Download Complete Article. Energy saving is one of the most important issues associated with cost, regulations and environmental performance in the petroleum and petrochemical industries. Most of the available methods for energy targeting, retrofitting and design of heat exchanger networks are based on the pinch method.
Introduction to Pinch Analysis
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Topic last reviewed: 10 April Sectors: Downstream, Upstream. Pinch analysis is a systematic technique for analysing heat flow through an industrial process, based on fundamental thermodynamics Reference 1. The main application is in the design of heat exchanger networks or preheat trains for high energy efficiency and low emissions, both for new plant designs and retrofits Reference 2 , 3. Pinch methods are also used for debottlenecking processes and to optimize the use of utilities especially steam at various pressure levels , and in improving the energy efficiency of distillation systems Reference 4.
Pinch Technology Approach to Freshwater and Wastewater Minimisation in Brewing Operations
Pinch analysis is a systematic technique for analyzing heat flow through an industrial process, based on fundamental thermodynamics. It incorporates a range of tools of which the best known are the hot and cold composite curves, which represent the overall heat release and heat demand of a process as a function of temperature. By using these tools appropriately it is usually possible to identify opportunities for process heat recovery that are missed when other methods are used.
The primary application of our Pinch Analysis software is to help process engineers and managers in minimization of wasteful utilization of energy in their process plants, and to analyze and study the energy usage involved. Minimization of wasteful utilization of energy in process plants is only one component of energy management for the so-called Total Site. It has to be done in conjunction with simultaneously as well as iteratively optimization of energy generation and supply in the power plants on the site. Therefore, as shown below, we recommend using the Pinch Analysis software along with our Total Site Energy Management TSEM software to get the most benefit from the energy related studies.