关键词: 节能节水, 系统优化, 瓶颈辨识

Abstract: Refineries and chemical plants consume great amounts of energy and water. With increasingly stringent national requirements for energy conservation and emission reduction, these enterptises face more and more pressure. Process system integration and optimization technology dealing with an enterprise as a whole, can maximize energy and water saving effects. As an organic whole, a process system necessarily includes some unit processes that form the bottleneck of energy or/and water conservation, whose performance constrains the whole system's overall performance. Identificating such bottleneck, and studying the corresponding solution strategy, will get twice the result with half the effort of energy and water conservation. Based on energy system and water network optimization techniques and methods, this paper analyzes research progress of bottleneck identification on energy conservation, water conservation and plant retrofit for refineries and chemical plants. Current researches focus on bottleneck identification of single-function networks, and further research should pay attention to multi-function networks bottleneck identification.

Key words: energy and water conservation, system optimization, identifying bottlenecks