Abstract
The natural gas purification plant is the upstream of the natural gas supply chain. Its operating parameters have an important influence on natural gas supply chain system analysis, pipeline scheduling, inventory management and other aspects of the natural gas supply chain. Energy Performance Index (EnPI) is introduced in this paper to judge the energy consumption of the purification plant. A detailed model is developed by Aspen HYSYS. The operating variables are optimized by the particle swarm algorithm, and then the operating variables are input into the model to calculate the unit energy consumption of the purification plant. Through the optimization, the purification plant can be operated with low energy consumption.
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