Optimization of Water and Wastewater Network Petroleum Refinery by MINLP and ECTA Methods

Water recycling is one of the effective ways for overcoming the water crisis. The various methods and techniques for the design of water allocation systems have been developed and used water in industry reduced to an acceptable level. Water pinch technology is a systematic technique for analyzing water networks and reducing related costs. Also this technique is used for minimizing costs, establishing the relationship between operating costs and capital costs inside the compliance with standards of environment. Water Pinch is optimization method to determine targets technique also appropriate changes to suggest the design of network with the possibility to maximize the reuse of water regeneration, reuse / recycle.
Findings: In this paper simulation and optimization of oil refinery water network using the software Aspen Water and a graphical-mathematical method Composite Table Algorithm (CTA) has been used for a dramatic reduction in water consumption and waste water refinery which comes to a distribution network. Therefore Extended Composite Table Algorithm is presented to model regeneration-reuse/recycle.
Discussion and using Composite Table Algorithm is presented better results to minimize flow rate of fresh water, waste water and costs of fresh water supply and discharge comparison with Aspen water. Then the Extended Composite Table Algorithm method is obtained highly successful results in optimization water network by applying regeneration unit inside reuse/recycle