The Optimization-Based Design and Synthesis of Water Network for Water Management in an Industrial Process: Refinery Effluent Treatment Plant

CATEGORY: WATER NETWORKS 
The Optimization-Based Design and Synthesis of Water Network for Water Management in an Industrial Process: Refinery Effluent Treatment Plant

Type	Journal Article
Author	Natthapong Sueviriyapan
Author	Kitipat Siemanond
URL	Free Full Text Source:  http://www.aidic.it/cet/14/39/023.pdf
Volume	39
Publication	CHEMICAL ENGINEERING
Date	2014
Abstract	The increasing awareness of the sustainability of water resources has become an important issue. Many process industries contribute to high water consumption and wastewater generation. Problems in industrial water management include the processing of complex contaminants in wastewater, selection of wastewater treatment technologies, as well as water allocation, limited reuse , and recycling strategies. Therefore , a water and wastewater treatment network design requires the integration of both economic and environmental perspective s. The aim of this work was to modify and develop a generic model - based synthesis process for a water/wastewater treatment network design problem utilizing the framework of Quaglia et al. (2013 ) in order to effectively design, synthesize , and optimize an industrial water management problem using different scenarios (both existing and retrofit system design). The model - based mathematical problem was formulated as mixed integer linear (MILP) and mixed integer n on - linear programming (MINLP) and strived to identify the best wastewater treatment processes among a set of predefined alternatives that produce a minimum total annualized cost , while meeting all wastewater specification criteria. In addition, the effluent options (for different retrofit scenarios) in the modified superstructure could be set as discharge only, zero liquid discharge (total recycling) , or a combination of recycling and discharge with the aim of minimizing the amount of fresh process water consumption through the recycling of treated wastewater. Also, an industrial case study of a refinery wastewater treatment plant was implemented. Alternative recycling schemes (retrofit design problem) were proposed and solved. The retrofit design solution using developed generic model - based synthesis offered a preliminary guideline for a better wastewater treatment network in terms of economic benefits and environmental impact compared to the existing process and accomplished it in an effective time frame.

Optimal reconfiguration of water networks based on properties

CATEGORY: WATER NETWORKS
Clean Technologies and Environmental Policy, May 2013
Optimal reconfiguration of water networks based on properties
César Sotelo-Pichardo, José María Ponce-Ortega, Fabricio Nápoles-Rivera, Medardo Serna-González, Mahmoud M. El-Halwagi, Sergio Frausto-Hernández
1. Chemical Engineering Department, Universidad Michoacana de San Nicolás de Hidalgo, 58060, Morelia, Michoacán, Mexico
2. Chemical Engineering Department, Texas A&M University, College Station, TX, 77843, USA
3. Adjunct Faculty at the Chemical and Materials Engineering Department, King Abdulaziz University, Jeddah, Saudi Arabia
4. Biochemical and Chemical Engineering Department, Instituto Tecnológico de Aguascalientes, 20256, Aguascalientes, Aguascalientes, Mexico
Abstract
Authors describe a mathematical programming model for the reconfiguration of existing water networks based on the stream properties that impact the performance of the process units and the environment. The model simultaneously evaluates the repiping of the existing network through the placement/reassignment of the existing treatment units, and the addition of new treatment units while addressing environmental constraints.
In addition, it accounts for the options of process modification and increased capacity of the plant. The purpose of the optimization model is to minimize the total annualized cost of the system, which incorporates the capital investment associated with process retrofitting and the operating cost which includes the cost of fresh resources. Several case studies are presented to illustrate.
Full Text Source (Subscription or Fee): http://link.springer.com/article/10.1007/s10098-013-0631-5#

Application of circulation water processing technology in oil refinery

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet) XianNing, 16-18 April 2011, page(s): 1079 - 1081
Application of circulation water processing technology in oil refinery
Lan Li; Sci. & Technol. Group, China Univ. of Pet. (East China), Dongying, China  
Abstract
Describes a whole filtering technology for circulating water by using intelligent differential pressure filter in refinery circulating water system.
Circulating water quality is improved and filling water dosage in water circulating system is reduced according to the measures of setting bottom blowdown in the bottom of cold water pool, increasing monitoring and management of circulating water.  A case study illustrates the efficacy of this technology.
Full Text Source (Subscription or Fee): http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5768987

Optimisation of petroleum refinery water network systems retrofit incorporating reuse, regeneration and recycle strategies

The Canadian Journal of Chemical Engineering, Volume 90, Issue 1, pages 137–143, February 2012
Optimisation of petroleum refinery water network systems retrofit incorporating reuse, regeneration and recycle strategies
Cheng Seong Khor^1,2,
Nilay Shah^1,*,
n.shah@imperial.ac.uk
Shuhaimi Mahadzir²,
Ali  Elkamel^3
1 Department of Chemical Engineering, Centre for Process Systems Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
² Chemical Engineering Department, Universiti Teknologi Petronas, Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia
³ Department of Chemical Engineering, Faculty of Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1
Abstract
Scarcities in freshwater supply and increasingly stringent rules on wastewater discharges are major concerns for petroleum refineries. Authors develop an optimisation framework for refinery water network systems design and retrofit integrating the complementary advantageous features of water pinch analysis (WPA).
The framework incorporates water minimisation strategies by postulating a superstructure representation that embeds all feasible flowsheet alternatives for implementing water reuse, regeneration and recycle (W3R) opportunities. A nonlinear programming (NLP) model is then formulated based on the superstructure.  Computational experiments on a real-world case study are conducted using the GAMS/CONOPT3 modelling language platform. Post-optimality analysis on the numerical results are performed to achieve the desired water reuse quality.  The result is a viable framework to aid decision-making in water network systems synthesis.
Free Full Text Source: http://onlinelibrary.wiley.com/doi/10.1002/cjce.20651/full