US EPA

1449007 

Journal Article 

Industrial wastewater collection using a separation technique 

Kralj, AK 

2012 

Yes 

Journal of Industrial and Engineering Chemistry
ISSN: 1226-086X 

18 

4 

1320-1325 

10.1016/j.jiec.2012.01.033 

WOS:000306164400021 

Water is an essential element within normal functioning
throughout the chemical industry. The reuse of water, or more precisely water condensate
collection, is very important during real chemical processes because it can reduce raw materials,
energy losses, and costs, and can improve the operations of energy and process systems. The
effect of industrial activity on the environment has attracted considerable attention over the
past few decades. Industry, therefore, has started looking at methods of reducing the volumes of
produced wastewater. This paper presents the industrial separation of lower and higher
temperature condensates' collection using the heating utility of steam production, by separation
techniques. The existing condensate collection regarding utilities' preparation for steam-
generation may no longer be optimal; the basic intention is that minimal changes in the system
can produce an efficient improvement by using separate collections of low and high-temperature
condensates, and the use of available heat with little heat flow rate loss. This separated water
condensate collection preparation for the utility of steam production by using a separation
technique and MINLP (mixed-integer nonlinear programming) was tested on an existing methanol
process, which allowed for an efficient and additional 7% water condensate collection system for
steam-generation. (c) 2012 The Korean Society of Industrial and Engineering Chemistry. Published
by Elsevier B.V. All rights reserved. 

Wastewater; Condensate collection; Neat flow rate; Raw material; Utilities; MINLP model