“Water and Energy Efficiency in the Process Industries”
Thursday, Nov. 5, 2015
Houston, Texas 77012
This Forum will explore the interaction between water and energy use in the process industries from a number of perspectives. Speakers will address trends in water management in the process industries, drivers for adoption of new technology and strategy, and operating practices to improve water and energy efficiency.
Water Challenges in Refining and Petrochemicals and Industry Response (presentation not available)
David A. Cody
The refining and petrochemical industries represent a sizable portion of the local economy as well as one of the regions larger employers. In addition, they are one of the region’s largest consumers of fresh water. Global trends of tightening environmental regulations coupled with increasing regional drought conditions are driving these industries to rethink their approach on the management of their water systems.
The customer’s need to “do more with less” is driving innovation across the industry. These drivers are requiring the sites to use a larger amount of distressed water streams that have a much greater level of contamination. These water streams often experience a much greater degree of variability in their water quality. To meet these ever-increasing water challenges will require innovative technologies on multiple fronts. These innovations include chemical, mechanical and operational improvements, producing improved performance with a lower total water usage.
Kathey Ferland, University of Texas
Peter Phelps, Phelps Engineering
The “Technology Forum: Sustaining Industrial Energy Efficiency in Process Cooling in a Potentially Water-Short Future” , was convened on June 19, 2013 in Houston, Texas to bring together end-users in chemical plants and refineries with the developers of technologies that provide process cooling. The focus of the Forum was on the energy impacts of cooling applications that use less water.
A common concern across the board was that “water is cheap until it’s gone”, which makes it challenging to engage management and secure capital for technology investment before there is a crisis. One of the challenges is that there are no “apples to apples” comparison of what is at stake when curtailment occurs. Attendees identified the need to be able to compare the performance of different cooling technologies based on capital and operating costs, water, and energy impacts. This presentation reports on the results of this analysis.
Business Unit Leader
Ascend Performance Materials
Integrated petrochemical and refinery complexes use a large amount of water. Some energy losses with water are obvious – steam leaks, leaking traps, and cooling tower vapors. However there are many not so conspicuous losses, especially for sites that purify their own water. Many sites have clarifiers, filters, zeolite units, RO units, and demin units; and pump (energy) large volumes of water around systems. Additionally there are constant water blowdowns from boilers and cooling towers. A good understanding of these unit operations and associated drivers could save significant amounts of water and, in turn, energy. Significant savings from performance monitoring and closer oversight could be accomplished with little capital investments.
CH2M Hill OG&C
Opportunities to optimize the cooling water system can be found in reduction of cooling water requirements, in improving the efficiency of the cooling water treatment, and in improving the cooling tower design. Substantial savings can be achieved through a detailed analysis of the water system, the process it is applied to, and the cooling water loop and its users. The objective of this presentation is to highlight the advantages and disadvantages of different methodologies for analyzing these systems and to present some simple case studies.