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Displaying 241 - 260 of 1612 stories.
January 1, 2012
As we round the corner from 2011 to 2012, economists are painting dimming pictures for global economic recovery. For instance, a report from IHS (Lexington, Mass.; www.ihs.com) chief economist Nariman Behravesh says, “World growth will slow in 2012 — the only question is how much.” Meanwhile, Kevin Swift, chief economist at the American Chemistry Council (ACC; Washington, D.C....
http://www.che.com/extras/pdf/The-game-changer-for-2012_8820.html
January 1, 2012
At the Chicago AIChE meeting last spring, Henry Kister and Mike Pritchett named the distillation symposium in honor of James R. Fair, who had recently passed away. Fair was probably best known for his leadership of the Separations Research Program (SRP) of the University of Texas at Austin. Fair and Jimmy Humphrey founded SRP in 1984, and a significant part of Fair’s legacy is continued through the...
http://www.che.com/extras/pdf/A-neighborly-research-organization_8826.html
January 1, 2012
In professional life, the influences that teach us, inspire us and drive us to succeed tend to come more from individuals than corporations. If you would like to bring recognition to someone whose excellence in chemical engineering you admire, consider nominating him or her for Chemical Engineering’s 2012 Personal Achievement Award. The nomination period is now open. The aim of this award, which...
http://www.che.com/extras/pdf/Personal-Achievement-Award-Opens_8830.html
January 1, 2012
Mechanical integrity is an essential consideration in heat exchanger design. The most common threat to this integrity is tube bundle vibration. So, the computer programs used for heat exchanger design incorporate procedures that assess this threat. However, such analysis is generally undertaken after exchanger geometry has been identified. The result can be that geometry that is optimal in terms of thermal...
http://www.che.com/extras/pdf/Designing-Shell-and-Tube-Heat-Exchangers-Avoid-Vibration-From-The-Start_8834.html
January 1, 2012
Projects have been undertaken by nations, private enterprises and individuals for more years than recorded history. Over the last three decades, project execution in the chemical process industries (CPI) has become almost standardized, with the general adoption of certain well-known project management procedures including the Front-end Loading (FEL) process and the “Body of Knowledge.” Those...
http://www.che.com/extras/pdf/Ten-Tips-For-Smart-Project-Managers_8835.html
January 1, 2012
Plant Watch Linde to build hydrogen plant for chemical complex in China December 5, 2011 — The Linde Group (Munich, Germany; www.linde.com) plans to build and operate a new hydrogen plant in the Jilin Chemical Industrial Park in China. The company will invest around €42 million in the first phase of this project. The plant will produce 25,000 Nm3/h high-purity hydrogen and is expected to come...
http://www.che.com/extras/pdf/Linde-to-build-hydrogen-plant-for-chemical-complex-in-China-and-more-business-news_8836.html
January 1, 2012
A limit controller that is suited for oven applications Yokogawa This company has recently introduced the UT35A-L Limit Controller (photo), which is an FM-approved instrument suited for oven, furnace and kiln applications. The UT35A-L can be configured as a high or low limit. It comes standard with universal input, three alarm outputs and retransmission output. There is also a timer for exceeded duration...
http://www.che.com/extras/pdf/Focus-on-Process-Instrumentation-and-Control_8837.html
January 1, 2012
Maximizing value during the procurement of equipment assets and raw materials is critical to the business functions of companies in the chemical process industries (CPI). Today’s tough economic environment places added pressure on chemical engineers to secure the best value for money spent on design and equipment. Whether the items your company needs are chemicals, pieces of equipment or skid-mounted...
http://www.che.com/extras/pdf/Total-Cost-Analysis-Aids-Purchasing-Negotiations_8838.html
January 1, 2012
In the chemical process industries (CPI) it is relatively common to use a homogeneous two-phase flow model to predict the pressure drop through the shell-side of horizontal heat exchangers that handle two-phase mixtures. Recent experimental studies reported by HTFS [1, 2], however, have shown that this approach leads to overprediction of pressure drop and to overprediction of thermal performance. As a...
http://www.che.com/extras/pdf/Designing-Shell-and-Tube-Heat-Exchangers-Consider-Two-Phase-Flow_8839.html
January 1, 2012
      Lubricants in rotating machines reduce friction and wear, dissipate heat, protect surfaces, keep out foreign contaminants and remove wear particles. Commonly used liquid lubricants fall into two main categories: mineral (petroleum-based) oils and synthetic oils. Mineral oils are produced by refining crude petroleum. They usually contain trace amounts of some unwanted substances. By...
http://www.che.com/extras/pdf/Lubricating-Rotating-Machinery_8840.html
January 1, 2012
Clausen Hirai Snyder Stehle Taylor Haldor Topsøe (Lyngby, Denmark) promotes Bjerne Clausen to CEO. SmartKem (St. Assaph, North Wales), a developer of flexible, printable semiconductor materials, appoints Yutaka Hirai to be its representative in Japan. Intelligrated (Somerset, N.J.), a provider of materials-handling solutions, names Michael Snyder sales engineer...
http://www.che.com/extras/pdf/Haldor-Topsøe-promotes-Bjerne-Clausen-to-CEO-_8841.html
January 1, 2012
Pressure relief valves and rupture disks are critical safety devices for protecting personnel and processing equipment from overpressurization situations. Presented here are several engineering practices that can help to identify and address common problems with the pressure relief systems of chemical process industries (CPI) facilities. Common causes of overpressurization Overpressure situations can have...
http://www.che.com/extras/pdf/Avoiding-Pressure-Relief-Problems_8842.html
December 1, 2011
Buscher Weidman Rodrigues Egbert Sudler Pump Solutions Group (PSG; Houston), a subsidiary of Dover Corp., names Karl Buscher senior vice president–PSG Commercial.   David Weidman , CEO of chemical company Celanese Corp. (Dallas, Tex.), will retire in April. He will be succeeded by Mark Rohr, current executive chairman and former CEO of chemical company Albermarle.  ...
http://www.che.com/extras/pdf/Koch-Membrane-Systems-promotes-Carlos-Rodrigues-to-business-development-manager-industrial-and-life-sciences-for-South-America-and-more-_8738.html
December 1, 2011
Modernizing the world’s power grids represents a key infrastructure goal for economic growth. Large-scale, energy-storage technologies offer the opportunity to optimize the efficiency of the next-generation power grid and extend its capabilities. Renewed attention on energy storage systems for the grid has given rise to a host of emerging technologies aimed at more effectively transmitting...
http://www.che.com/extras/pdf/Transporting-Energy-Through-Time_8746.html
December 1, 2011
Protecting process systems from overpressurization is a critical task in the chemical process industries (CPI), and rupture disks and safety relief valves are routinely used for this purpose. In certain situations, using rupture disks in combination with safety relief valves offers advantages that can increase safety and lower costs. The advantages include a significant lengthening of the service life of...
http://www.che.com/extras/pdf/Using-Rupture-Disks-with-Pressure-Relief-Valves_8748.html
December 1, 2011
The following letter originally appeared in Chemical Engineering, December 2011, p. 6. The U.S. Dept. of Health and Human Services’ (HHS) flawed and unwarranted ruling that styrene poses a health hazard continues to stir opposition from respected scientists, manufacturing leaders, the hundreds of thousands of American workers whose jobs depend on a viable styrene industry, and a broad-based...
http://www.che.com/extras/pdf/Better-styrene-science-needed_8752.html
December 1, 2011
Wahl Instruments Thermal imaging cameras help spot problem areas Heat Spy thermal imaging cameras (photo) are available in two series with 16 different configurations to suit a variety of applications. The z30 Seriew “Detector” is designed for on-the-spot maintenance inspections and repair. The z50 Series “Inspector” includes additional features for documenting and preparing reports...
http://www.che.com/extras/pdf/Focus-on-Temperature-Measurement-and-Control_8753.html
December 1, 2011
  Because the benefits are many, roles for simulation software tools exist from planning and design of facilities through operations and everything in between. And thanks to enhancements, it’s becoming easier to use simulation alongside other software packages, while niche simulation tools are making complex processes easier and less expensive to implement. In general, process simulation...
http://www.che.com/extras/pdf/Simulation-Spreads-its-wings_8759.html
December 1, 2011
For over 109 years now, readers have looked to Chemical Engineering for practical how-to information that can be used directly on the job, plus the latest about what’s happening in, or will be affecting, the chemical process industries (CPI). While our editors put a lot of time and effort into identifying what the most important and timely issues are, finding good sources of information and...
http://www.che.com/extras/pdf/CEs-growing-LinkedIn-presence_8772.html
December 1, 2011
Today’s plant turnarounds bear little resemblance to those of the past: Last-minute preparations and procurements combined with hurried work plans penciled into a notebook often led to undisciplined procedures, incidents and equipment that still operated with defective parts. Those bygone practices have been cleaned up and replaced with clearer processes as turnarounds have become critical to a...
http://www.che.com/extras/pdf/Turnarounds-Shorter-Safer-Simpler_8780.html
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