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Displaying 121 - 140 of 1625 stories.
March 25, 2013
Click here for full pdf version of this article...
http://www.che.com/extras/pdf/Avoiding-Runaway-Reactions_10360.html
March 25, 2013
Users design safety instrumented systems to bring the risk of identified process hazards to within tolerable levels, using application-specific risk...
http://www.che.com/extras/pdf/Design-Safety-Instrumented-Systems-with-Relevant-Data_10361.html
March 1, 2013
Because many of their products go directly to the ultimate end user, polymer and plastic processors are being asked to make their final products safer. Both consumers and governments alike are demanding that plastics, especially those that are destined for food contact, contain lower residual solvent and monomer levels. At the same time, the biopolymer industry is exploding and processors want to get in on...
http://www.che.com/extras/pdf/Trends-in-polymer-processing_10260.html
March 1, 2013
Machinery Failure Analysis and Troubleshooting: Practical Machinery Management for Process Plants. 4th ed. By Fred Geitner and Heinz Bloch. Elsevier Ltd., The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, U.K.. Web: elsevier.com. 2012. 743 pages. $139.95.   Thermal Methods of Polymer Processing. By T.R. Crompton. iSmithers Rapra Publishing, Shawbury, Shrewsbury, Shropshire SY4 4NR, U.K. Web...
http://www.che.com/extras/pdf/Bookshelf_10261.html
March 1, 2013
Morse Manufacturing Lift and pour drums with this machine The Pilot (photo) is a powered apparatus for lifting, rotating and dumping chemical-containing drums. The walk-behind drum handler has a floor-travel speed of 3.0 mph, a drum-lifting speed of 5 cm/s, and can dump drums up to 10.5 ft high and up to 11 in. beyond its straddle-type legs. The Pilot can handle drum weights up to 1,500 lb. The machine can...
http://www.che.com/extras/pdf/Focus-on-bins-silos-and-storage_10289.html
March 1, 2013
  Boyens Lainé Distaso Duncan Siegel   Helmuth Möhwald is elected as a member of the Academia Europaea, a European non-governmental association whose memberships includes experts in technology, medicine, mathematics, economics, the law and more. He is director of the department of interfaces at the Max Planck Institute of Colloids and Interfaces (Potsdam...
http://www.che.com/extras/pdf/Wolfgang-Siegel-becomes-CEO-of-Ter-Hell-Plastic-GmbH-_10294.html
March 1, 2013
To realize the best possible thermal efficiency, gas turbines should be integrated into chemical process industries (CPI) plants, but doing so can be difficult and requires special consideration. Specifically, in some CPI units, while the turbine’s shaft is driving an equipment component (such as a compressor), the hot exhaust gas from the gas turbine can be connected to furnace burners or...
http://www.che.com/extras/pdf/Integrating-Gas-Turbines-Into-CPI-Facilities_10295.html
March 1, 2013
Many chemical process industries (CPI) facilities utilize high-pressure steam generators to produce both electricity and process steam. This technique is commonly known as combined heat and power (CHP). A popular approach in recent years has been to select a combined-cycle power and steam-generation unit to utilize the combination of a combustion turbine and a heat-recovery steam generator (HRSG) for...
http://www.che.com/extras/pdf/Beware-of-Flow-Accelerated-Corrosion_10296.html
March 1, 2013
One of the most unsettling experiences in a company’s existence may be the surprise regulatory inspection by a representative of the U.S. Environmental Protection Agency (EPA) or a State Environmental Agency. What if you refuse to let them in? What are your rights? How can you best ensure that the inspection goes smoothly? This article briefly summarizes the government’s environmental...
http://www.che.com/extras/pdf/Responding-to-Environmental-Inspections_10297.html
March 1, 2013
Propylene is typically considered a co-product in steam crackers and fluid-catalytic-cracking (FCC) processes, which are primarily driven by ethylene and motor gasoline production, respectively. Recently, most U.S. ethylene producers have shifted to lighter feedstocks due to the availability of low-cost natural gas and natural-gas liquids (NGLs) from shale. This shift drastically decreases propylene...
http://www.che.com/extras/pdf/Propylene-Production-via-Metathesis_10298.html
March 1, 2013
Piping leakage due to corrosion has the potential to cause catastrophic fires and damage to process equipment in petroleum refining and other chemical process industries (CPI) facilities. When such incidents occur, a large amount of damage and a long downtime results. Despite the risks, mistakes are often repeated in the way burner piping is designed and used. Using the failure-analysis investigation of a...
http://www.che.com/extras/pdf/Corrosion-in-Flexible-Burner-Hoses_10300.html
March 1, 2013
It was Terry Thurber’s idea. It was a bad idea. But Bob Miller and Nick Urbanski taught me many years ago that, in the research and development (R&D) world, bad ideas are often the best ideas. Install things upside down or turn them inside out. R&D managers will be surprised at what can be learned. Thereafter, file what was learned under “We Learn More From Our Failures Than Our...
http://www.che.com/extras/pdf/Ruptured-rupture-disc_10301.html
March 1, 2013
Plant Watch KBR to provide technology package for ammonia/urea plant in Indonesia February 7, 2013 — KBR (Houston; www.kbr.com) has announced that it was selected by PT Pupuk Sriwidjaja Palembang, to provide licensing, engineering services and proprietary equipment for a new 2,000 metric tons (m.t.) per day ammonia and 2,750-m.t./d urea plant located in Palembang, South Sumatra, Indonesia. The plant...
http://www.che.com/extras/pdf/Bechtel-acquires-Chevrons-water-treatment-process-and-more-business-news_10302.html
March 1, 2013
Temperature is among the most critical measurements in the chemical process industries (CPI) for operating safe and efficient processes. Because even a small error in temperature can lead to expensive consequences, accurate and reliable monitoring of temperature is required. Thermowells The most accurate temperature measurements occur when the sensor is in direct contact with the process fluid being...
http://www.che.com/extras/pdf/Thermowell-Installation_10303.html
February 1, 2013
This new software version includes solids modeling Aspen Technology The latest iteration of this company’s process automation software, aspenONE V8, was recently released with new functionality, including solids modeling. The integration of the solids modeling capability eliminates the “silos” that previously existed between solid- and liquid-modeling processes. The aspenONE V8 software...
http://www.che.com/extras/pdf/Focus-on-Software_10149.html
February 1, 2013
At Chemical Engineering magazine, we focus the bulk of our coverage on the unit operations and equipment that tie the various segments of the chemical process industries (CPI) together. Regardless of industry sector, plant engineers perform chemical, mechanical and thermal transformations of raw materials, including petroleum, minerals, air and others, into products, using a host of common processes. But...
http://www.che.com/extras/pdf/A-partnership-for-process-understanding_10160.html
February 1, 2013
Pressure-relief valves are widely and effectively used in situations where the pressure in a process vessel rises to above the vessel’s design-pressure rating. Proper relief-valve sizing is critical to plant and process safety to permit fluids sufficient flow area to exit the vessel. Sizing relief valves requires several equations for different flows (liquid flow, vapor flow and two-phase flow), as...
http://www.che.com/extras/pdf/Sizing-Calculations-for-Pressure-Relief-Valves_10173.html
February 1, 2013
There was genuine excitement at the November 14 and 15 ChemInnovations event held in New Orleans. This was especially true at the Plant Managers Roundtable that was moderated by Rebekkah Marshall. On stage with Rebekkah were Jim Armstrong of Rhodia, Inc., Paresh Bhakta of Celanese Ltd. and Jim Hull of Georgia Gulf Chemicals and Vinyls, LLC. All three gentlemen are very experienced plant managers, all with...
http://www.che.com/extras/pdf/Opportunities-for-Recent-Grads_10174.html
February 1, 2013
Because natural gas supplies are significantly increasing due to the rising exploitation of shale gas, mainly in the U.S., propane prices are decreasing. Coupled with low propane prices, ethylene producers are shifting to lighter feedstocks (more ethane, less naphtha), which is decreasing yields of propylene in cracking operations. The increasing demand for propylene and the availability of low-cost...
http://www.che.com/extras/pdf/Technology-Profile-Propylene-Production-via-Propane-Dehydrogenation_10175.html
February 1, 2013
Supplying steam that meets process needs while protecting steam-system components, such as boilers and steam turbines (Figure 1), against scale, fouling and corrosion, requires purified feedwater (condensate plus makeup water). Depending on the steam pressure required, the specific approach of the water treatment may be shifted to account for a variety of issues. For example, caustic corrosion and...
http://www.che.com/extras/pdf/Steam-System-Water-Preparation_10176.html
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