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Displaying 121 - 140 of 1632 stories.
April 1, 2013
The detection of gases in plant environments has a critical and wide-ranging role in the chemical process industries (CPI). Among the major applications of gas detection are limiting personnel exposure to hazardous chemicals, preventing explosive atmospheres, protecting the environment and identifying leaks in process equipment. Table 1 summarizes the main reasons for gas monitoring. All CPI workers should...
http://www.chemengonline.com/extras/pdf/Gas-Hazard-Definitions-and-Data_10387.html
April 1, 2013
Sodium hypochlorite (NaClO) is the active constituent in chlorine bleach, a strong oxidizer and bleaching agent. Increases in household bleach demand are driven mostly by population growth. In turn, population growth and its corresponding increases in water consumption — coupled with limited fresh water resources — makes water treatment the largest application for bleach, as well as the...
http://www.chemengonline.com/extras/pdf/Sodium-Hypochlorite-Chemical-Production_10388.html
April 1, 2013
This article provides guidance to the designer and operator of a safety-instrumented system (SIS), with an emphasis on conducting measurements. The use of best practices to ensure the strength of the overall system design, and the use of instrument diversity to combat common causes of failure, are covered briefly. Greater detail are provided on the use of new technologies — in particular, new...
http://www.chemengonline.com/extras/pdf/Safety-Instrumented-Systems-Focus-on-Measurement-Diagnostics_10393.html
April 1, 2013
What if someone were to tell you that there is one method available for sizing relief valves that applies to virtually every situation, including two-phase flow and supercritical fluids? And what if they told you that method is more accurate and easier to use than traditional methods or formulas? As it turns out, both of these statements are true. The approach described here — the Direct Integration...
http://www.chemengonline.com/extras/pdf/The-Direct-Integration-Method-A-Best-Practice-for-Relief-Valve-Sizing_10394.html
April 1, 2013
Plant Watch AkzoNobel Chemical Island starts supply to world’s biggest single-line pulp mill March 7, 2013 — AkzoNobel’s (Amsterdam, The Netherlands; www.akzonobel.com) new €90-million Jupiá Chemical Island in Brazil has begun supplying the Eldorado Brasil Celulose pulp mill, which is the biggest in the world. The Jupiá facility, one of AkzoNobel’s largest...
http://www.chemengonline.com/extras/pdf/AkzoNobel-Chemical-Island-starts-supply-to-worlds-biggest-single-line-pulp-mill-and-more-business-news_10396.html
April 1, 2013
Eichentopf Aust Sesselmann Grenier Allen Ralf Eichentopf is now part of the management team at GEA Bock GmbH (Frickenhausen, Germany), where he will be responsible for manufacturing. Erik Aust is the new director of sales for the market segment Mobile Applications (compressors for buses and trains).   Bernhard Nick becomes head of the Strategic Planning & Controlling Div. of BASF SE...
http://www.chemengonline.com/extras/pdf/Terry-Allen-becomes-vice-president-of-sales-for-North-America-for-Perten-Instruments-AB-_10397.html
March 25, 2013
Click here for full pdf version of this article...
http://www.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.com/extras/pdf/Bechtel-acquires-Chevrons-water-treatment-process-and-more-business-news_10302.html
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