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Archives :: Processing & Handling :: Operations & Maintenance

Displaying 21 - 35 of 35 stories.
January 15, 2008
Feature Report: Computerized Maintenance Management Systems For Effective Plant Performance
Corralling gigabytes of predictive maintenance data isn’t easy, but it’s essential for streamlining your process Plant maintenance is one of the disciplines in a chemical process environment that uses gigabytes of technical and operational data on a daily basis. Of course, managing an industrial plant involves a large amount of data, which can be acquired, stored and represented in numerous...
http://www.che.com/processing_and_handling/operations_and_maintenance/Feature-Report-Computerized-Maintenance-Management-Systems-For-Effective-Plant-Performance_3606.html
November 15, 2007
Plasma gasification process will recycle chlorine wastes and produce syngas
A plasma-based waste-treatment process will be installed in Dow Corning Corp.’s silicon-products-manufacturing plant in Midland, Mich., where it will recycle chemical wastes, help lower the site’s consumption of natural gas by 400-billion Btu/yr and help reduce the plant’s total emissions by 75%. The installation will mark the first use of the technology in a chemical process plant, says...
http://www.che.com/processing_and_handling/operations_and_maintenance/Plasma-gasification-process-will-recycle-chlorine-wastes-and-produce-syngas_3505.html
October 1, 2007
Prevent Explosions During Transfer Of Powders Into Flammable Solvents
Click here for full pdf version of this article - includes all graphs, charts, tables, and author information   Explosion prevention must be a primary objective wherever the process of transferring powders into flammable solvents is utilized, irrelevant of the industry and existing practices, in accordance with regulatory guidelines such as the ATEX directives (Directive 94/9/EC, 1994 and Directive...
http://www.che.com/processing_and_handling/operations_and_maintenance/Prevent-Explosions-During-Transfer-Of-Powders-Into-Flammable-Solvents_3394.html
July 1, 2007
Causes and Prevention of Packing Fires
    Most columns shut down without fires. Yet most refineries and chemical plants at some time or another have experienced spontaneous or hot work ignitions in at least one column. When this occurs inside a column during or after shutdown, the results can be devastating and dangerous. This paper concentrates on the fires related to packing in columns.   Many refineries and chemical plants...
http://www.che.com/processing_and_handling/operations_and_maintenance/Causes-and-Prevention-of-Packing-Fires_3124.html
July 1, 2007
Maintenance and Repair of Glass-Lined Equipment
    Glass-lined steel equipment is used in a wide range of chemical processes that involve harsh chemicals, including the production of pharmaceuticals, specialty chemicals, agricultural products and polymers. One of the reasons for the attraction is that glass is resistant to attack from most chemicals and to mixtures of corrosive materials. In addition, it has a smooth, anti-stick surface, is...
http://www.che.com/processing_and_handling/operations_and_maintenance/Maintenance-and-Repair-of-Glass-Lined-Equipment_3137.html
July 1, 2007
Cold-spray coatings
Linde Gas (Murray Hill, N.J.; edlinks.che.com/6897-538) and partners have developed a high-pressure gas-delivery system that allows coating powders to be sprayed using liquid nitrogen at temperatures that do not melt the powder particles. The system has been optimized to support a new, cold spray gun technology, called Kinetiks 4000, manufactured by CGT GmbH (Ampfing, Germany). Such a system is being...
http://www.che.com/processing_and_handling/operations_and_maintenance/Cold-spray-coatings_3289.html
June 1, 2007
A New Approach to Corrosion Monitoring
    Most assets depreciate, losing value over time as a result of wear and tear, age, or obsolescence. Corrosion, like depreciation, results in the often hidden cost of a non-cash expense — measurable in terms of reduced operating life — that reduces the value of assets. Many engineers in the chemical process industries (CPI) see corrosion on a “straight-line basis” in...
http://www.che.com/processing_and_handling/operations_and_maintenance/A-New-Approach-to-Corrosion-Monitoring_3123.html
June 1, 2007
Small but mighty
    Although sealing technologies rarely make the headline, when they do, its usually for a tragic reason, which demonstrates how important this small component really is. For example, on January 28, 1986, the Space Shuttle Challenger disintegrated 73 seconds into its flight, after an O-ring seal in its right solid rocket booster (SRB) failed. The seal failure caused a flame leak from the SRB...
http://www.che.com/processing_and_handling/operations_and_maintenance/Small-but-mighty_3327.html
April 1, 2007
. . . and this one uses shock waves to clean watertube boilers
Another online boiler-cleaning system, in this case for coal-fired watertube boilers, is offered by GE Energy (Kansas City, Mo.; edlinks.che.com/6894-539). GE's automated system, called Powerwave+, is more efficient and less expensive than sootblowing with high-pressure steam, the commonly used online method for cleaning the...
http://www.che.com/processing_and_handling/operations_and_maintenance/-and-this-one-uses-shock-waves-to-clean-watertube-boilers_3237.html
March 1, 2007
Unit Restarts: Where to Begin?
  The preparation of a unit for restart requires complex and systematic approach. A plant restart project is traditionally composed of four steps: 1. A detailed unit-status evaluation 2. Preparation for onsite work 3. Major onsite work, which involves significant expenses for personnel, supply, equipment renting and contractors 4. Restart of the plant, which focuses on bringing the unit online. Upon...
http://www.che.com/processing_and_handling/operations_and_maintenance/Unit-Restarts-Where-to-Begin_3132.html
January 1, 2007
Maintenance Tools
    A wake-up call for plant maintenance The new Simatic Teleservice Adaptor IE (photo) facilitates cost-effective remote maintenance of machinery and plants. In acute service cases or emergencies, an email can be sent via the device. The engineer then scans the plant status via remote connection and carries out modifications. A new version of the adapter with Industrial-Ethernet interface has...
http://www.che.com/processing_and_handling/operations_and_maintenance/Maintenance-Tools_3152.html
December 1, 2006
An alternative to cranes for moving heavy equipment
As the demand for productions plants with “mega” capacities grows, one challenge facing engineering contractors has been how to move the very large vessels, columns, heat exchangers and other equipment as it's being constructed. Now companies that fabricate and assemble equipment weighing from 20 to 300 tons and greater can now freely move those items anywhere in their...
http://www.che.com/processing_and_handling/operations_and_maintenance/An-alternative-to-cranes-for-moving-heavy-equipment_3051.html
December 1, 2006
Stay-clean surfaces
Surfaces treated with Top on Top — a new surface refinement technology developed by Degussa AG (Düsseldorf, Germany; edlinks.che.com/6519-552) — are easy to clean and...
http://www.che.com/processing_and_handling/operations_and_maintenance/Stay-clean-surfaces_3059.html
November 1, 2006
Cr-free coatings
A new primer technology for coating aluminum aircraft that uses magnesium instead of chromium has been developed by researchers at the North Dakota State University (Fargo; edlinks.che.com/5618-546). A...
http://www.che.com/processing_and_handling/operations_and_maintenance/Cr-free-coatings_3039.html
August 1, 2006
This device reduces manual labor for cleaning storage tanks
Cleaning the inside of large storage tanks at petroleum refineries and bulk chemical facilities typically involves workers using water cannons, shovels and even mini bulldozers. Such manual labor is not only time-consuming, but places the workers at risk due to flammable and toxic vapors that may be present. A device developed by researchers at...
http://www.che.com/processing_and_handling/operations_and_maintenance/This-device-reduces-manual-labor-for-cleaning-storage-tanks_2983.html
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