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Archives :: Processing & Handling :: Separation (Gas-Solid & Liquid-Solid)

Displaying 121 - 129 of 129 stories.
January 1, 2007
A process that can enrich highly contaminated natural gas has been developed at Eindhoven University of Technology (Netherlands; edlinks.che.com/6891-531), with support from the Royal Shell/Dutch Group. The device shows promise as a way to utilize the large quantities of natural gas that is currently unusable because of high concentrations of carbon dioxide and hydrogen sulfide. Existing technology, such...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/centrifuges/Clean-dirty-gas-with-this-centrifugal-gas-separator_3183.html
December 1, 2006
    Screening is an integral part of many dry material processes, ensuring an end product that is free of fine or oversized material, or in some cases achieving a specified particle distribution. In any case, the screening process is critical to the quality of the end product. Screening equipment uses screening medium (usually wire mesh or perforated plate) and a screening motion to convey the...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/classifiers_and_gravity_separators/Factors-Affecting-Screening-Performance_3115.html
October 1, 2006
    Provided that they are updated when appropriate to keep them relevant, time-tested heuristics rules based upon experience, also referred to as rules of thumb, can be useful for the design, specifying and operation of several kinds of equipment used in process plants. The first and foremost heuristic rule is that the engineer should not shy away from using heuristics - and the second rule is...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/dryers/Heuristics-Rules-for-Process-Equipment_2808.html
October 1, 2006
    Process small batches with this fluid-bed dryer The Circular Vibratory Fluid Bed Processing System (photo) dries small batches of bulk-solid materials at high temperatures. The self-contained system integrates an 18-in.-dia. fluid-bed processor with heater, blower, cyclone separator and controls, ready for connection to a material inlet/outlet and power source. Intended for small volume...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/dryers/Dryers_2836.html
September 1, 2006
    Solid-liquid separation is a key unit operation that processors look to for a wide-range of applications ranging from: the lowly removal of debris from cooling-fluid lines and products; through the recovery of product from solvents; to massive-scale dewatering of sludge and mineral slurries. Depending on the application, there is a plethora of technology available to perform these tasks. What...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Solid-Liquid-Separation-Showcase_3082.html
August 1, 2006
A chemical-treatment process, called Kemicond, that reduces the volume and odor of sludge has been commercialized by its developer Kemitra Kemi AB Kemwater (Helsingborg, Sweden; edlinks.che.com/6515-532). The first commercial application - a system for Käppala Association (Stockholm, Sweden) that treats sewage water from nine municipalities in northern Stockholm - started up in April; approximately...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/A-sludge-treatment-process-makes-its-commercial-debut_2976.html
March 1, 2006
The presence of arsenic minerals, such as enargite and tennantite, in some copper-bearing ore bodies, can be a problem for those wishing to recover the copper. When delivering copper concentrates to smelters in Australia, for example, miners are subjected to substantial penalties if...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Chementator-Selective-flotation_2914.html
March 1, 2006
    A direct link between the size of particles and their potential for causing health problems is what has the U.S. Environmental Protection Agency (EPA; Washington, D.C.; epa.gov) concerned about particulate matter (PM) that is 10µm in diameter or smaller. Renewed concerns have prompted the chemical process industries (CPI) to seek out more efficient dust-control systems that can handle...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Dust-collection-focuses-on-smaller-particles_3070.html
January 1, 2001
Cyclones are among the simplest and most easily fabricated pieces of processing equipment. They are used extensively in the chemical process industries (CPI) for gas-solids separation. In petroleum refineries, for example, cyclones are used in the reactors and regenerators of fluid catalytic cracking (FCC) units, in fluid coking units, and following fluidized-bed incinerators that handle refinery-waste...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/cyclones/Cyclone-Design-Tips_7909.html
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